On Sun, 5 Jun 2011 20:43:42 -0500, David wrote:
>Yes. Look them up. Have had one installed for 15 + years.
One what? Sherwood or Velleman?
73
-Jim
--
Ham Radio NU0C
Lincoln, Nebraska, U.S.S.A.
TR7/RV7/R7A/L7, TR6/RV6, T4XC/R4C/L4B, NCL2000, SB104A, R390A, GT550A/RV550A,
HyGain 3750, IBM P
On Mon, 6 Jun 2011 14:22:07 +1200, jeffers...@xtra.co.nz wrote:
>The TR-4C does receive but, as the circuitry was designed using a Remote
>Cutoff Pentode, is the use of a Sharp Cutoff Pentode degrading the performance
>of the Rig ?
>Should I replace the 12AU6 with a 12BA6 or leave well enough a
Hello All,
I recently acquired a Drake TR-4C SN 39893.
On removing the top cover, for a tentative inspection, I discovered that V7,
the RF Amp, had been changed from a 12BA6 (Remote Cutoff Pentode) to a
Telefunken 12AU6 (Sharp Cutoff Pentode). According to the RCA Receiving Tube
Manual both tub
Bud,
It must be your mail program or something. I'm not getting duplicates.
73,
Don, WB5HAK___
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Yes. Look them up. Have had one installed for 15 + years.
David Assaf, III
W5XU
-Original Message-
From: drakelist-boun...@zerobeat.net [mailto:drakelist-boun...@zerobeat.net]
On Behalf Of Jim Shorney
Sent: Sunday, June 05, 2011 6:51 PM
To: Drakelist@zerobeat.net
Subject: Re: [Drakelist
Does Sherwood manufacture their own crystals? Is Inrad a separate entity?
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Am I the only one who is getting lots of duplicate posts from the list
,(same sent times??? May be my stupid mail program??
Bud W0HG
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On Sun, 5 Jun 2011 13:13:08 -0700 (PDT), Neil M Califano wrote:
>Does Sherwood or anyone offer an improved audio amp for the R-4C? Does the new
>amp draw more current?
Velleman offers an audio amp kit that is very close to the Sherwood design.
It's a hi-fi amp, so the circuit should be tweaked
I have the following items available, shipping extra:
Sherwood AMP-4 audio amplifier upgrade for R-4C: $30. Two available, used
perfect condition.
Sherwood R-4C 600 Hz 1st I.F. Roofing Filter, new never installed: $90
Sherwood R-4C Two-filter switching with PC board & RF relays with socke
www.sherweng.com and the link for R4C kits is on the home page.
73,
Don, WB5HAK
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Does Sherwood or anyone offer an improved audio amp for the R-4C? Does the new
amp draw more current?
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Ops, forgot to send to the list in case others are interested.
Begin forwarded message:
> From: Dino Papas
> Date: Jun 05, 2011 0859 AM EDT
> To: posta_libero
> Subject: Re: [Drakelist] Drake 2B
>
> Sure, Garey has a CD available for the TR-4 as well:
>
> http://www.k4oah.com/Drake_new7/T
Man, you are quick, Dino. I was typing the very same thing as I saw your
message. You just can't beat Garey's CD's for answering Drake questions!!!
Also, Joe, for "intermittents", I would suggest checking the bandswitch on the
2B. DeOxit on the contacts, or at the very least work the bandswi
Joe - you may want to check out Garey's CD service manual for the 2B at:
http://www.k4oah.com/Drake_new7/2-B.html
73 - Dino KL0S
On Jun042011, at 2346 PM, Joe Connor wrote:
> Today, I picked up a very beat-up Drake 2B at a garage sale, and I need some
> help and advice:
>
> 1. The set work
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