Fender 65 twin reverb User Guide

A. POWER RATING - Connect the power line cord to a

g rounded  AC  receptacle  in  accordance  with  the
voltage and frequency ratings shown on the Rear Panel
of the amplifier.

B. FUSE - Protects the amplifier from electrical faults.

Replace fuse only with same type and rating listed on
the fuse holder.  If the amplifier repeatedly blows fuses,
take the amplifier to an authorized Fender Service
Center.

C . POWER SWITCH - Push UP to switch ON the amplifier.

Push DOWN to switch OFF the amplifier.

D. STANDBY SWITCH - Push DOWN to put the amplifier

into STANDBY mode.  Push UP to put the amplifier into
normal OPERATING mode.  In STANDBY mode, power
is supplied to the tube filaments only.  This eliminates
w a rm-up  time  when  re t u rning  the  amplifier  to

OPERATING mode and also increases tube life span.
The POWER switch {C} must be ON for the STANDBY
switch to function.

E. MAIN  SPEAKER  JACK  -  Plug-in  connection  for

speakers.  A speaker must always be connected at this
jack when the amplifier is ON.

F. EXTERNAL SPEAKER JACK - Plug-in connection for

an external speaker.  This jack is wired in parallel with
the  MAIN  SPEAKER  JACK {E}.    A  total  speaker
impedance load of 4-ohms should be used to avoid
damage to the amplifier.

G. FOOTSWITCH  JACK  -  Plug-in  connection  for  the

FOOTSWITCH which enables ON/OFF switching of the
VIBRATO and REVERB effects.  The VIBRATO effect
will not function without the FOOTSWITCH plugged in.

TYPE:

PR 186

PART NUMBE R :

021-7370-000 (100V, 50/60Hz) Japan,

021-7300-000 (120V, 60Hz) USA,

021-7360-000 (230V, 50Hz) Euro,

021-7340-000 (230V, 50Hz) UK,

021-7330-000 (240V, 50Hz) A u s t r a l i a .

POWER REQUIREMENTS:

260 watts

POWER OUTPUT:

85 watts R.M.S.

IMPEDANCES:

INPUTS 1:  1M ohm (both channels), INPUTS 2:  136k ohms (both channels)

OUTPUT:  4 ohms (both speaker jacks together)

FUSE TYPE:

4 ampere, slow-blow, 125 volt minimum

SPEAKER COMPLEMENT:

Two 12-inch Fender vintage re-issue Special Design speakers (P/N-037617)

TUBE COMPLEMENT:

OUTPUT: Four Fender Special Design 6L6GC’s (P/N-039214),

PRE-AMP:  Four Fender Special Design 12AX7A’s (P/N-013341),

Two Fender Special Design 12AT7’s (P/N-023531)

FEATURES:

Vibrato and Reverb, Tilt-back legs

DIMENSIONS:

HEIGHT:

19-7/8 in.

(49.2 cm)

WIDTH:

26-5/32 in.

(63.5 cm)

DEPTH:

10-3/8 in.

(21.9 cm)

WEIGHT:

64 lbs.

(29 kg)

`65 Twin Reverb – Rear Panel

The tube BALANCE and BIAS of your ‘65 Twin Reverb is adjusted at the factory and should
provide years of service before needing attention.  If the sound quality of the amp has degraded
noticeably and HUM BALANCE and BIAS adjustments fail to restore sound quality, the tubes
are worn and need replacement.  Note that pre-amplifier tubes last longer than output tubes.  If
you are not sure about the condition of your tubes or the following procedures, take your
amplifier to an authorized Fender Service Center.

A. HUM BALANCE ADJUSTMENT - This adjustment minimizes the hum heard at the speakers

due to tube filament imbalance.  Balance is usually adjusted only when tubes have been
replaced.  •Adjustment Instructions:  Turn the amplifier ON for 2 minutes with nothing
plugged into any of the INPUTS.  Rotate the VIBRATO CHANNEL volume, middle, and bass
knobs fully clockwise and the treble knob fully counter-clockwise.  Rotate ALL of the
NORMALCHANNEL knobs fully counter-clockwise.  Switch OFF the REVERB and VIBRATO
effects.  Then insert a slotted screwdriver into the BALANCE ADJUSTMENT control, (see
“A” in FIG. 1) and rotate back and forth to the position with the least amount of hum.

B . BIAS  ADJUSTMENT  -    This  adjustment  only  should  be  made  if  the  output  tubes  are

replaced with tubes not identical to the original tubes and should be adjusted only by an
authorized Fender Service Center.

Tube Adjustments

Specifications

Replace tubes with identical F e n d e r® original equipment only (see SPECIFICATIONS below).  Tube location is printed on the tube label, inside the cabinet.

FIG. 1