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Model 90 Speaker field coil repair
Radioroslyn
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Posts: 7,300
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City: Roslyn Pa
#10

12-02-2016, 05:42 PM
Resistance should be ok @ 1k. The fc isn't used to develop the bias voltages. May have to dink around with the values of the filter caps to get rid of any residual hum and get the HV close to spec.
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
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Messages In This Thread
Model 90 Speaker field coil repair - by rrova - 11-30-2016, 09:12 PM
RE: Model 90 Speaker field coil repair - by rrova - 11-30-2016, 10:45 PM
RE: Model 90 Speaker field coil repair - by rrova - 11-30-2016, 11:31 PM
RE: Model 90 Speaker field coil repair - by rrova - 12-01-2016, 05:39 PM
RE: Model 90 Speaker field coil repair - by rrova - 12-01-2016, 06:48 PM
RE: Model 90 Speaker field coil repair - by rrova - 12-02-2016, 04:43 PM
RE: Model 90 Speaker field coil repair - by Radioroslyn - 12-02-2016, 05:42 PM
RE: Model 90 Speaker field coil repair - by rrova - 12-03-2016, 05:16 AM



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