Version 3.2
Page: 33
Wire Up Heater Wires
Install
the pilot lamp socket if you haven’t already
.
It is important to wire the tube filaments
carefully. Use the Red-Black pre-twisted wire
to do this. If you need to make up some
heater wire, tightly twist two long lengths of
wire tightly together. This will help to
minimize any hum.
Solder each wire to the indicator socket.
It is imperative that where possible, the signal
wires run close to the chassis, while the heater
wires run as far away from the signal wires as
possible. Make sure the signal wires hug the
chassis and the heaters have a tight twist on
them. For the 12AX7 and 12AY7, we have
had success running the connection wires to
them from as shown in the layout.
Note:
Don’t substitute s
maller gauge heater wires. The wires need to be big enough to carry
the current back to ground and keep hum low.
One wire comes from the indicator socket to the first 6V6 Power Tube to pin 7, the other wire
to same 6V6 Power Tube but pin 2. Then these go to pins 7 and 2 respectively of the second
Power Tube. From there, the wires daisy chain across the preamp tubes. Run the heater wires
for the preamp as far away from the board as possible, along the inside of the chassis edge.
One wire connects to both pins 4 and 5 of each preamp tube and the other wire to pin 9.
Connect the
same color heater wire to the same pin(s) as you progress from tube to tube e.g.
Black on pin 7 of both 6V6 and Red on pins 2. Do the preamps tubes using the same process.
Black on pins 4 & 5 tied together and Red
on pins 9. Don’t switch the heater wire polarity.
Once soldered, in place at each tube socket, press it flat, tight against the chassis.
Summary of Contents for Trinity Tweed Amp
Page 2: ...Version 3 2 Page 2 ...
Page 16: ......
Page 20: ...Version 3 2 Page 20 Input Jack Theory from 18watt com ...
Page 25: ...Version 3 2 Page 25 ...
Page 49: ...Version 3 2 Page 49 ...
Page 65: ...Version 3 2 Page 65 HEYBOER OT for TWEED 6L6GT CONVERSION ...
Page 66: ...Version 3 2 Page 66 ...
Page 75: ...Version 3 2 Page 75 ...
Page 76: ...Version 3 2 Page 76 ...
Page 77: ...Version 3 2 Page 77 Trinity Amps Schematics and Layouts ...