I meant "fact", not "face". Ugh. Friday night fingers at work.
Barry - N4BUQ
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Apologies. I wasn't thinking of the face that Mark has a TR-4C, not a plain
TR-4. R48 is indeed the correct resistor in the C model.
73,
Barry - N4BUQ
Did you possibly mean R148?
Also, the signal would go from that resistor through C12 to the grid.
73,
Barry - N4BUQ
Here is your circuit. The PTO feeds the grid of V1B via R48. I think I would
look at R48 first, then make some checks around V1.
Disclaimer: I have not been inside any TR4 in decades.
On Fri, 18 Apr 2025 16:25:17 -0700
"Mark N2DMI via groups.io" <markkiziuk1@...> wrote:
I connected the wires back up to the PTO and again no signals!
I then put the spectrum analyzer close to the PTO signal output to see if the
signal was being loaded down and I still have signal output that tracks the
PTO.
Out of curiosity I connected my working DD-103 to the jones connector and it
reads 9Mhz.
--
73
-Jim
NU0C
