Re: TR-7 missing digit's on display
Well after goofing around with the voltage regulators connectors I now have display again. Do these yellow electrolytics look newer or are they original??
Not sure why the connectors didn't clean yesterday when I pulled out the board, but happy it's working. Now back to the 75A4 that someone rewired V5.?
Thanks,? Eric? K8cca?
|
Re: Misc parts at NC0B's QTH
Rob
I would like to buy the 4000 AM filter.? I have an address in Fort Recovery, Ohio.
Nigel Patterson
On Tue, Jan 23, 2024 at 7:40?PM Rob Sherwood < rob@...> wrote:
All the miscellaneous items have been shipped USPS Priority, nominally arriving on Friday except for one shipment to BC, Canada.? Maybe 3 weeks for that one.
Items still looking for a new home listed below.
Rob, NC0B
?
?
Here are some filters and items available.
$75.00 plus $10.00 shipping unless otherwise? noted.
?
PayPal to rob@...???? (Not this email address)
?
Consider it house cleaning on my part.
?
Two 500 Hz Piezo Tech
One 4000 Hz Piezo Tech AM filter
One 125 Hz INRAD
1000 Hz for TR-7 Drake
500 Hz OEM? $40
2.1 kHz Fox Tango $40
?
Misc.
Two parts R-4Cs?
?
Rob, NC0B
|
Re: TR-7 missing digit's on display
When you say "almost" it sounds like the displays are on and correct but DIM. If cleaning the connectors doesn't fix the issue, note that there is a 7805 regulator that only feeds the displays. It has the usual 10uf electrolytic cap on its output and probably one on its input. Might be time to break out ye old VM and check to see if you have 5 volts on the output of that regulator. I suspect those electrolytic caps may have finally given up.
|
Re: Misc parts at NC0B's QTH
All the miscellaneous items have been shipped USPS Priority, nominally arriving on Friday except for one shipment to BC, Canada.? Maybe 3 weeks for that one.
Items still looking for a new home listed below.
Rob, NC0B
?
toggle quoted message
Show quoted text
From: [email protected] [mailto:[email protected]]
On Behalf Of Rob Sherwood
Sent: Wednesday, January 17, 2024 9:09 PM
To: [email protected]
Subject: [DRAKE-RADIO] Misc parts at NC0B's QTH
?
Here are some filters and items available.
$75.00 plus $10.00 shipping unless otherwise? noted.
?
PayPal to rob@...???? (Not this email address)
?
Consider it house cleaning on my part.
?
Two 500 Hz Piezo Tech
One 4000 Hz Piezo Tech AM filter
One 125 Hz INRAD
1000 Hz for TR-7 Drake
500 Hz OEM? $40
2.1 kHz Fox Tango $40
?
Misc.
Two parts R-4Cs?
?
Rob, NC0B
|
Re: TR-7 missing digit's on display
Check the connectors on the top of the board
From: "K8CCA" <echapm4@...> To: "DRAKE-RADIO" < [email protected]> Sent: Tuesday, January 23, 2024 3:00:50 AM Subject: [DRAKE-RADIO] TR-7 missing digit's on display
Hey guys, went to use my TR-7 last night and found that the digital display was almost completely out, all the digits except the most right where gone.? It worked fine last time I used it, perhaps in September.? I pulled the rig out of the lineup and removed the display board, thinking cleaning the pins would fix it.? Put it back in and still the same.? I guess I should have pulled all the boards?? Am I on the right path or is there some other issue? Any and all advice appreciated.
Thanks,
Eric
K8CCA
|
Drake FS4 RF tune decal for R4 series receivers
When the FS4 is attached to a Drake Receiver , Drake supplied a decal to adhere to the RF tuning knob to help find the proper peak areas quickly. I am looking for a decal, copy or excellent image I can have a decal made. ?
I appreciate any help you can provide. ?
Ray. N3AQ
|
TR-7 missing digit's on display
Hey guys, went to use my TR-7 last night and found that the digital display was almost completely out, all the digits except the most right where gone.? It worked fine last time I used it, perhaps in September.? I pulled the rig out of the lineup and removed the display board, thinking cleaning the pins would fix it.? Put it back in and still the same.? I guess I should have pulled all the boards?? Am I on the right path or is there some other issue? Any and all advice appreciated.
Thanks,
Eric
K8CCA
|
Re: Drake W4 wattmeter woes...
Please note that #75697 and #75696 was sent some days ago, but just turned up today.
--
best regards,
Glenn, OZ1HFT
|
Re: Drake W4 wattmeter part three
Mike
I placed 2 each 1N295's in the mail to you this AM. I think these are the spare 2 I bought for my W4 when I was having problems.? Enjoy
73? Bob
|
Re: Drake W4 wattmeter part three
I'm fortunate in that this set seems to be unmolested AND has BOTH 500 Hz CW filters. Not bad for $80 at NEARfest a couple of years ago!
Steve Wedge, W1ES/4
Time flies like an arrow.? Fruit flies like a banana.
Sent with Proton Mail secure email.
toggle quoted message
Show quoted text
On Monday, January 22nd, 2024 at 7:20 PM, jerry-KF6VB <jerry@...> wrote: On 2024-01-22 14:36, Steve Wedge, W1ES/4 via groups.io wrote:
Yeah, we all have "those projects". I'm finally tearing into a
TS-830S
*** I loved my TS-830S. Best radio I'd ever had. My only problem
with it
was the crappy circuit boards. They were not very tolerant of rework.
- Jerry, KF6VB
|
I need to get some of my volume cut down to a more reasonable level.
I have one C Line cabinet.? This fits either the T-4XC or R-4C, as Drake moved all side jacks and controls off of the sides -- enabling them to use just one set of cabinet bottoms.? No dents, some adhesives evident in various places and it looks like it had a minor respray.? No feet.? $30
R-4B cabinet.? Bottom has some denting around where the feet were and there are some marks/scrapes, here and there.? Not bad and I've seen much worse. Silkscreen on the side is good.? No feet.? $30
Prices are plus shipping and I use Pirate Ship for either USPS or UPS (your choice)? Either of these are very restorable.
73,
Steve Wedge, W1ES/4
Time flies like an arrow.? Fruit flies like a banana.
Sent with secure email.
|
Re: Drake W4 wattmeter woes...
Hi Mike
Search for 1N295 here:
https://www.nteinc.com/search.php
Found NTE109.
Datasheet NTE109:
https://www.nteinc.com/specs/100to199/pdf/nte109.pdf
How to find NTE distributors:
https://www.nteinc.com/2-ways-to-purchase.php
You can a few maximum ratings on 1N295 here:
https://english.electronica-pt.com/components-cross-reference?ref=1n295
--
best regards,
Glenn, OZ1HFT
|
Re: Drake W4 wattmeter woes... 1N295...
Hi Mike
Goto:
Search for 1N295 - NTE109 can replace 1N295.
NTE109 datasheet:
https://www.nteinc.com/specs/100to199/pdf/nte109.pdf
How to purchase:
--
best regards,
Glenn, OZ1HFT
|
Re: Drake W4 wattmeter part three
On 2024-01-22 14:36, Steve Wedge, W1ES/4 via groups.io wrote: Yeah, we all have "those projects". I'm finally tearing into a
TS-830S *** I *loved* my TS-830S. Best radio I'd ever had. My only problem with it was the crappy circuit boards. They were not very tolerant of rework. - Jerry, KF6VB
|
Re: Drake W4 wattmeter part three
Yeah, we all have "those projects".? I'm finally tearing into a TS-830S that I thought had RF switching issues.? It turned out that the meter switch wasn't making contact.? I took it apart and cleaned it and it's now working but has some other messed up things going on.
Steve Wedge, W1ES/4
Time flies like an arrow.? Fruit flies like a banana.
Sent with secure email.
On Monday, January 22nd, 2024 at 5:22 PM, mike bryce <prosolar@...> wrote:
Yeah, over the years, I¡¯ve collected quite a few. I¡¯ve never really did anything with them other than line them up on a shelf and look at them. With the weather so crappy, I decided to take them down and test them.?
I have a couple of WH7 watt meters and one was really out of calibration. It calibrated without issue.?
Heathkit loved to build ¡®oscopes¡.. Drake loved to build wattmeters!
mike wb8vge On Jan 22, 2024, at 5:18 PM, Steve Wedge, W1ES/4 via < w1es@...> wrote:
Mike, I'm curious.? How did you get so many bad ones?? Hamfest find?
73,
|
Re: Drake W4 wattmeter part three
Yeah, over the years, I¡¯ve collected quite a few. I¡¯ve never really did anything with them other than line them up on a shelf and look at them. With the weather so crappy, I decided to take them down and test them.?
I have a couple of WH7 watt meters and one was really out of calibration. It calibrated without issue.?
Heathkit loved to build ¡®oscopes¡.. Drake loved to build wattmeters!
toggle quoted message
Show quoted text
On Jan 22, 2024, at 5:18 PM, Steve Wedge, W1ES/4 via < w1es@...> wrote:
Mike, I'm curious.? How did you get so many bad ones?? Hamfest find?
73,
|
Re: Drake W4 wattmeter part three
Mike, I'm curious.? How did you get so many bad ones?? Hamfest find?
73,
Steve Wedge, W1ES/4
Time flies like an arrow.? Fruit flies like a banana.
Sent with secure email.
On Monday, January 22nd, 2024 at 4:53 PM, mike bryce <prosolar@...> wrote:
here is one I¡¯m working on, and I¡¯m fairly confident it¡¯s not a Drake factory meter.
Mike, wb8vge? On Jan 21, 2024, at 2:11 PM, Jim Shorney < jimNU0C@...> wrote:
Yeah, there were some surplus Motorola repeater rack meters floating around eBay for a while that were almost the correct Jewell version but were more sensitive. I bought one, added an external shunt, and rescued a WV4. It's possible that someone got ahold of one of those and didn't understand the concept.
73
-Jim
NU0C
|
Good work getting it going Joe.
The 2NT/2C really is a sweet combination
John K5MO
On Mon, Jan 22, 2024 at 2:58?PM Joe KI5O < ki5ojoe@...> wrote: I was running into more problems this afternoon on the 2NT. Relay was not releasing. Checked the voltage to ensure the cutoff was happening. Slightly lifting on the arm stretched it back into the correct position and QSK and delay changes are better than ever. Looking like the relay was deformed a bit by previous owner pressi down on it trying to get it working.
I wonder if the previous owner sold it because of this problem? Anyhow I just wanted to document in case somebody else comes across this at another time. The two problems with inoperative 2NT delay were bad 15M potentiometer (thanks Bob!) and the relay arm needing slight adjustment.
Joe ki5o?
|
Re: Drake W4 wattmeter part three
here is one I¡¯m working on, and I¡¯m fairly confident it¡¯s not a Drake factory meter.
Mike, wb8vge?
toggle quoted message
Show quoted text
On Jan 21, 2024, at 2:11 PM, Jim Shorney < jimNU0C@...> wrote:
Yeah, there were some surplus Motorola repeater rack meters floating around eBay for a while that were almost the correct Jewell version but were more sensitive. I bought one, added an external shunt, and rescued a WV4. It's possible that someone got ahold of one of those and didn't understand the concept.
73
-Jim
NU0C
|
I was running into more problems this afternoon on the 2NT. Relay was not releasing. Checked the voltage to ensure the cutoff was happening. Slightly lifting on the arm stretched it back into the correct position and QSK and delay changes are better than ever. Looking like the relay was deformed a bit by previous owner pressi down on it trying to get it working.
I wonder if the previous owner sold it because of this problem? Anyhow I just wanted to document in case somebody else comes across this at another time. The two problems with inoperative 2NT delay were bad 15M potentiometer (thanks Bob!) and the relay arm needing slight adjustment.
Joe ki5o?
|
K8CCA
Rob Sherwood