03-13-2017, 03:52 PM
Hey Dan,
Just push in your 71A and you'll be good to go[Image: http://philcoradio.com/phorum/images/smi...on_lol.gif]
On model 20's pull the spkr plug and measure resistance against each other. All pin should have a max of about 7,000 ohm or less.
Check the primary and secondary of the rf coils and audio driver transformer. RF coil less than 10 ohms audio trans less than 2,000 ohms.
Just push in your 71A and you'll be good to go[Image: http://philcoradio.com/phorum/images/smi...on_lol.gif]
On model 20's pull the spkr plug and measure resistance against each other. All pin should have a max of about 7,000 ohm or less.
Check the primary and secondary of the rf coils and audio driver transformer. RF coil less than 10 ohms audio trans less than 2,000 ohms.
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
![[-]](https://philcoradio.com/phorum/images/bootbb/collapse.png "[-]")
