11-19-2020, 03:27 PM
I found this old thread that has a link to some change info for the 610 - https://philcoradio.com/phorum/showthrea...hlight=610
I just finished a Philco 620 and found differences from the schematics. In reading other topics on the phorum, it seems it was not uncommon for Philco to make changes that weren't always documented. If what you see looks like an original manufacturing installation, I would duplicate it with a new capacitor, resistor, etc. However, I'm not an expert on this; just a newbie plus 5 years.
I just finished a Philco 620 and found differences from the schematics. In reading other topics on the phorum, it seems it was not uncommon for Philco to make changes that weren't always documented. If what you see looks like an original manufacturing installation, I would duplicate it with a new capacitor, resistor, etc. However, I'm not an expert on this; just a newbie plus 5 years.
