08-28-2018, 03:20 PM
Very important to note, mark, or take pics of any part you remove that has more than 2 wires. Saves a lot of confusion later. Some manufacturers do use the RMA color for transformers but Philco isn't one of them. I agree that the resistance is very low for the pri winding. If you aren't sure that the assumed winding is the pri I would have a look the resistances of the other windings. The two filament winding are going the be very low (a couple of ohms) and the HV winding is going to be much higher (like several hundred ohms). What you are looking for is a winding that is perhaps 10-20 ohms I would think. If you find a winding like that power it w/low voltage from your variac
An 80 tube is an old skool 5Y3 w/an octal base. No fat /skinny pin on the bottom. 2 and 8 are the filament and 4 and 6 are connected to the plates.
An 80 tube is an old skool 5Y3 w/an octal base. No fat /skinny pin on the bottom. 2 and 8 are the filament and 4 and 6 are connected to the plates.
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 it!
Terry
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