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Model 80 Chassis/Tuner Isolation
#7

I would suspect that the oscillator isn't running. Easy way to confirm whether it is is to use another radio (sm transistor set is handy). Set the Philco dial @ 100 (1000kc) and set the transistor set @ 1460kc. Position it near the #36 tube nearest to the ant post. Turn both on and listen to the transistor set for a loud hiss while tuning it around a bit. In a perfect world the signal should be @ 1460kc but it may be off a bit. The osc  frequency = frequency of the dial + the IF frequency (1000kc+460kc= 1460kc)

If you adjust the sensitivity capacitor on the back of the chassis can you get it to squeal from the speaker?

When my pals were reading comic books
I was down in the basement in my dad's
workshop. Perusing his Sam's Photofoacts
Vol 1-50 admiring the old set and trying to
figure out what all those squiggly meant.
Circa 1966
Now I think I've got!

Terry


Messages In This Thread
Model 80 Chassis/Tuner Isolation - by Lewiss - 09-25-2018, 10:10 PM
RE: Model 80 Chassis/Tuner Isolation - by morzh - 09-26-2018, 07:07 AM
RE: Model 80 Chassis/Tuner Isolation - by Lewiss - 09-26-2018, 12:25 PM
RE: Model 80 Chassis/Tuner Isolation - by morzh - 09-26-2018, 12:33 PM
RE: Model 80 Chassis/Tuner Isolation - by Lewiss - 10-06-2018, 02:05 PM
RE: Model 80 Chassis/Tuner Isolation - by Radioroslyn - 10-06-2018, 03:45 PM
RE: Model 80 Chassis/Tuner Isolation - by Lewiss - 10-07-2018, 04:10 PM



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