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Trying to figure the production run on a 620B
Chuck Schwark
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#4

12-18-2015, 08:02 PM
Well you're in luck.  Service Bulletin 218-A, for the later production runs of the 620, 
beginning with Run No. 7, shows the circuit you have with the 3-section resistor 
in the power supply section.

Happy Holidays!

:-)
Chuck Schwark,
The Philco Repair Bench
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RE: Trying to figure the production run on a 620B - by Chuck Schwark - 12-18-2015, 08:02 PM



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