l-r
front row; Champ II, Super Champ; middle row, Yale Reverb, Harvard Reverb II,
Princeton Reverb II;
back row, Studio
Lead, Stage Lead, Deluxe Reverb II (red = solid state).
This page concerns;
the Fender Super Champ, Princeton Reverb II, Deluxe
Reverb II, Concert (1982-86 model sometimes called Concert II;
eleven knobs on the front), Bassman 20, Champ II, Twin Reverb
II, and Fender 75 and 140.
The 30, 75 and 140 weren't in the Rivera-era, as they
pre-date Paul Rivera's time with Fender. Anyone got the
schematic for the Fender 30?
Here's
.pdf file of the 1983
Fender amp catalogue - (14Mb) - which gives you
specifications for each amp. I am indebted to
Vincent D in the US for weighing his Deluxe Reverb II
(with the original Blue Label speaker) and finding it
weighs 42lb, and not the 32lb as listed in the 1983
Fender amp catalogue. As he points out, that's got to be
a misprint, being the same figure as for the smaller
PRII. Just in case anyone with back trouble thought this
was a light-but-fully-featured 2-channel amp...
Thanks
to Ulrich Z and Soren of the Super Champ website for
doing the scanning.
As I look after the website
which concentrates on the Princeton
Reverb II, I
occasionally get requests for schematics for other amps in the
Rivera-era Fender range. For two years I couldn't help. But Mark
Carson on the FDP, a splendidly helpful chap, sent me several.
Others came from other places. So here you are. All I've
done here is gather this info in one place. Big thanks are due to
all the anonymous folks down the years who kept the paperwork,
scanned it into computer format, and shared it free of charge.
This series of guitar
amplifiers was built from 1982 to 1986 and are variously referred
to as the "II series" and/or the "Rivera-Era" Fenders. I only own
a Princeton Reverb II, so please don't ask me questions which
involve actual hands-on experience of the other amps. I recommend
another single-amp site for the Super Champ. Some modifications for the
PRII will work for the other amps in the series - see my modifications page. Safety disclaimers
apply! Good luck.
Augl 2012 - still collecting data - I am trying
to track how many of these amps were made. If you have one, please email me with the serial number (format
Fxxxxxx). Even better, let me also have the transformer codes
(format 606-xxx) and the loudspeaker codes, if any? Thanks very
much. No dismantling is necessary, though you might need a torch
or flashlight - the transformer codes are stamped into the
metalwork of the transformers, which hang down from the chassis.
The speaker codes are in white ink on the black-painted metal near
the rim of the speaker (67-xxxx) or on the magnet (109xxxx). Your
privacy will be respected and no commercial use will be made of
the information. If your amp is being dismantled, please look for
a 4-digit code written or printed on the chassis metalwork -
that's a code for the actual week the amp was built, and would
really help me a lot. In return for (minimum) the serial number I
will tell you when your amp was made!
Please note, I have zero
experience of these amps except for the Princeton Reverb II. If
you have any questions about this range, you can ask me - I may
have some second-hand info - but I guarantee you'll get
better answers on some discussion board such as the Fender Forum
(= FDP).
Some of these schematics
are .pdf files and so require Acrobat Reader, which is available
as a free download from Adobe and other places.
Most of these documents are probably also available direct from
Fender - Fender.com
support section - you email them, asking for what you want,
and a helpful man called Ed Treat emails you back with the
required file.
So - without
more ado - here are the schematics....
Valve (Tube) amps All
the data on this web page is offered free of charge
and believed good (it's worked for my amp) but I
can't accept responsibility or liability for any
errors or omissions, or for anything that happens as
a result of using these schematics, which are
copyrighted by Fender, with whom I have no affiliation. Always
read the label, consult your physician, may
contain nuts. I think that about covers it.
Bassman
20 schematic and wiring diagram - please let me have your amp's
serial number This amp shares the
metal chassis and a lot of circuitry with the Champ II, the
differences (apart from the cab and speaker) being in the tone
controls, an extra gain stage + master volume in the Champ II, and
the type of phase inverter. There is an internet myth going around
that fewer than 500 Bassman 20s were made. No-one ever says where
this "info" originated. My research shows that around six thousand
Champ IIs and Bassman 20s (total) were made and it looks like
around half were Champ II, half Bassman 20. I'm not trying to
devalue anyone's Bassman 20... own it because it's a great amp,
not because it's "rare".
This concerns the 1982-86
Concert, sometimes called the Concert II; this model has
11(eleven) knobs on the front, not counting lamps and switches.
All other Concerts, older or younger, have a different number of
knobs. If there are eleven, it's this amp. The link
below is lower quality but includes the parts list (not included
in the high-quality file above).
Concert "II" - low quality but it has the parts list (pdf
file) - please let me have your amp's serial number
Big big thanks to DRII
onwer-from-new, Michael Brenegan, who sent me the above file,
August 2012 (previously I only had a copy minus the parts list).
Michael says the parts numbers
need to be ten digits, so a zero needs to be added to the front,
and three zeroes to the end of each number. Deluxe
Reverb II user manual - big thanks to DRII owner Paul
Stansfield! Deluxe Reverb II interior photos - new June 2012
I am indebted to Vincent D
in the US for weighing his DRII (with the original Blue Label
speaker) and finding it weighs 42lb, and not the 32lb as listed
in the 1983 Fender amp catalogue. As he points out, that's got
to be a misprint, being the same figure as for the smaller PRII.
Just in case anyone with back trouble thought this was a
light-but-fully-featured 2-channel amp... -----------------
Princeton
Reverb II schematic, wiring diagram and parts list (pdf file) -
please let me have your amp' serial number I think there is an
error somewhere in all this... the schematic and the parts list
show a 68K resistor at the input, but the wiring diagram and the
interior photo show 39K! I haven't been inside mine to check (and
I don't know what audible difference this might make, with these
resistors being only a factor of two apart; so let's not worry
about it in the meantime). Also one of the bias voltage
potential-divider resistors is not shown on the wiring diagram;
there should be a 15K resistor in parallel with the right-hand
70uF capacitor. (the schematic is correct).
Magazine Reviews
of the Rivera-era amps from 1980s UK magazines. Big thanks to DRII
owner Gordon
Trunkfield!
Electronics and Music Maker Aug 83; review of Stage Lead and
interview with John Hill of Fender UK (pity poor Paul Rivera
getting confused with Paul Revere in this one...)
