Quote:
Originally Posted by zeno
First new tubes sometimes are bad or go bad soon.
Second a tube tester is NOT 100% especially when at high freqs.
If the EBF89 is the audio out find the G1 pin ind follow that back to
the driver. there will be a cap between the driver plate & output G1.
Change it.
For the tuning noise check the previous tips. Also there is a way the
shaft gets grounded, clean that real good. On TV UHF tuners that
was a big problem.
73 Zeno
LFOD !
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EBF89 is not the output tube, its in the tuner stage.
There is something bizarre I've noticed about this radio, it has two tuning condensers, a smaller one and a larger one, the larger of the two is super loose on the chassis (as in you can wiggle it back and forth with your hands loose) and I checked the mounting screws to see if they were loose and they were as tight as they could get, and I checked the grommets and they weren't melted or deformed or anything. would the main (large) tuning condenser being loose cause some issues with a noisy tuner?