FDP Home Page / FDP Forum / FAQ's

The FDP is made possible by the following companies and individual members like you.
Please use the links below to show them we value their sponsorship.

WD Music

Apex Tube Matching

Antique Electronics Supply

Amplified Parts

Jensen Loudspeakers

Yellowjackets Tube Converters



* God bless America and our men and women in uniform *

* Illegitimi non carborundum! *

If you benefit and learn from the FDP and enjoy our site, please help support us and become a Contributing Member or make a Donation today! The FDP counts on YOU to help keep the site going with an annual contribution. It's quick and easy with PayPal. Please do it TODAY!

Chris Greene, Host & Founder



Find musicians
in your area!
  Search the Forums  

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



Jul 12th, 2019 01:22 PM   Edit   Profile  


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...


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

Reply to this Topic
Display my email address             Lost your password?
Your Message:
Link Address (URL):
Link Title:

Moderators: Chris Greene  Iron Man  reverendrob  

FDP, LLC Privacy Policy: Your real name, username, and email
are held in confidence and not disclosed to any third parties, sold, or
used for anything other than FDP Forum registration unless you specifically authorize disclosure.

Internet Application Development

Copyright © 1999-2019 Fender Discussion Page, LLC   All Rights Reserved