Specifications
transformer. Connect these two wires to pins 8 and 2 (top
opening of pins) of the rectifier tube socket. Solder pin 2 but
don't solder pin 8 just yet (photo 6.18a). There are more wires
to add later.
Proceed to 6.19
Wiring the Standby Switch
Step 1 – Cut a piece of red wire 6” long and strip and tin both ends.
Connect one end of this wire to pin 8 of the rectifier tube socket. Solder
the wires together on this pin.
Step 2 – Connect the other end of this wire to the terminal of the standby
switch nearest the chassis end (photo
6.19a).
Step 3 – Cut another piece of red wire 10”
long and strip and tin both ends. Connect
one end of the wire to the opposite terminal
of the standby switch. Solder the other end
of this wire to one of the pads labeled “i”.
Step 4 – Neatly organize these wires
against the chassis.
Proceed to 6.20
Wiring the Output Tubes
Step 1 – On the back of both power tube
sockets, connect a 470 / 2 watt resistor
between pin 1 and pin 4. Lightly solder (tack) in place (photo 6.20a).
Step 2 – On the back of both power tube sockets, connect a 1.5K / ½ watt resistor between
pin 5 and pin 6. Lightly solder (tack) in place (photo 6.20a).
Step 3 – Connect the blue wire from the output transformer to pin 3 of the octal tube socket
nearest the rectifier tube socket (photo 6.20a).
Step 4 – Connect the brown wire from the output transformer to pin 3 of the octal socket
nearest the preamp tube (photo 6.20a).
Step 5 – Connect the red wire of the output transformer to pad “i” of the PC board.
Step 6 – Strip and tin the end of the wire coming from pad “j” of the PC board.
Step 7 – Solder the end of this red wire to the lower hole of pin 1 of the power tube socket
nearest the preamp socket (photo 6.20a).
Step 8 – Solder the 3” wire coming from pad “h” of the pc board into the lower hole of the
solder tab pin 8 of the octal socket nearest the preamp tube socket (photo 6.20a)
Step 9 – Cut two 3 ½” yellow wires. Strip and tin all ends.
Step 10 – Solder one of the above 3 ½ “ wires onto pin 8 of the tube socket nearest the
rectifier socket (photo 6.20a). Solder the other end of this wire to pin 8 of the other octal tube
socket nearest the preamp tubes.
Step 11 – Solder the second of the above 3 ½ “ wires onto pin 1 of the tube socket nearest
the rectifier socket (photo 6.20a). Solder the other end of this wire to pin 1 of the other octal
tube socket nearest the preamp tube socket.
Step 12 – Locate the two yellow wires coming from pads “p” and “q” of the PC board. Strip
and tin the end of these wires.
Step 13 – With a permanent marker, place an identifying mark near the end of the wire
6.20
TubeDepot.com 21
6.19
photo 6.20a
photo 6.19a