I acquired this TR-4C from my father a decade ago, W9LKZ (SK). I've rebuild the power supply with great success a few years ago. Now I have a problem with the xmtr keying circuit. After allowing the rig to warm up for half an hour or so when I key the mic and then release it the transmitter section remains in the transmit mode. Not a whole lot of fun... I also found this 4 section cap # C145. Where can I find a replacement for this device. I love these old glow in the dark rigs, also keeps the shack warm in the winter. I have also seen/heard of a mod to put a fan over the final amp cage. What voltage is being used to power the fan and how big of a fan?
Thanks for all the other good info I've gleaned from this site Paul Strickland WB9SUG
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