Bob,
All great info, thanks. I will get to VTVM out tonight
and poke around.
Thanks !
73
Gene K1NR
On Thu, 6 Dec 2012 09:15:10 -0800 (PST)
Bob Loving wrote:
> Hi, Gene (and all):
>
> I just went through a VOX problem with one of my TR-4Cs.
> The VOX dropout delay was too short for CW. A
Hi, Gene (and all):
I just went through a VOX problem with one of my TR-4Cs. The VOX dropout delay
was too short for CW. After close inspection of the two units, R135 was 33k, a
value used to set the cutoff bias for the 6FQ7/6CG7 even though I had a 6EV7 in
the rig. My other TR-4C, and a TR-4,
Hello Gene:
Glad it was not the relay. For tubes, unfortunately for the pocketbook,
the best test is to sub in a known good tube. Many times, even a good
tester, will indicate good and a different tube will work.
I would try the 6EV7 as that is what Drake used in the TR-4. I dont
have a C
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