Garey Barrell <[EMAIL PROTECTED]> made an utterance to the drakelist gang
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OK. That's Version 1. V7 circuit is the same though. Voltage divider
on Pin 6, screen of V7, voltage should be ~100V R or T. Likely not the
current problem though. Perhaps you were looking at Pin 5?
You say you have signal to the grid of V6. Is that ON Pin 2 or ?? Are
you looking with a scope or ??
[EMAIL PROTECTED] wrote:
The S/N is 34323.
In a message dated 3/31/2008 3:53:57 P.M. Eastern Daylight Time,
[EMAIL PROTECTED] writes:
Garey Barrell <[EMAIL PROTECTED]> made an utterance to the
drakelist gang
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What serial number unit? Pin 6 should have ~100V R or T.
73, Garey - K4OAH
Glen Allen, VA
Drake 2-B, 4-B, C-Line & TR-4/C Service Supplement CDs
<www.k4oah.com>
[EMAIL PROTECTED] wrote:
> On V7, Pin 7 shows 1.13v receive, 148 transmit and pin 6 shows 250v
> receive and transmit.
>
> In a message dated 3/31/2008 3:34:54 P.M. Eastern Daylight Time,
> [EMAIL PROTECTED] writes:
>
>
> Garey Barrell <[EMAIL PROTECTED]> made an utterance to the
> drakelist gang
>
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> Have you checked voltages on V7? Is it being cut off in
transmit?
>
> 73, Garey - K4OAH
> Glen Allen, VA
>
> Drake 2-B, 4-B, C-Line & TR-4/C Service Supplement CDs
> <www.k4oah.com>
>
>
>
> [EMAIL PROTECTED] wrote:
> > I am still working on my TR-4C. I now have the filter
problem fixed
> > and in fact have the correct signal going all the way to
the 12BY7
> > driver tube. I do not have any signal coming out of the driver
> to the
> > finals. The tube is good and I have substituted another
with no
> > change. The voltages all check good on the 12BY7 except
for pin
> 8. It
> > has the full 250 volts on it so no grid current is flowing
> there. What
> > might cause this? Has any one out there run into this problem
> before
> > and maybe could tell me where I should look for the
problem. As
> always
> > any help would be appreciated. Thanks and 73,
> >
> Terry
> > W8NJR
> >
> >
> >
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