The PHILCO Phorum

Looking for advice.

I'm working on what I believe is a Philco 46-250 Code 125. That's whats on the cabinet label and the chassis. The schematics I found online are labeled as such. A couple of the tubes didn't match the schematic, but I understand that wasn't unusual post-war and the the rectifier and output tubes were replaced with equivalent tubes with different bases.

BUT there are other big differences when I looked under the chassis.





The terminal strip the top arrow points at doesn't exist in the schematics I have. And while the schematics called for a twin 20 mfd filter cap, the radio I have had ENTIRELY different values. The Twin cap was a 50(red)/30(blue) and there was an entirely different (and unlisted) cap between the two arrows (a 40 mfd from the #1 pin of the 7C6 to the terminal strip.



I'm sort of at a loss here......

Are you sure you have the correct schematic? I would move the electrolytics somewhere less crowded if possible and put them on a terminal strip if you can. That chassis looks a bit crowded.

Hi,
One of the reasons for the discrepancy in the diagram regarding the filters is the old version used a dynamic spkr were your set has a pm spkr. W/o the field coil the power requires more capacitance to remove the 60cy hum. You'll rarely see 50/30mf cap in a set w/a dynamic spkr unless in it a replacement w/what was on hand at the time.  Go with a pair of 47mf@160v. The blue beaver cap is a replacement from back in the '60s, remove, dispose, and ignore.