Mod 102+ Manual page 13

Connect the T3 and bass pot components:
The bass and treble controls are dual 250K pots with a DPDT push-pull switch attached.
The front pot section, closest to the front panel, will not be used. The DPDT lug
numbering is shown in the drawings.
1) Connect the 6.8K resistor from the bass pot's c-lug ("cold" lug) to mid-boost
switch lug 2, but do not solder either connection point, yet.
Tip: When making the capacitor connections at this pot, it is important that
the leads do not accidentally touch the pot/switch body or a different lug
than intended. If you feel it is necessary to insulate the capacitor leads, you
might consider doing so by stripping some of the insulation from the black
22 AWG wire and sliding it over the capacitor leads.
2) Connect the .047 µF cap from the bass pot's c-lug to T3(1). Now, solder these connections.
3) Connect one lead of the 10K, ½ watt resistor to mid-boost switch lug 2 and connect the other lead to both
mid-boost switch lug 3 and the body ground terminal. Now, solder these connections.
4) Connect the .1 µF cap from T3(1) to the bass pot's w-lug ("wiper" lug), but
5) Connect a 2" piece of white wire from the bass pot's w-lug to the treble pot's c-lug. Now, solder these
connections.
6) Connect a 100K resistor from T3(1) to T4(5).
Connect the treble pot components:
1) Connect a 2 ¾" piece of white wire from the treble pot's w-lug to the volume pot's h-lug ("hot" lug).
not solder these connections, yet.
2) Connect a 150 pF capacitor from the treble pot's w-lug to bright switch lug 4. Solder all connections now.
3) Connect the 250 pF capacitor from the treble pot's h-lug to T4(5).
Tip: The black 22 AWG stranded wire is supplied because the white solid-core wire is too thick to fit through
the switch lugs. Normally, it's a good idea to strip and tin ¼" at the stranded wire ends before making the
connections. In this case, on the end that will connect to the switch lug, just strip 1/8" and do not tin that end.
4) Connect a 2" piece of black 22 AWG wire from bright switch lug 5 to the volume pot's wiper lug.
solder the wiper lug connection, yet.
1/8"
Do not tin
this end.
Switch End
13
c w h
1
2
3
.047µF
400V
do not solder at the w-lug, yet.
1/4"
Tin this
end.
Pot End
Unused front
potentiometer
section
c w h
4
1 4
5
2 5
6
3 6
Body ground
terminal
Do
Do not