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Philco 70 volume issue
Ron Ramirez
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City: Ferdinand State, Province, Country: Indiana
#16

02-11-2018, 12:22 AM
Link to schematic:
http://www.philcoradio.com/images/phorum/schem/70a.jpg
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Ron Ramirez
Ferdinand IN
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morzh
Odobenus rosmarus
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City: Jackson, NJ
#17

02-11-2018, 12:27 AM
Ok, in this one it is #37.
People who do not drink, do not smoke, do not eat red meat will one day feel really stupid lying there and dying from nothing.
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Radiowilbur
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#18

02-11-2018, 01:21 PM
The big wirewound resistor checks out.
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Radioroslyn
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#19

02-11-2018, 04:30 PM
So what did the result of post 10 turn out??
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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Radiowilbur
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#20

02-11-2018, 07:25 PM
Radio off, volume at max, I read about 10 ohms from antenna clip to chassis......
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Radiowilbur
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#21

02-11-2018, 08:23 PM
....My socket voltages are close, except for the 2nd Detector. My plate voltage and screen grid voltages are about double what the printout states.
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Radioroslyn
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City: Roslyn Pa
#22

02-11-2018, 10:38 PM
Well sounds like the ant coil is ok. As for the hv on the detector tube could be a high cathode resistor #24  51k or a weak 24A tube in that circuit.
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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