#183 secondaries wiring

[lionaird]

Hi,

I'm currently building a #183 clone and confused myself a bit regarding the PT wiring. Now, I'm using a separate transformer to power the "Relay Power Supply PCB" and a Classic Tone Twin PT (http://www.classictone.net/40-18042.pdf).

Just wondering where to wire the 6.3V secondaries of the PT to? Pin 2 and 7 of the first EL34?

Cheers,
Toby

[Bob-I]

Hi,

I'm currently building a #183 clone and confused myself a bit regarding the PT wiring. Now, I'm using a separate transformer to power the "Relay Power Supply PCB" and a Classic Tone Twin PT (http://www.classictone.net/40-18042.pdf).

Just wondering where to wire the 6.3V secondaries of the PT to? Pin 2 and 7 of the first EL34?

Cheers,
Toby

Correct. And ground the green/yellow wire. No need to add the 120 ohm resistors when you have the ground on the secondaries.

[lionaird]

Hi,

I'm currently building a #183 clone and confused myself a bit regarding the PT wiring. Now, I'm using a separate transformer to power the "Relay Power Supply PCB" and a Classic Tone Twin PT (http://www.classictone.net/40-18042.pdf).

Just wondering where to wire the 6.3V secondaries of the PT to? Pin 2 and 7 of the first EL34?

Cheers,
Toby

Correct. And ground the green/yellow wire. No need to add the 120 ohm resistors when you have the ground on the secondaries.

Thanks. And another stupid question :

You obviously run heater wire between pins 2 and 7 of all the EL34s. Do you then wire pin 2 of the fourth EL to pin 4/5 of the first 12Axx? And pin 7 of the EL to pin 9 of the 12Axx?

[amplifiednation]

Just be consistent on all the power tubes, and then run the wires consistently to the same pins of each of he preamp tubes. So 4-5 goes to 4-5 and 9 to 9. They don't have any connection power/pre, but each set of tubes should be run to the same pins.

I hope that makes sense its late here...

Hi,

I'm currently building a #183 clone and confused myself a bit regarding the PT wiring. Now, I'm using a separate transformer to power the "Relay Power Supply PCB" and a Classic Tone Twin PT (http://www.classictone.net/40-18042.pdf).

Just wondering where to wire the 6.3V secondaries of the PT to? Pin 2 and 7 of the first EL34?

Cheers,
Toby

Correct. And ground the green/yellow wire. No need to add the 120 ohm resistors when you have the ground on the secondaries.

Thanks. And another stupid question :

You obviously run heater wire between pins 2 and 7 of all the EL34s. Do you then wire pin 2 of the fourth EL to pin 4/5 of the first 12Axx? And pin 7 of the EL to pin 9 of the 12Axx?

[lionaird]

Just be consistent on all the power tubes, and then run the wires consistently to the same pins of each of he preamp tubes. So 4-5 goes to 4-5 and 9 to 9. They don't have any connection power/pre, but each set of tubes should be run to the same pins.

I hope that makes sense its late here...

Yes, that makes sense. But where do the preamp tubes get their heater current from?

[amplifiednation]

Just be consistent on all the power tubes, and then run the wires consistently to the same pins of each of he preamp tubes. So 4-5 goes to 4-5 and 9 to 9. They don't have any connection power/pre, but each set of tubes should be run to the same pins.

I hope that makes sense its late here...

Yes, that makes sense. But where do the preamp tubes get their heater current from?

Sorry, all the tubes run off the same 6.3v, just go from your last el34 to your pi, then to V2 and v1

[lionaird]

Just be consistent on all the power tubes, and then run the wires consistently to the same pins of each of he preamp tubes. So 4-5 goes to 4-5 and 9 to 9. They don't have any connection power/pre, but each set of tubes should be run to the same pins.

I hope that makes sense its late here...

Yes, that makes sense. But where do the preamp tubes get their heater current from?

Sorry, all the tubes run off the same 6.3v, just go from your last el34 to your pi, then to V2 and v1

That's what I thought. Thanks for confirming