High Power Single Ended Amplifier Club

Unison845 · 25th April 2004, 07:31 AM

Hi all,

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

Fuling · 25th April 2004, 09:29 AM

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 · 26th April 2004, 06:00 AM

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

Unison845 · 27th April 2004, 01:24 PM

Hi Fuling,

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

Fuling · 27th April 2004, 01:32 PM

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

25th April 2004, 07:31 AM	#1
Unison845 diyAudio Member Join Date: Apr 2004 Location: California	High Power Single Ended Amplifier Club Hi all, I would like to invite you to share your experience with High Power Single Ended Amplifier (greater than 20W output). __________________ Unison845

27th April 2004, 01:24 PM	#4
Unison845 diyAudio Member Join Date: Apr 2004 Location: California	Hi Fuling, What kind of transformer do you plan to use in your amp? __________________ Unison845

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25th April 2004, 09:29 AM	#2
Fuling diyAudio Member Join Date: Aug 2001 Location: Sweden (Mora)	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.

27th April 2004, 01:32 PM	#5
Fuling diyAudio Member Join Date: Aug 2001 Location: Sweden (Mora)	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