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AI2V · 03-10-2009, 02:25 AM

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

**Chuck Schwark** · 03-10-2009, 02:20 PM

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 · 03-10-2009, 11:40 PM

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