peavey classic 30 trannys?

[chuckb]

Hey guys, i was just given a set of trannys from a peavey classic 30. i was hoping to use them for a amp project. I'm not sure if the power tranny has a 6.3 tap or not. Does anyone here know if the two yellow wires on the secondary are 6.3v or not?

[The Dude]

Apply power to the transformer and measure them. The Classic 30 is a tube amp, so it would certainly have a filament winding in the PT.

[chuckb]

Ya thanks dude, i blew the fuse in my variac and will try it when i get another one in the morning. thanks.

[Enzo]

Look at the schematic.

No, there is no 6v winding. There is a heater winding, but it is 25vAC. The four power tubes are wired heaters in series, so 4 x 6.3v.

Note they also rectify and filter that 25vAC to make -36vDC. The three 12AX7s in that amp are also wired in series across that -36vDC.

If you want to build a project with the same tube complement, you are all set.

[chuckb]

hey enzo, ya thanks man, i just got a hold of the schematic and your right. Guess i'll have to go with the same tube compliment as the classic 30. Thanks for your reply,much appreciated.