okay.. I have to admit being curious myself.??
I will send you:??
- the ENI board with the current parts on it (all new except the switch and Module A)
- please ignore the soldering boo boos... these phenolic single sided board cannot take many soldering hits, as you probably well know. My plan was to clean up and jumper the lifted pads once I confirmed functionality.? ??
- I have one transistor (V3) tacked to the bottom solder side I was going to put it in its proper place if confirmed good.??
- because whoever built these original boards loved to crimp leads, I snipped off most of the original parts.? The original transformers have little stubs of leads left on them.? Still probeable.??
- the original transformer, and one of the ones I got off eBay, and the one Lenox had provided me is soldered on the board now (note the transformer is not yet secured to the board).??
- and since the battery cage is hard wired to the board, i will send it along attached as well, without batteries.? Oh - one of the battery cage negative through hole rings lifted - I was going to fix that as part of final clean up.? ?
|
By the way, I'll return new parts for your next LENi conversion don't worry about that.
George?
----- Original Message ----- From: Michael C <mtcooper01@...> To: [email protected]Sent: Tue, 17 May 2022 10:45:03 -0400 (EDT) Subject: Re: [CDV700CLUB] Leni conversion #3
Beam me up CDV1701A...?
okay...? update.? ?
1.? George - this ENI board is a mess.? Thanks for the offer to look at it, but I think I am sending it skyward as space junk.? ?
2.? Lenox had provided me a couple generic transformers two years ago, one of them salvaged a past LENi project.? I tried one on this ENI.?
there are two different instructions for the color coding of this transformer and matching the pinouts of CDV 700.??
a) color codes were hand written in pencil on the box the transformer came in.? I tried that hookup first -? description of results below. Basically - a steady hum from transformer, some HV but low.? Cannot hit 15V (5.7V). No sound out of speaker at all.??
b) Lenox provided a schematic with color codes hand written in at the transformer pins.? I rewired yesterday to this pinout. Worse results.? I get HV, but, now has a dirty scratchy 'hum/buzz' from the board (not the speaker).? Definitely not a happy sound.? ?The 15V is now around 1V.? ?The meter does not move to position on the dial, nor, does it respond to check source.? No sound out of speaker at all.??
so ... as warping through space look out for the little ENI board zinging by.? ?
thanks
Michael C
|
Micahel, please send me the boards, worse case I can strip the parts and send them back to you after testing all.
This one has me curious.
Do include the original transistors,?
Thanks
Geo
----- Original Message ----- From: Michael C <mtcooper01@...> To: [email protected]Sent: Tue, 17 May 2022 10:45:03 -0400 (EDT) Subject: Re: [CDV700CLUB] Leni conversion #3
Beam me up CDV1701A...?
okay...? update.? ?
1.? George - this ENI board is a mess.? Thanks for the offer to look at it, but I think I am sending it skyward as space junk.? ?
2.? Lenox had provided me a couple generic transformers two years ago, one of them salvaged a past LENi project.? I tried one on this ENI.?
there are two different instructions for the color coding of this transformer and matching the pinouts of CDV 700.??
a) color codes were hand written in pencil on the box the transformer came in.? I tried that hookup first -? description of results below. Basically - a steady hum from transformer, some HV but low.? Cannot hit 15V (5.7V). No sound out of speaker at all.??
b) Lenox provided a schematic with color codes hand written in at the transformer pins.? I rewired yesterday to this pinout. Worse results.? I get HV, but, now has a dirty scratchy 'hum/buzz' from the board (not the speaker).? Definitely not a happy sound.? ?The 15V is now around 1V.? ?The meter does not move to position on the dial, nor, does it respond to check source.? No sound out of speaker at all.??
so ... as warping through space look out for the little ENI board zinging by.? ?
thanks
Michael C
|
Beam me up CDV1701A...?
okay...? update.? ?
1.? George - this ENI board is a mess.? Thanks for the offer to look at it, but I think I am sending it skyward as space junk.? ?
2.? Lenox had provided me a couple generic transformers two years ago, one of them salvaged a past LENi project.? I tried one on this ENI.?
there are two different instructions for the color coding of this transformer and matching the pinouts of CDV 700.??
a) color codes were hand written in pencil on the box the transformer came in.? I tried that hookup first -? description of results below. Basically - a steady hum from transformer, some HV but low.? Cannot hit 15V (5.7V). No sound out of speaker at all.??
b) Lenox provided a schematic with color codes hand written in at the transformer pins.? I rewired yesterday to this pinout. Worse results.? I get HV, but, now has a dirty scratchy 'hum/buzz' from the board (not the speaker).? Definitely not a happy sound.? ?The 15V is now around 1V.? ?The meter does not move to position on the dial, nor, does it respond to check source.? No sound out of speaker at all.??
so ... as warping through space look out for the little ENI board zinging by.? ?
thanks
Michael C
|
Clay, we're aware of the lockdown, that' why Mat Hazzard was chosen to crew the CDV1701A. He was specially bio-engineered with a hard depleted uranium skin, which is known to resist Deathamine poisoning.?
?
pic of Mat and Pepper Ann's wedding.
?
Geo
?
From: "freshndaire" <fanman@...> To: "CDV700CLUB" < [email protected]> Sent: Monday, May 16, 2022 6:54:23 PM Subject: Re: [CDV700CLUB] Leni conversion #3
?
Geo,
Those don¡¯t look like ENI pedestals so they should be good to at least Warp 2.? I¡¯ve seen uncorroborated reports that ENIs may suffer from the brittle fractures and corrosion due to minute traces of Tribble urine in free space.? Something about the pot metal reacting with atoms of ?MethylEthylDeathamine in their urine.? Don¡¯t look it up, it¡¯s terrifying what a single atom can do to biological beings.? The ministry of truth will be after me for mentioning it and will probably scrub all search results before I even post this. ?Earth is locked down, interstellar travel has been banned, like we can do that anyway.? Just be careful out there and don¡¯t get any Trbble dribble on you.? It¡¯s impossible to get off.
?
Clay-? A speaker of truth.? Just not this time J
?
Clay said: " ?The broken handles/pedestals are often quite bad.? The pot metal fails as it crystallizes.? I¡¯m not a metallurgist but per my observations the cracks often open up in more than one place and the remaining structural strength is very, very low.? Even impregnating the cracks with JB Weld (not easy to do without a vacuum system) might fail if a new crystalline or brittle fracture occurs.? I absolutely don¡¯t recommend trying.? All 10 of the ENIs I bought in a case lot had cracks and several had fallen apart in the boxes, some in multiple pieces.? It is my belief that the deterioration is ongoing and caused by something in the pot metal alloy."
That makes sense to me Clay.
I built a test jig to measure the pedestal's strength, but it didn't fly..
It would have been piloted by Captain Mat Hazzard.
|
Geo, Those don¡¯t look like ENI pedestals so they should be good to at least Warp 2.? I¡¯ve seen uncorroborated reports that ENIs may suffer from the brittle fractures and corrosion due to minute traces of Tribble urine in free space.? Something about the pot metal reacting with atoms of ?MethylEthylDeathamine in their urine.? Don¡¯t look it up, it¡¯s terrifying what a single atom can do to biological beings.? The ministry of truth will be after me for mentioning it and will probably scrub all search results before I even post this. ?Earth is locked down, interstellar travel has been banned, like we can do that anyway.? Just be careful out there and don¡¯t get any Trbble dribble on you.? It¡¯s impossible to get off. ? Clay-? A speaker of truth.? Just not this time J
toggle quoted message
Show quoted text
From: [email protected] [mailto:[email protected]] On Behalf Of Geo Dowell
Sent: Monday, May 16, 2022 5:49 AM
To: CDV700CLUB
Subject: Re: [CDV700CLUB] Leni conversion #3? Clay said: " ?The broken handles/pedestals are often quite bad.? The pot metal fails as it crystallizes.? I¡¯m not a metallurgist but per my observations the cracks often open up in more than one place and the remaining structural strength is very, very low.? Even impregnating the cracks with JB Weld (not easy to do without a vacuum system) might fail if a new crystalline or brittle fracture occurs.? I absolutely don¡¯t recommend trying.? All 10 of the ENIs I bought in a case lot had cracks and several had fallen apart in the boxes, some in multiple pieces.? It is my belief that the deterioration is ongoing and caused by something in the pot metal alloy." That makes sense to me Clay. I built a test jig to measure the pedestal's strength, but it didn't fly.. It would have been piloted by Captain Mat Hazzard.
|
hi Lenox,?
I rewired the transformer per the schematic you provided. These color codes are different than color codes that are written in pencil on the box the transformer was in.??
I powered on with the rewired transformer and get a real dirty buzz out of the transformer/board.? before I got a quiet study hum like an angry bumblebee.? ?Now - a dirty, scratchy buzz from the board, not through the speaker? ?The speaker is still dead
silent.
Michael C
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?
Hi George and Michael,
?
I have been out-of-pocket for a few days as we went to Colorado for our oldest granddaughter¡¯s graduation from the Colorado School of Mines.
?
Michael, I found the color code for the transformers with the colored wires in one of the CD V-700 Manuals.? See the attached schematic.
?
I keep a pretty good lookout for any of the CD V-700s (except for the Antons) and have not found any at a decent price lately.? They seem to be going up in price like everything else.? Ever since Putin fired
a few rounds near the Chernobyl? reactors the prices have been going up and the quantity of foreign stuff has increased tremendously.?
?
Last time I tried to buy one with a broken handle the price was the same as for one with a good handle and the guy wouldn¡¯t budge.? I assume it eventually sold.
?
I don¡¯t think that the broken handles are even much of a problem.? I think that one could drill a hole in both pieces and put some JB Weld along with a short piece of steel (a piece of a nail) and stick
the two pieces together and maybe do it where the crack would barely show.? I never have tried it but it should work.? It would be worth a try if anyone ever has a broken handle.
?
Lenox
?
?
?
Subject: Re: [CDV700CLUB] Leni conversion #3
?
OK MichaelC. Don't dismay. You have a good housing, a good meter etc.
Would you consider sending just the PCB to me and let me look at it??
Then you can move on to your next project but keep the housing meter etc. until I return the PCB or a different one for it.
By the way, I can remove the switch, set the tension, polish it up and it will look and work like new!
Also try to find ENi CDV-700's that have damaged or missing handles or probe clips for cheap. We'll talk off list about that.
Lenox, if you're reading this you do the same.
|
Clay said: " ?The broken handles/pedestals are often quite bad.? The pot metal fails as it crystallizes.? I¡¯m not a metallurgist but per my observations the cracks often open up in more than one place and the remaining structural strength is very, very low.? Even impregnating the cracks with JB Weld (not easy to do without a vacuum system) might fail if a new crystalline or brittle fracture occurs.? I absolutely don¡¯t recommend trying.? All 10 of the ENIs I bought in a case lot had cracks and several had fallen apart in the boxes, some in multiple pieces.? It is my belief that the deterioration is ongoing and caused by something in the pot metal alloy."
That makes sense to me Clay.
I built a test jig to measure the pedestal's strength, but it didn't fly..
It would have been piloted by Captain Mat Hazzard.
From: "freshndaire" <fanman@...> To: "CDV700CLUB" < [email protected]> Sent: Monday, May 16, 2022 2:18:16 AM Subject: Re: [CDV700CLUB] Leni conversion #3
Found the parts.? I have several pedestals and probe clips.? Sounds like Geo has them as well.? So don¡¯t fret the pedestal? problem. ? Clay ? ? Hi Lennox, Michael, & Geo, ? The broken handles/pedestals are often quite bad.? The pot metal fails as it crystallizes.? I¡¯m not a metallurgist but per my observations the cracks often open up in more than one place and the remaining structural strength is very, very low.? Even impregnating the cracks with JB Weld (not easy to do without a vacuum system) might fail if a new crystalline or brittle fracture occurs.? I absolutely don¡¯t recommend trying.? All 10 of the ENIs I bought in a case lot had cracks and several had fallen apart in the boxes, some in multiple pieces.? It is my belief that the deterioration is ongoing and caused by something in the pot metal alloy. ?I have seen it on many other items.? It is not a mechanical fault, at least not in any of them I have ever seen.? My case of ENIs was not damaged at all and had all the original packaging in the individual boxes.? At least my ENIs weren¡¯t dropped when the pedestal failed. ?? ??I may still have the old handles, but I can¡¯t locate them.? I was going to take some pictures of the way they failed.? Sanity may have taken over and I may have tossed the crystallized pile of crap. ? Years ago I obtained a pile of parts.? Yes, probe mounts, probe holder clips and even some ball chains with the audio jack cover.? I cleaned up some of the pedestals and painted them and they looked and worked ?great on my pile o¡¯ ENIs, even though the color was little off. ? I looked in 7 spots I have Geiger stuff but did not locate them, I¡¯ll look in the 8th place as soon as I remember where that place is.? I am my own worst enemy.? I¡¯ll find them, and I had more than one or two extras so don¡¯t worry about replacements. ?I can see the box in my minds one good eye. ?I¡¯ll ponder for a few and also contact the person I got the parts from just in case he has more he might want to part with. ? Clay ? ? ? Hi George and Michael, ? I have been out-of-pocket for a few days as we went to Colorado for our oldest granddaughter¡¯s graduation from the Colorado School of Mines. ? Michael, I found the color code for the transformers with the colored wires in one of the CD V-700 Manuals.? See the attached schematic. ? I keep a pretty good lookout for any of the CD V-700s (except for the Antons) and have not found any at a decent price lately.? They seem to be going up in price like everything else.? Ever since Putin fired a few rounds near the Chernobyl? reactors the prices have been going up and the quantity of foreign stuff has increased tremendously.? ? Last time I tried to buy one with a broken handle the price was the same as for one with a good handle and the guy wouldn¡¯t budge.? I assume it eventually sold. ? I don¡¯t think that the broken handles are even much of a problem.? I think that one could drill a hole in both pieces and put some JB Weld along with a short piece of steel (a piece of a nail) and stick the two pieces together and maybe do it where the crack would barely show.? I never have tried it but it should work.? It would be worth a try if anyone ever has a broken handle. ? Lenox ? ? ? Subject: Re: [CDV700CLUB] Leni conversion #3 ? OK MichaelC. Don't dismay. You have a good housing, a good meter etc. Would you consider sending just the PCB to me and let me look at it?? Then you can move on to your next project but keep the housing meter etc. until I return the PCB or a different one for it. By the way, I can remove the switch, set the tension, polish it up and it will look and work like new! Also try to find ENi CDV-700's that have damaged or missing handles or probe clips for cheap. We'll talk off list about that. Lenox, if you're reading this you do the same.
|
Found the parts.? I have several pedestals and probe clips.? Sounds like Geo has them as well.? So don¡¯t fret the pedestal? problem. ? Clay ?
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From: [email protected] [mailto:[email protected]] On Behalf Of freshndaire
Sent: Sunday, May 15, 2022 10:03 PM
To: [email protected]
Subject: Re: [CDV700CLUB] Leni conversion #3? Hi Lennox, Michael, & Geo, ? The broken handles/pedestals are often quite bad.? The pot metal fails as it crystallizes.? I¡¯m not a metallurgist but per my observations the cracks often open up in more than one place and the remaining structural strength is very, very low.? Even impregnating the cracks with JB Weld (not easy to do without a vacuum system) might fail if a new crystalline or brittle fracture occurs.? I absolutely don¡¯t recommend trying.? All 10 of the ENIs I bought in a case lot had cracks and several had fallen apart in the boxes, some in multiple pieces.? It is my belief that the deterioration is ongoing and caused by something in the pot metal alloy. ?I have seen it on many other items.? It is not a mechanical fault, at least not in any of them I have ever seen.? My case of ENIs was not damaged at all and had all the original packaging in the individual boxes.? At least my ENIs weren¡¯t dropped when the pedestal failed. ?? ??I may still have the old handles, but I can¡¯t locate them.? I was going to take some pictures of the way they failed.? Sanity may have taken over and I may have tossed the crystallized pile of crap. ? Years ago I obtained a pile of parts.? Yes, probe mounts, probe holder clips and even some ball chains with the audio jack cover.? I cleaned up some of the pedestals and painted them and they looked and worked ?great on my pile o¡¯ ENIs, even though the color was little off. ? I looked in 7 spots I have Geiger stuff but did not locate them, I¡¯ll look in the 8th place as soon as I remember where that place is.? I am my own worst enemy.? I¡¯ll find them, and I had more than one or two extras so don¡¯t worry about replacements. ?I can see the box in my minds one good eye. ?I¡¯ll ponder for a few and also contact the person I got the parts from just in case he has more he might want to part with. ? Clay ? ? ? Hi George and Michael, ? I have been out-of-pocket for a few days as we went to Colorado for our oldest granddaughter¡¯s graduation from the Colorado School of Mines. ? Michael, I found the color code for the transformers with the colored wires in one of the CD V-700 Manuals.? See the attached schematic. ? I keep a pretty good lookout for any of the CD V-700s (except for the Antons) and have not found any at a decent price lately.? They seem to be going up in price like everything else.? Ever since Putin fired a few rounds near the Chernobyl? reactors the prices have been going up and the quantity of foreign stuff has increased tremendously.? ? Last time I tried to buy one with a broken handle the price was the same as for one with a good handle and the guy wouldn¡¯t budge.? I assume it eventually sold. ? I don¡¯t think that the broken handles are even much of a problem.? I think that one could drill a hole in both pieces and put some JB Weld along with a short piece of steel (a piece of a nail) and stick the two pieces together and maybe do it where the crack would barely show.? I never have tried it but it should work.? It would be worth a try if anyone ever has a broken handle. ? Lenox ? ? ? Subject: Re: [CDV700CLUB] Leni conversion #3 ? OK MichaelC. Don't dismay. You have a good housing, a good meter etc. Would you consider sending just the PCB to me and let me look at it?? Then you can move on to your next project but keep the housing meter etc. until I return the PCB or a different one for it. By the way, I can remove the switch, set the tension, polish it up and it will look and work like new! Also try to find ENi CDV-700's that have damaged or missing handles or probe clips for cheap. We'll talk off list about that. Lenox, if you're reading this you do the same.
|
Hi Lennox, Michael, & Geo, ? The broken handles/pedestals are often quite bad.? The pot metal fails as it crystallizes.? I¡¯m not a metallurgist but per my observations the cracks often open up in more than one place and the remaining structural strength is very, very low.? Even impregnating the cracks with JB Weld (not easy to do without a vacuum system) might fail if a new crystalline or brittle fracture occurs.? I absolutely don¡¯t recommend trying.? All 10 of the ENIs I bought in a case lot had cracks and several had fallen apart in the boxes, some in multiple pieces.? It is my belief that the deterioration is ongoing and caused by something in the pot metal alloy. ?I have seen it on many other items.? It is not a mechanical fault, at least not in any of them I have ever seen.? My case of ENIs was not damaged at all and had all the original packaging in the individual boxes.? At least my ENIs weren¡¯t dropped when the pedestal failed. ?? ??I may still have the old handles, but I can¡¯t locate them.? I was going to take some pictures of the way they failed.? Sanity may have taken over and I may have tossed the crystallized pile of crap. ? Years ago I obtained a pile of parts.? Yes, probe mounts, probe holder clips and even some ball chains with the audio jack cover.? I cleaned up some of the pedestals and painted them and they looked and worked ?great on my pile o¡¯ ENIs, even though the color was little off. ? I looked in 7 spots I have Geiger stuff but did not locate them, I¡¯ll look in the 8th place as soon as I remember where that place is.? I am my own worst enemy.? I¡¯ll find them, and I had more than one or two extras so don¡¯t worry about replacements. ?I can see the box in my minds one good eye. ?I¡¯ll ponder for a few and also contact the person I got the parts from just in case he has more he might want to part with. ? Clay ?
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From: [email protected] [mailto:[email protected]] On Behalf Of Lenox Carruth
Sent: Sunday, May 15, 2022 6:55 PM
To: [email protected]
Subject: Re: [CDV700CLUB] Leni conversion #3? ? Hi George and Michael, ? I have been out-of-pocket for a few days as we went to Colorado for our oldest granddaughter¡¯s graduation from the Colorado School of Mines. ? Michael, I found the color code for the transformers with the colored wires in one of the CD V-700 Manuals.? See the attached schematic. ? I keep a pretty good lookout for any of the CD V-700s (except for the Antons) and have not found any at a decent price lately.? They seem to be going up in price like everything else.? Ever since Putin fired a few rounds near the Chernobyl? reactors the prices have been going up and the quantity of foreign stuff has increased tremendously.? ? Last time I tried to buy one with a broken handle the price was the same as for one with a good handle and the guy wouldn¡¯t budge.? I assume it eventually sold. ? I don¡¯t think that the broken handles are even much of a problem.? I think that one could drill a hole in both pieces and put some JB Weld along with a short piece of steel (a piece of a nail) and stick the two pieces together and maybe do it where the crack would barely show.? I never have tried it but it should work.? It would be worth a try if anyone ever has a broken handle. ? Lenox ? ? ? Subject: Re: [CDV700CLUB] Leni conversion #3 ? OK MichaelC. Don't dismay. You have a good housing, a good meter etc. Would you consider sending just the PCB to me and let me look at it?? Then you can move on to your next project but keep the housing meter etc. until I return the PCB or a different one for it. By the way, I can remove the switch, set the tension, polish it up and it will look and work like new! Also try to find ENi CDV-700's that have damaged or missing handles or probe clips for cheap. We'll talk off list about that. Lenox, if you're reading this you do the same.
|
Hi Lenox, Good for your granddaughter!
?That's fantastic, there's an open door for females in science trades...
By the way I mentioned to Michael to watch out for ENi CDV700's with crushed handles, because I have several handles with and without the probe clips.
I figure that damage must happen when a pallet of them gets dropped from a height, the weight from the upper ones causing stress cracks in the lower ones, which eventually fail. I've seen several with the same exact damage, when everything else was AOK.
Geo
From: "radios" <radios@...> To: "CDV700CLUB" < [email protected]> Sent: Sunday, May 15, 2022 7:54:49 PM Subject: Re: [CDV700CLUB] Leni conversion #3
? Hi George and Michael, ? I have been out-of-pocket for a few days as we went to Colorado for our oldest granddaughter¡¯s graduation from the Colorado School of Mines. ? Michael, I found the color code for the transformers with the colored wires in one of the CD V-700 Manuals.? See the attached schematic. ? I keep a pretty good lookout for any of the CD V-700s (except for the Antons) and have not found any at a decent price lately.? They seem to be going up in price like everything else.? Ever since Putin fired a few rounds near the Chernobyl? reactors the prices have been going up and the quantity of foreign stuff has increased tremendously.? ? Last time I tried to buy one with a broken handle the price was the same as for one with a good handle and the guy wouldn¡¯t budge.? I assume it eventually sold. ? I don¡¯t think that the broken handles are even much of a problem.? I think that one could drill a hole in both pieces and put some JB Weld along with a short piece of steel (a piece of a nail) and stick the two pieces together and maybe do it where the crack would barely show.? I never have tried it but it should work.? It would be worth a try if anyone ever has a broken handle. ? Lenox ? ? ? Subject: Re: [CDV700CLUB] Leni conversion #3 ? OK MichaelC. Don't dismay. You have a good housing, a good meter etc. Would you consider sending just the PCB to me and let me look at it?? Then you can move on to your next project but keep the housing meter etc. until I return the PCB or a different one for it. By the way, I can remove the switch, set the tension, polish it up and it will look and work like new! Also try to find ENi CDV-700's that have damaged or missing handles or probe clips for cheap. We'll talk off list about that. Lenox, if you're reading this you do the same.
|
? Hi George and Michael, ? I have been out-of-pocket for a few days as we went to Colorado for our oldest granddaughter¡¯s graduation from the Colorado School of Mines. ? Michael, I found the color code for the transformers with the colored wires in one of the CD V-700 Manuals.? See the attached schematic. ? I keep a pretty good lookout for any of the CD V-700s (except for the Antons) and have not found any at a decent price lately.? They seem to be going up in price like everything else.? Ever since Putin fired a few rounds near the Chernobyl? reactors the prices have been going up and the quantity of foreign stuff has increased tremendously.? ? Last time I tried to buy one with a broken handle the price was the same as for one with a good handle and the guy wouldn¡¯t budge.? I assume it eventually sold. ? I don¡¯t think that the broken handles are even much of a problem.? I think that one could drill a hole in both pieces and put some JB Weld along with a short piece of steel (a piece of a nail) and stick the two pieces together and maybe do it where the crack would barely show.? I never have tried it but it should work.? It would be worth a try if anyone ever has a broken handle. ? Lenox ? ? ? Subject: Re: [CDV700CLUB] Leni conversion #3 ? OK MichaelC. Don't dismay. You have a good housing, a good meter etc. Would you consider sending just the PCB to me and let me look at it?? Then you can move on to your next project but keep the housing meter etc. until I return the PCB or a different one for it. By the way, I can remove the switch, set the tension, polish it up and it will look and work like new! Also try to find ENi CDV-700's that have damaged or missing handles or probe clips for cheap. We'll talk off list about that. Lenox, if you're reading this you do the same.
|
Hi Geo,? here I am off topic once again.? I want a modern LCR, not a fan of tubes other than collecting them.? I am pretty much done looking for an HP LCR, at my age and with what I am currently doing I really won¡¯t use it enough to justify the expense and learning curve of one.? I used to have good luck finding surplus test gear since HP was big here in Loveland and there was a lot of equipment sold at the scrap auctions for Loveland, Greeley, and Fort Collins HP sites.? But LCRs weren¡¯t built here and they just didn¡¯t get scrapped.? I volunteered with the group that ran the Loveland auctions. ? Those were the best days, great job and lots of equipment to play with.? You could check out gear worth many tens of thousands of dollars and take it home for the weekend.? In the early days of cable TV they used to put a signal between the audio and video that overloaded the front end of the TV to scramble the pay channels.? Some HP folks got together and designed a notch filter that would descramble the channels.? You could breadboard the circuit with HP stock parts and then borrow the gear to tune the filter.? I still have one built into a metal First Aid kit box.? The funny thing was if you put the filter on the output of the cable box all the channels were CH3 and the signal was the same frequency so one filter worked for all the channels.? The cable company had filters for each different channel. ?Of course it didn¡¯t take long for them to figure it out¡ ? I had a friend that was former HP that bought and sold HP gear and would wheel and deal on trades and upgrades.? Unfortunately the lunacy of today has finally ruined that strained friendship.? C'est la vie. ? I may buy a better ESR/LCR meter at some point or look at some of the kits that pop up.? Here are a couple of interesting links:
The MESR-100 ESR V2 or the Atlas/Peak ESR70 seem like good options as they have better LCR capability and the Atlas does a decent job of in-circuit tests with auto discharge capability.? Both are in the $60-$100 range.? The MESR-100 was available via Walmart.? Still not close to real lab LCR meters but since I let my ham license lapse many years ago and do little RF work the reality is I don¡¯t need better at this time.? If ease of use isn¡¯t a big concern a scope and a good frequency source can get you by for out-of-circuit measurements in many cases.? In circuit is more complicated.? ESR is definitely nice to measure in-circuit when possible.? There are ESR meter designs with a detector that eliminates all but the resistive component of the impedance.? As with anything it can get pretty complicated if you want solid reproducible result.? You can probably buy a dozen cheap testers for the cost of one test fixture for an HP LCR Meter. ? Clay ?
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From: [email protected] [mailto:[email protected]] On Behalf Of Geo Dowell
Sent: Saturday, May 14, 2022 5:57 AM
To: CDV700CLUB
Subject: Re: [CDV700CLUB] Leni conversion #3? Yeah me too on the sleep part! I was up at 4AMscanning the internet for manuals. Soon as the sun comes up I have to feed the animals. What vintage are you looking for in an LCR bench meter? Tubes or modern?
From: "freshndaire" <fanman@...>
To: "CDV700CLUB" <[email protected]>
Sent: Saturday, May 14, 2022 5:11:56 AM
Subject: Re: [CDV700CLUB] Leni conversion #3 Hi Geo, ? I follow a couple of test equipment groups.? Discussions of inexpensive test gear pop up once in a while.? I¡¯m not sure if there are any dedicated groups for inexpensive equipment.? One is [email protected].? As the name implies it is pretty much limited to HP and spin-off companies products.? The other is [email protected]. ?That one covers Tek, Boonton, R&S and a lot of lesser known gear and ?seems to have a discussion pop up once in a while about inexpensive alternatives for ¡°professional gear¡±.? I don¡¯t remember where I heard about the TC1, but I have been pretty amazed by what it does for so little money.? There are some inexpensive LCR meters that are around $90 or so that have caught my interest.? I always thought I¡¯d eventually find an HP LCR meter but never have. ?A handheld one would be a lot easier to deal with! ? Was working on a big project in the shop and didn¡¯t realize I had been out there for 6 hours and the sun will be up soon! ? Clay ? ? Clay how about a special Groups.io chat page about inexpensive home electronic testing "benches", or is there one already somewhere? For example, I'm to the point of setting up an "environmental testing chamber" on the cheap for testing components at different temperatures. Just last week I stumbled across what seems to be a precision temperature meter on the Harbor Fright closeout table for $34, and it came with two 3 foot long thermocouples cables and a fitted case. Called an AMES DTT-1372 Thermometer. It has simple controls and can switch to T1, T2 and even does a T1-T2 calculation with standard thermocouples in C or F degrees or Kelvin. On my resistance testing desk, my "shielded chamber for 4 wire resistance testing" is made from a Mickey Mouse cookie tin can I picked up at Goodwill for 50 cents. The silicone wires were salvaged from defunct oil furnace igniters.
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If too much trouble don't worry about it, just send cheapest way.
If you want, send the top panel I'll drill it for the LENi Pro options too. That will give it BNC connector, Speak2Me, volume control, flashing red LED per click, green LED for power, fast-slow response time toggle,? and X2 range toggle. If you send the bottom cover I'll punch it for a speaker, and if you want to add a pancake tube in the base, I can punch that hole too, but probably better to wait off on that. Then you'll have the works, and a model to follow for any and all mods you make to other ENi's.
George?
From: "Michael C" <mtcooper01@...> To: "CDV700CLUB" < [email protected]> Sent: Saturday, May 14, 2022 3:44:22 PM Subject: Re: [CDV700CLUB] Leni conversion #3
I buy on ebay, haven't sold.? Guess I can figure out how to do it.? ?
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I buy on ebay, haven't sold.? Guess I can figure out how to do it.? ?
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If you're a seller on eBay, make an ad for a few dollars, I buy it, you can send pcb in a small box for about $3.75. Use First class package which is tracked. when finished we'll repeat the process backwards, I'll place the ad. OK?
From: "Michael C" <mtcooper01@...> To: "CDV700CLUB" < [email protected]> Sent: Saturday, May 14, 2022 10:43:18 AM Subject: Re: [CDV700CLUB] Leni conversion #3
hi Geo,?
sure I can send the board to you.? It has a couple messy spots where pads lifted etc -? not affecting the electrical connections.? It has one of the negative battery tray plated holes lifted - since I have the tray wired for now, I was going to fix it later.? With my previous electronics manufacturing/soldering experience, I'm pretty good at repairs, jumpering, etc.? I was going to hold off on final touchups until I had it working - or not.??
let me know how to proceed.? and thanks.??
Michael C
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hi Geo,?
sure I can send the board to you.? It has a couple messy spots where pads lifted etc -? not affecting the electrical connections.? It has one of the negative battery tray plated holes lifted - since I have the tray wired for now, I was going to fix it later.? With my previous electronics manufacturing/soldering experience, I'm pretty good at repairs, jumpering, etc.? I was going to hold off on final touchups until I had it working - or not.??
let me know how to proceed.? and thanks.??
Michael C
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Yeah me too on the sleep part!
I was up at 4AMscanning the internet for manuals. Soon as the sun comes up I have to feed the animals.
What vintage are you looking for in an LCR bench meter? Tubes or modern?
Geo
From: "freshndaire" <fanman@...> To: "CDV700CLUB" < [email protected]> Sent: Saturday, May 14, 2022 5:11:56 AM Subject: Re: [CDV700CLUB] Leni conversion #3
Hi Geo, ? I follow a couple of test equipment groups.? Discussions of inexpensive test gear pop up once in a while.? I¡¯m not sure if there are any dedicated groups for inexpensive equipment.? One is [email protected].? As the name implies it is pretty much limited to HP and spin-off companies products.? The other is [email protected]. ?That one covers Tek, Boonton, R&S and a lot of lesser known gear and ?seems to have a discussion pop up once in a while about inexpensive alternatives for ¡°professional gear¡±.? I don¡¯t remember where I heard about the TC1, but I have been pretty amazed by what it does for so little money.? There are some inexpensive LCR meters that are around $90 or so that have caught my interest.? I always thought I¡¯d eventually find an HP LCR meter but never have. ?A handheld one would be a lot easier to deal with! ? Was working on a big project in the shop and didn¡¯t realize I had been out there for 6 hours and the sun will be up soon! ? Clay ? ? Clay how about a special Groups.io chat page about inexpensive home electronic testing "benches", or is there one already somewhere? For example, I'm to the point of setting up an "environmental testing chamber" on the cheap for testing components at different temperatures. Just last week I stumbled across what seems to be a precision temperature meter on the Harbor Fright closeout table for $34, and it came with two 3 foot long thermocouples cables and a fitted case. Called an AMES DTT-1372 Thermometer. It has simple controls and can switch to T1, T2 and even does a T1-T2 calculation with standard thermocouples in C or F degrees or Kelvin. On my resistance testing desk, my "shielded chamber for 4 wire resistance testing" is made from a Mickey Mouse cookie tin can I picked up at Goodwill for 50 cents. The silicone wires were salvaged from defunct oil furnace igniters.
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Hi Geo, ? I follow a couple of test equipment groups.? Discussions of inexpensive test gear pop up once in a while.? I¡¯m not sure if there are any dedicated groups for inexpensive equipment.? One is [email protected].? As the name implies it is pretty much limited to HP and spin-off companies products.? The other is [email protected]. ?That one covers Tek, Boonton, R&S and a lot of lesser known gear and ?seems to have a discussion pop up once in a while about inexpensive alternatives for ¡°professional gear¡±.? I don¡¯t remember where I heard about the TC1, but I have been pretty amazed by what it does for so little money.? There are some inexpensive LCR meters that are around $90 or so that have caught my interest.? I always thought I¡¯d eventually find an HP LCR meter but never have. ?A handheld one would be a lot easier to deal with! ? Was working on a big project in the shop and didn¡¯t realize I had been out there for 6 hours and the sun will be up soon! ? Clay ?
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From: [email protected] [mailto:[email protected]] On Behalf Of Geo Dowell
Sent: Saturday, May 14, 2022 3:00 AM
To: CDV700CLUB
Subject: Re: [CDV700CLUB] Leni conversion #3? Clay how about a special Groups.io chat page about inexpensive home electronic testing "benches", or is there one already somewhere? For example, I'm to the point of setting up an "environmental testing chamber" on the cheap for testing components at different temperatures. Just last week I stumbled across what seems to be a precision temperature meter on the Harbor Fright closeout table for $34, and it came with two 3 foot long thermocouples cables and a fitted case. Called an AMES DTT-1372 Thermometer. It has simple controls and can switch to T1, T2 and even does a T1-T2 calculation with standard thermocouples in C or F degrees or Kelvin. On my resistance testing desk, my "shielded chamber for 4 wire resistance testing" is made from a Mickey Mouse cookie tin can I picked up at Goodwill for 50 cents. The silicone wires were salvaged from defunct oil furnace igniters.
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Clay how about a special Groups.io chat page about inexpensive home electronic testing "benches", or is there one already somewhere?
For example, I'm to the point of setting up an "environmental testing chamber" on the cheap for testing components at different temperatures.
Just last week I stumbled across what seems to be a precision temperature meter on the Harbor Fright closeout table for $34, and it came with two 3 foot long thermocouples cables and a fitted case. Called an AMES DTT-1372 Thermometer. It has simple controls and can switch to T1, T2 and even does a T1-T2 calculation with standard thermocouples in C or F degrees or Kelvin.
On my resistance testing desk, my "shielded chamber for 4 wire resistance testing" is made from a Mickey Mouse cookie tin can I picked up at Goodwill for 50 cents. The silicone wires were salvaged from defunct oil furnace igniters.
Geo
Geo
Geo
From: "freshndaire" <fanman@...> To: "CDV700CLUB" < [email protected]> Sent: Friday, May 13, 2022 9:56:57 PM Subject: Re: [CDV700CLUB] Leni conversion #3
This is where the cheap ¡°Multi-Function tester TC1¡± or similar shine.? They can help test and determine the type of component like resistors, capacitors, inductors, diodes/LEDs, transistors (MOS and JFETS, bipolar thyristors) and shows the E-B-C, G-S-D or A-K pins.? Can test low voltage zeners and some infrared transmitters.? Does ESR measurement on capacitors.? Measures batteries to 4.5V.? No need to worry if you have the right pin out, you can let the TC1 determine it.? Can¡¯t do highly accurate or high value measurements but it is great for a quick test of components. ?It is not super accurate on all the parameters it detects, but you can tell a Germanium from a silicon device via A-K or Vbe drops and know for sure what pin is what on identified devices.? ?My only real complaint was the battery always discharged over several days on mine so I added a real on-off switch that disconnects the little USB rechargeable battery.? I have not seen others complain about the problem so there may be something leaking more than the sleep current with mine.? I haven¡¯t had to charge it in months since I added the switch. ?It has been a real time saver.? Just be sure to discharge any caps before testing!? You should be able to find one in the $25 range.? Available anywhere cheap China electronics are sold.? I added a few precision components to my kit so I can test calibration if in doubt.? It is one of the most versatile tools I own.? You can watch Youtube videos to see if it looks like something you would find helpful.? I don¡¯t own an LCR meter and this adds that functionality to my lab with some limitations of course. Clay ? ? can you put back in the? original transistors? or maybe put some russian ones in the other unit, see if the work there? They for sure sent you germanium PNP's right?
From: "Michael C" <mtcooper01@...>
To: "CDV700CLUB" <[email protected]>
Sent: Friday, May 13, 2022 6:53:43 PM
Subject: Re: [CDV700CLUB] Leni conversion #3 Yes.? it is installed correctly.??
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Michael C
