Sure thing. First, get a scope to sniff the carrier wave—use a cheap SDR like an RTL‑SDR and a software that shows you the raw IQ data. Look for the carrier frequency, note any modulation format, and record the raw samples. If the signal’s weak, line‑of‑sight matters: bring a dish or a directional antenna and aim for the tower. Next, check the transmitter power supply—old towers often use a 115‑V transformer that’s busted. Grab a multimeter, test the mains, then test the transformer’s primary and secondary windings for continuity. If the transformer’s fine, replace any fuses or breakers in the feed line. For the actual transmitter, if it’s a simple AM/FM set, open the chassis, clean up any corroded contacts, and replace burnt capacitors or tubes. Finally, rebuild the bias circuit: use a small breadboard to replicate the old bias network, test with a signal generator, tweak the bias voltage until the carrier output matches the recorded samples. Once you’ve got a clean carrier, you can re‑tune the receiver, or if you want to broadcast, just crank the power back up and you’ll have that old tower singing again. Good luck, and remember to keep an eye on the ripple—any stray 60‑Hz hum will kill the quality.

Sounds solid—just double‑check that no stray capacitors are leaking and keep the ground clean. Once that carrier pops back, you’ll hear if the old tower’s breathing again. Good luck, and keep the tools at arm’s length—you know what will happen if you get too curious.