Steve, off hand, I'd say incerting any "non-aligned" board in the signal chain
will need to be aligned with the rest of the radio. PS if you have an extra
version 2 board to part with, I'd be interested.
Good luck,
David
Wd9cmd
----- Original Message -----
From: [EMAIL PROTECTED]
To: [email protected]
Sent: Monday, June 09, 2008 10:28 PM
Subject: Re: [drakelist] TR7 2nd IF Audio board: redux and question on R1136
I have S/N 6951 and it has a version 1 IF board. I have tried 2 different
version 2 boards ( which I know are in good working order) and they work but I
cannot get the s-meter to adjust: with the version one board my radio reads S9
at 28 MHz but both version 2 boards read S8 or a little lower when reading the
calibrator signal. Do I have to adjust R1136 receiver sensitivity to get all
boards to react the same?
Steve KD2ED
In a message dated 5/25/2008 11:59:08 A.M. Eastern Daylight Time, [EMAIL
PROTECTED] writes:
Hi,
Does anyone know about when, by serial number, Drake went to the newer
version 2nd IF-Audio board?
As much time has passed, I know that unless one is sure his/her radio is
original, it may be hard to tell due to possible board changes before the
current owner. But does someone out there has a good idea?
FYI, my current TR7 is SN, 5392, split rear panel, late version NB, Late
version pre-driver, early version digital control board and early version
IF/Audio. I may be wrong, but the NB is likely a newer addition.
I did notice that my IF/audio board has been repaired, an IC replaced and a
poor soldering job that I had to clean up. I guess, bottom line, I'm trying
to figure out if my audio board is original to the radio or not.
Thanks,
David
WD9CMD
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