[sdiy] tube amp

[Ingo Debus]

Am Samstag, 15.01.05 um 06:57 Uhr schrieb anthony:

> I'm making a monoblok amp from 3 EL84's.

I'm curious... what is the third EL84 for?


>  I'm using an oscilloscope chassis that seemed perfect for the job 
> since it already had all of the sockets and power supply. The thing 
> is, it has a 1500V section on the power supply for the 'big' tube. I'm 
> just wondering what would be the best way to make this safe(r).

Can't you disconnect this part of the power supply circuit from the 
mains transformer? The output voltage of that secondary winding is 
perhaps much lower. My Hameg has a 2000V supply for the CRT, but the AC 
voltage from the transformer is "only" 460 volts.

Ingo