Re: Misc parts at NC0B's QTH
Hi Joe,
?
Here is what I said to an earlier question as to the parts unit.? My goal is for them to go away.
?
One parts R-4C should be considered only having a case, the power transformer and a PTO.? Price would be shipping only.
?
The other parts R-4C? is a 16K S/N with a case, and has been weirdly modified to switch in 3 AM filters, 3, 4 and 6 kHz, plus a 1.5 kHz that I am guessing is an SSB filter. Odd-ball knobs.? Any reasonable offer
plus shipping.
?
Rob
?
?
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From: [email protected] [mailto:[email protected]]
On Behalf Of Joe - W7RKN
Sent: Wednesday, January 24, 2024 10:24 AM
To: [email protected]
Subject: Re: [DRAKE-RADIO] Misc parts at NC0B's QTH
?
Hi Rob,
?
Out of curiosity…..What can you tell me about? the 2 parts R4C’s you have…….(Price, etc.)
?
Joe – W7RKN
?
?
Misc.
Two parts R-4Cs?
?
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Re: Misc parts at NC0B's QTH
Hi Rob, ? Out of curiosity…..What can you tell me about? the 2 parts R4C’s you have…….(Price, etc.) ? Joe – W7RKN ? ? Misc. Two parts R-4Cs? ?
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Re: Misc parts at NC0B's QTH
From: [email protected] [mailto:[email protected]]
On Behalf Of Rob Sherwood
Sent: Wednesday, January 24, 2024 9:09 PM
To: [email protected]
Subject: [DRAKE-RADIO] Misc parts at NC0B's QTH
?
Here are the remaining filters available.
$75.00 plus $10.00 shipping unless otherwise? noted.
?
PayPal to rob@...???? (Not this email address)
?
Two 500 Hz Piezo Technology for R-4C
1000 Hz for TR-7 Drake? SL-1000
500 Hz OEM? $40 (tests perfect)
2.1 kHz for TR-7 Fox Tango $40 (Has a solder blob on the case)
?
Misc.
Two parts R-4Cs?
?
Rob, NC0B
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Re: Misc parts at NC0B's QTH
Hi Paul,
?
The INRAD filter is yours.? PayPal as per below.
?
73, Rob, NC0B
?
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From: [email protected] [mailto:[email protected]]
On Behalf Of Paul Dulaff via groups.io
Sent: Tuesday, January 23, 2024 9:10 PM
To: [email protected]
Subject: Re: [DRAKE-RADIO] Misc parts at NC0B's QTH
?
Hi Rob
If the 125 Hz INRAD is not taken, I can take that for my R4C.
Paul - W2NMI
?
On 1/17/2024 11:09 PM, Rob Sherwood wrote:
Here are some filters and items available.
$75.00 plus $10.00 shipping unless otherwise? noted.
AS IS, but if they don’t work I will refund the purchase less shipping.
PayPal to rob@...???? (Not this email address)
?
Consider it house cleaning on my part.
?
250 Hz Piezo Tech
500 Hz Piezo Tech
500 Hz INRAD
125 Hz INRAD
1000 Hz for TR-7 Drake
500 Hz Drake
125 Hz Sherwood $100
CF-2K/16 w/ bracket Sherwood $100
500 Hz OEM? $40
2.1 kHz Fox Tango $40
?
Misc.
100 kHz calibrator $30
Noise blanker? $50?
?
Rob, NC0B
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Re: L75 basic Question band markings question
You don’t have separate specific band selections in this amp. Those markings are the range over which each particular position will work well.?
Thus, for example, the 40 meter position covers the range shown by the inner scale, 6.5 to 10 MHz.
Gary
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Please don't laugh to my question but I see, on the band knob of my little L75 amp, apart from the basic Ham Bands, the markings 6.5, 10, 16, 24.
Those are not selectable. Are those to be enabled my some kind of factory mod? or were those markings there only as a reference of what ranges could be adjusted on the main positions by adjusting the coils?
Rob
YS1RS
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L75 basic Question band markings question
Please don't laugh to my question but I see, on the band knob of my little L75 amp, apart from the basic Ham Bands, the markings 6.5, 10, 16, 24.
Those are not selectable. Are those to be enabled my some kind of factory mod? or were those markings there only as a reference of what ranges could be adjusted on the main positions by adjusting the coils?
Rob
YS1RS
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I am looking to buy a split rear chassis TR-7. Front panel must be excellent. Don't require the NB.?
Tnx,
Dale W4OP
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Looking for L75 amp meter replacement.
My L75 amp developed a problem on the meter. No longer responds.
Have checked it and the signal is reaching it.
The internal circuit on the meter is simply open.
Have look for replacements but no longer in production.
Any suggestions where could I find one?
Is this meter the same used on the L7? I don't have an L7 so no idea.
Last resource would be to buy a Chinese meter and install it on an external box. :-( sad option and the last.
Hate to modify equipment. Love to see things original and clean, in all its glory.
Open to ideas and suggestions.
Rob
YS1RS
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Re: Outer Coaxial Jacket Removal for a Long Length
Thanks to all responding. ?I found the tool, a new GC brand on Ebay in Pennsylvania, not far away. ?A better understanding of what I was looking for helped much. ?As a side note, I’ve decided to use RG-11 for this seamless feed-system/antenna (vertical polarized), after calculating the power handling capability of the Belden 8279 — pret-ty small.
Take care.
73,
Michael, N4KZO
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Re: Misc parts at NC0B's QTH
Hi Rob
If the 125 Hz INRAD is not taken, I can take that for my R4C.
Paul - W2NMI
On 1/17/2024 11:09 PM, Rob Sherwood
wrote:
toggle quoted message
Show quoted text
Here are some filters and items available.
$75.00 plus $10.00 shipping unless
otherwise? noted.
AS IS, but if they don’t work I will refund
the purchase less shipping.
PayPal to rob@...???? (Not
this email address)
?
Consider it house cleaning on my part.
?
250 Hz Piezo Tech
500 Hz Piezo Tech
500 Hz INRAD
125 Hz INRAD
1000 Hz for TR-7 Drake
500 Hz Drake
125 Hz Sherwood $100
CF-2K/16 w/ bracket Sherwood $100
500 Hz OEM? $40
2.1 kHz Fox Tango $40
?
Misc.
100 kHz calibrator $30
Noise blanker? $50?
?
Rob, NC0B
|
Re: CORRECTION. [DRAKE-RADIO] Outer Coaxial Jacket Removal for a Long Length
I should have said soldering GUN. ?The tip is also excellent for cutting double braided dacron or nylon rope.
On Tuesday, January 23, 2024 at 09:34:20 PM EST, Evan via groups.io <k9sqg@...> wrote:
I've always used a soldering iron for this type of project. ?There is a "plastic cutting tip" available that has a flattened nose ideally suited for such applications.
On Tuesday, January 23, 2024 at 04:41:19 PM EST, Michael Smith via groups.io <tw8kcabpilot@...> wrote:
I would like to put up a vertical sleeved 1/2 wave dipole, using Belden 8279, 75 ohm coax. ?I have been pondering a good way to remove approximately 11 contiguous feet of the outer jacket, of course without nicking the copper shield, but haven’t come to any ideas, that I sense will work well. ?The Wireman and DXE could offer no tools or procedure. ?A sharp blade needs to be run along the length of the coax, while maintaining a precise depth. ?The coax OD is 0.22 inches and the outer jacket wall thickness is 0.074 inches, polyethylene. ?Perhaps a small V-block could be used to stabilize the round coax in position, while holding a knife blade pressed on the outer jacket and pushing down on the cable at the same time to keep the coax in the V, and pulling the coax through; I would not cut completely through the jacket when doing this, but after cutting the entire length, tear the outer jack off. I think I could do this with two hands. ?Any ideas?
Thank you.
73, Michael Smith, N4KZO
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Re: Outer Coaxial Jacket Removal for a Long Length
I've always used a soldering iron for this type of project. ?There is a "plastic cutting tip" available that has a flattened nose ideally suited for such applications.
On Tuesday, January 23, 2024 at 04:41:19 PM EST, Michael Smith via groups.io <tw8kcabpilot@...> wrote:
I would like to put up a vertical sleeved 1/2 wave dipole, using Belden 8279, 75 ohm coax. ?I have been pondering a good way to remove approximately 11 contiguous feet of the outer jacket, of course without nicking the copper shield, but haven’t come to any ideas, that I sense will work well. ?The Wireman and DXE could offer no tools or procedure. ?A sharp blade needs to be run along the length of the coax, while maintaining a precise depth. ?The coax OD is 0.22 inches and the outer jacket wall thickness is 0.074 inches, polyethylene. ?Perhaps a small V-block could be used to stabilize the round coax in position, while holding a knife blade pressed on the outer jacket and pushing down on the cable at the same time to keep the coax in the V, and pulling the coax through; I would not cut completely through the jacket when doing this, but after cutting the entire length, tear the outer jack off. I think I could do this with two hands. ?Any ideas?
Thank you.
73, Michael Smith, N4KZO
|
Re: Outer Coaxial Jacket Removal for a Long Length
I wouldn't bother. The radio waves don't care. Ask anyone in the end-fed half wave crowd. They know how easy it is to make the coax radiate. What you will need is a common mode choke a quarter wave down the shield. 73 -Jim NU0C On Tue, 23 Jan 2024 13:41:17 -0800 "Michael Smith via groups.io" <tw8kcabpilot@...> wrote: I would like to put up a vertical sleeved 1/2 wave dipole, using Belden 8279, 75 ohm coax. ?I have been pondering a good way to remove approximately 11 contiguous feet of the outer jacket, of course without nicking the copper shield, but haven’t come to any ideas, that I sense will work well. ?The Wireman and DXE could offer no tools or procedure. ?A sharp blade needs to be run along the length of the coax, while maintaining a precise depth. ?The coax OD is 0.22 inches and the outer jacket wall thickness is 0.074 inches, polyethylene. ?Perhaps a small V-block could be used to stabilize the round coax in position, while holding a knife blade pressed on the outer jacket and pushing down on the cable at the same time to keep the coax in the V, and pulling the coax through; I would not cut completely through the jacket when doing this, but after cutting the entire length, tear the outer jack off. I think I could do this with two hands. ?Any ideas?
Thank you.
73, Michael Smith, N4KZO
-- 73 -Jim NU0C
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Re: Outer Coaxial Jacket Removal for a Long Length
I have really good luck using a sharp box cutter to first rotate the coax under the knife, pressing hard enough to cut the insulation but not hard enough to cat the braid. Then I cut a lengthwise cut in the same way. The insulation rolls off comfortably leaving the braid undamaged. I have stripped several feet from a piece of coax using this method.
Of course, use a knife that is sharp enough to require care during use.
Gary
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On Jan 23, 2024, at 7:36?PM, KL7AM <w7apm@...> wrote:
There is a metal tool used for stripping Romex type wire that ma work well for you. Kind of a narrow clamshell looking thing that is all metal and very reasonably priced Search this on Amazon Gardner Bender CR-100 4-Inch Romex Cable Ripper, Metallic
From:?"Barry" < n4buq@...> To:?"DRAKE-RADIO" < [email protected]> Sent:?Tuesday, January 23, 2024 4:31:35 PM Subject:?Re: [DRAKE-RADIO] Outer Coaxial Jacket Removal for a Long Length
On the page Warren posted, this tool showed up:
Looks like it might work? 73, Barry - N4BUQ
From:?"NI5L" <ni5l@...>
To:?"DRAKE-RADIO" <[email protected]>
Sent:?Tuesday, January 23, 2024 7:24:32 PM
Subject:?Re: [DRAKE-RADIO] Outer Coaxial Jacket Removal for a Long Length
Something like this would work.
--?
73 de NI5L
Warren
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Re: TR-7 missing digit's on display
The DR7 is such a fragile board, a true PITA to work on, I would leave it alone if it works. Those two capacitors are only there to prevent oscillation of the regulator and serve no function in offering the correct voltages on either end of the regulator, unless shorted of course.?
A working DR7 is a DR7 best left alone!
Gary
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On Jan 23, 2024, at 4:15?PM, Steven KE2AXS <sosborne8270@...> wrote:
I believe those Rubycon caps are originals. I have seen Richy and Rubcon caps in a lot of Drake gear. Thats is what was in my TR7 when I replaced them 5 years ago. Even back then they had considerable leakage. I see some 1979 date codes on your chips. ~44 years for an electrolytic cap is probably pushing your luck.
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Re: Outer Coaxial Jacket Removal for a Long Length
There is a metal tool used for stripping Romex type wire that ma work well for you. Kind of a narrow clamshell looking thing that is all metal and very reasonably priced Search this on Amazon Gardner Bender CR-100 4-Inch Romex Cable Ripper, Metallic
From: "Barry" <n4buq@...> To: "DRAKE-RADIO" < [email protected]> Sent: Tuesday, January 23, 2024 4:31:35 PM Subject: Re: [DRAKE-RADIO] Outer Coaxial Jacket Removal for a Long Length
On the page Warren posted, this tool showed up:
Looks like it might work? 73, Barry - N4BUQ
From: "NI5L" <ni5l@...>
To: "DRAKE-RADIO" <[email protected]>
Sent: Tuesday, January 23, 2024 7:24:32 PM
Subject: Re: [DRAKE-RADIO] Outer Coaxial Jacket Removal for a Long Length
Something like this would work.
--
73 de NI5L
Warren
|
Re: Outer Coaxial Jacket Removal for a Long Length
On the page Warren posted, this tool showed up:
Looks like it might work?
73, Barry - N4BUQ
From: "NI5L" <ni5l@...>
To: "DRAKE-RADIO" <[email protected]>
Sent: Tuesday, January 23, 2024 7:24:32 PM
Subject: Re: [DRAKE-RADIO] Outer Coaxial Jacket Removal for a Long Length
Something like this would work.
--
73 de NI5L
Warren
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Re: Outer Coaxial Jacket Removal for a Long Length
Something like this would work.
--
73 de NI5L
Warren
|
Re: Outer Coaxial Jacket Removal for a Long Length
HI Mike…. ? Contact your closest electrical contractor and talk to one? of their technicians…they have a tool, that is adjustable to remove wire jackets from all sizes of wires. Give him/her a ?pack of beer or soda and he would probably strip a 500 foot roll of coax for you!? J? (Well..maybe no-o-t-t-t that much…but….!!) ? Joe – W7RKN ? From: [email protected] [mailto:[email protected]] On Behalf Of Michael Smith via groups.io
Subject: [DRAKE-RADIO] Outer Coaxial Jacket Removal for a Long Length ? I would like to put up a vertical sleeved 1/2 wave dipole, using Belden 8279, 75 ohm coax. ?I have been pondering a good way to remove approximately 11 contiguous feet of the outer jacket, of course without nicking the copper shield, but haven’t come to any ideas, that I sense will work well. ?The Wireman and DXE could offer no tools or procedure. ?A sharp blade needs to be run along the length of the coax, while maintaining a precise depth. ?The coax OD is 0.22 inches and the outer jacket wall thickness is 0.074 inches, polyethylene. ?Perhaps a small V-block could be used to stabilize the round coax in position, while holding a knife blade pressed on the outer jacket and pushing down on the cable at the same time to keep the coax in the V, and pulling the coax through; I would not cut completely through the jacket when
|
Re: TR-7 missing digit's on display
I believe those Rubycon caps are originals. I have seen Richy and Rubcon caps in a lot of Drake gear. Thats is what was in my TR7 when I replaced them 5 years ago. Even back then they had considerable leakage. I see some 1979 date codes on your chips. ~44 years for an electrolytic cap is probably pushing your luck.
|
Rob Sherwood
Roberto - YS1RS
Jim Shorney
Warren NI5L