Wiring the Can Filter Capacitor
Step 1
– Locate the 2.2K / 3W resistor and bend both leads.
Step 2
– Trim the leads and tack solder the resistor between the two
positive terminals of the can capacitor (photo 5.22b / 5.23a).
Step 3
– Pull the wires of the primary of the output transformer (brown,
red and blue) tight against the chassis and over to the edge at the back
of the chassis.
Step 4
– Untwist the red wire just to the point that the stretched wires
meet the chassis edge.
Step 5
– Run this wire neatly against the chassis edge and over to the
can capacitor terminal nearest the AC receptacle.
Step 6
– Cut this red wire to length and strip and tin the end.
Step 7
– Connect this tinned wire end to the can capacitor terminal
nearest the AC receptacle and solder fully (photo 5.22b / 5.23a).
Wiring the Output Transformer Primary to V4 and V5 Sockets
Step 1
– Locate the brown and blue wires of the output transformer at the chassis edge.
Step 2
– Run the brown wire from the chassis edge over to V5 pin 7 and cut to length.
Step 3
– Strip, tin and solder this brown wire to pin 7, V5.
Step 4
– Run the blue wire along the chassis edge over to V4 pin 7 and cut to length.
Step 5
– Strip, tin and solder this blue wire to pin 7, V4.
Wiring the Footswitch Jack
Step 1
– Cut a 6” length of black 20AWG wire and
strip 3/4” of insulation from one end and tin.
Step 2
– Insert this 3/4” uninsulated wire end through
both “sleeve” terminals of the footswitch jack and
solder in place (A) (see drawing 5.25a).
Step 3
– Strip and tin the other end of this 6” wire and
solder it to the nearby chassis common ground at the
can capacitor.
Step 4
– Cut an 10” length of blue 20AWG wire. Strip
3/4” of insulation from one end and tin.
Step 5
– Tack solder this stripped wire through both “tip” terminals
of the footswitch jack (C).
Step 6
– Strip and tin the other end of this 10” wire and tack solder it to pin 7 of V3. Run this
wire neatly against the rear chassis edge.
5.23
For quicker dynamics and lower hum from the amp, a small choke can be installed in place
of the 2.2K / 3W resistor. Refer to “Cool Modifications”, Chapter 11 for more information.
MOD
5.25
The middle “ring” terminals (B) of this jack can be wired for footswitch selection between
high and low speeds of the vibrato. See “Cool Modifications”, Chapter 11 for more
information.
MOD
5.24
photo 5.23a
24 TubeDepot.com
photo 5.25a
20 AWG
blue, 10”
A
B
C
