03-09-2009, 08:25 PM
Does anyone know the difference between the 620 and 625? The schematics seem to be the same.
Pete AI2V
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620 vs. 625
03-10-2009, 08:20 AM
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.
Chuck Schwark, The Philco Repair Bench [Image: http://www.philcorepairbench.com/images/philog3tiny.gif] http://www.philcorepairbench.com
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