Wiring the Power Switch, AC Receptacle and Fuse Holder
Step 1
– Choose the appropriate two primary wires from the above
list for your area mains voltage.
Step 2
– Run the black wire from the power transformer neatly to
the power switch. Trim to an appropriate length and then strip and
tin the end. Save the remaining wire for future use.
Step 3
– Solder the above black wire from the transformer to the
power switch on the terminal nearest the vibrato speed control.
Step 4
– Cut a 16” length of 18AWG white wire and strip and tin
one end.
Step 5
– Solder this 18AWG white wire to the opposite solder
terminal of the power switch.
Step 6
– Run this white wire over to the power transformer. Then
twist this white wire tightly together with the remaining black with
strip wire from the power transformer.
Step 7
– Run these two wires along the edge of the chassis to the
fuse holder.
Step 8
– Untwist the two wires so that the white wire can be run to
the fuse holder terminal nearest the chassis back plate.
Step 9
– Cut this white wire to appropriate length and strip and tin.
Step 10
– Solder this white wire to the fuse holder terminal nearest
the back panel.
Step 11
– Cut the black wire with strip coming from the transformer
to appropriate length and Strip and tin the end.
Step 12
– Solder this wire to the AC receptacle terminal nearest the
vibrato jack on the back of the AC receptacle.
To have the option of selecting between solid state and tube rectifiers, install a switch
between the AC fuse holder and the AC recepticle. For proper wiring, see “Cool
Modifications”, chapter 11.
MOD
CAUTION
It is important to wire the fuse holder as recommended. This way shock hazards associated
with changing a fuse are reduced because the source AC is at the far end of the fuse holder
and not at the cap end where fingers could touch.
It is important to choose the correct primary wires based on the mains voltage appropriate
for your location in the world. Incorrect wiring can lead to power transformer damage and/or
fire hazards.
WARNING
The correct wire choices as per the mains voltages are as follows:
If your mains
then the wires to use are ...
voltage is ...
wire #1 (to AC receptecal)
wire #2 (to power switch)
110/115
black with white stripe
black
117/120
black with white stripe
black
220
black with red stripe
black
230
black with red stripe
black
240
black with red stripe
black
CAUTION
photo 5.20a
photo 5.20b
to pwr sw.
from recpt.
5.20
22 TubeDepot.com
