[AI2V]

Does anyone know the difference between the 620 and 625? The schematics seem to be the same.

[Chuck Schwark]

Comparing the two schematics, it's obvious that there are first audio amp bias component differences, many differences in the RF/IF stages component-wise, many AVC line component differences - (delayed AVC in the 625), 620 has AVC line to IF tube, 625 does not, etc.

[AI2V]

Thanks, Chuck. I didn't look closely enough at the schematic.