Dual rectifier Bassman OT question

[jelle]

Hi,

I was wondering what the specs are of the output transformers of the earlier dual rectifier bassman amps? Most important is the primary Z. The speaker load is Ohms.

Thanks!

Jelle

[M Fowler]

http://music-electronics-forum.com/t18582/

Looks like Patrick at Mercury recommended 4k OT. Output Tranny: FO50BM-1

[M Fowler]

http://www.thegearpage.net/board/showth ... 308&page=2

About mid way down on this thread is picture with this caption.

1956 Bassman 5E6-A, and it has the 7993 PT and the 2820 OT, this Bassman from 1955-56 has the Massive High Power Tweed Twin PT 7993 that is needed to run the dual rectifier, the LP Twin also uses the 7993 PT as it is the dual rectifier.

[M Fowler]

http://forums.vintageamps.com/viewtopic ... 0&start=30

This one states 2820 Bassman OT is 2k.

[jelle]

Thanks!

2K seems really low. Is there any more data out there?

[ToneMerc]

Thanks!

2K seems really low. Is there any more data out there?

Jelle, I had that info at one time and IIRC it was at or around 5K. MM does a Triad 2820 clone, they could tell you.

TM

[jelle]

5k makes all the sense in the world! Thank you.