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FDP Forum / Amp Mods, Repairs, and Projects / Pro Junior schematic rev level vs. i, ii, iii, iv?

Murrayatuptow

USA/Michigan

Murray
Jul 12th, 2019 01:22 PM   Edit   Profile  

Hi:

New here. Helping a friend with a Pro Junior ii, and found The Tube Store had a 10 page schematic/layout document covering Rev A-F. It appears A is the initial release, which I assume would be what I called 'i'. Maybe it was just PJ until 'ii' came along.

Don't laugh- is there any connection between the different series and the rev. level?

Almost seems silly to think that is predictable, given the inconsistencies we find on many amps from many manufacturers.
Maybe I have to decide what rev. drawing his amp is built to (best guess) after comparing.

Doesn't hurt to ask...

Thanks



FDP Forum / Amp Mods, Repairs, and Projects / Pro Junior schematic rev level vs. i, ii, iii, iv?




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