Transformer Help

[Jim Nasium]

I am wanting to go ahead and get some spare parts on hand for the Gretsch 6159 Dual Bass(1966-67).

Please help me specify a suitable replacement for the transformers.

The PT configuration presently looks as it is pictured.
Two black wires go to the main switch circuit.
Two red wires go to the diodes.
Two green wires go to V6.2, and V6.7 (power tube)
One green/yellow wire goes to the ground lug on the V6 (power tube).

[Jim Nasium]

Here are pictures of the OT.

[Electron Tornado]

This might help:

[sluckey]

Please help me specify a suitable replacement for the transformers.

For starters, measure all the secondary voltages, ie, red wire to red wire, green wire to green wire.

[PRR]

280VAC >200mA, 6.3VAC >2.7A

5K CT 20-30 Watts to whatever speaker impedance

[Jim Nasium]

280VAC >200mA, 6.3VAC >2.7A

5K CT 20-30 Watts to whatever speaker impedance

Hi PTT, thank you for the response. I am a super newbie. Could you please break down your comment to me to a beginner level?

[Jim Nasium]

Please help me specify a suitable replacement for the transformers.

For starters, measure all the secondary voltages, ie, red wire to red wire, green wire to green wire.

Thank you for the response. Since I am waiting on replacement capacitors to arrive before changing them out, I do not want to supply power to them. If I removed the two 6L6 power tubes, could I safely perform the measurements without charging the amps capacitors?

Also, what needs to be checked in order to cross reference the Output Transformer?

With the head removed from the cabinet, the speakers are not connected, so no load there. Is that okay to do, or should I connect them first?

[sluckey]

Just disconnect the red wires to test for voltage. PRR already covered the OT.

[j_bruce]

the one i used:

http://www.classictone.net/40-18103.html


worked fine.