Tom -
What happens if you turn the RF GAIN full CCW??
73, Garey - K4OAH
Glen Allen, VA
Drake 2-B, 2-C/2-NT, 4-A, 4-B, C-Line
and TR-4/C Service Supplement CDs
<www.k4oah.com>
[email protected] wrote:
Hi Gang,
I have a nice TR-3 that looks, and works well with one caveat. I
can't get the S Meter to deflect past S2.
So far I have swapped all the tubes involved??? Removed the meter,
and it tests OK, so far, I haven't found any resistors out of spec.
Tried changing the value of the shunt resistor, which is connected to
the zeroing pot. Not much help there. I don't see much change in the
voltage at either the receive IF, or the transmit IF. I understand
that the TR-4 has a meter sensitivity pot, whereas the TR-3 has only
the zero pot.
Does anyone have any other ideas?
Thanks for reading this Tom, WD8JPP
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