High Power Single Ended Amplifier Club

[Unison845]

Hi all,

I would like to invite you to share your experience with High Power Single Ended Amplifier (greater than 20W output).

 

[Fuling]

No experiences yet, but I´m working on a pair of 813 monoblocks that should reach 26-27W each. 900V B+, 9,2k plate load and grid pushed to +20V at peaks.

 

[Unison845]

Stereo 35watts SE Eimac 250TL

This is a stereo 35 watts single ended amplififier using Eimac 250TL output tubes.

 

[Unison845]

Hi Fuling,

What kind of transformer do you plan to use in your amp?

 

[Fuling]

Hi

Lundahl IT´s and OPT´s, DIY:ed power transformers, Hammond chokes.

I´ve ordered a pair of LL1688 OPT´s, it´s a new model intended for 845 amps. I ordered mine with a slightly bigger airgap to allow 80mA instead of the original 70.

IT´s are LL1671/50mA driven by 6C19´s