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Tube DIY Asylum Do It Yourself (DIY) paradise for tube and SET project builders. |
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In Reply to: Not real world posted by Triode_Kingdom on June 15, 2005 at 08:18:47:
Hi.Let me just random take a 'real world' situation: ACE 8W SE monoblock power amp.
As per its schematic, it got a 12AX7 (Va=120V) parallel driver stage pushing a EL-34 U-L SE power stage (Va=275V, Vg2~275V U-L tapped, Vg3=0V, Vg1=16V self-bias).
Per Phillips tube date of EL-34, to deliver 8W O/P, Vi needs 9.3V (Vg1=14.5V). So with ACE EL-34's Vg1=16V, it allows 12AX7 to deliver
larger swing than 9.3V before EL-34 start g1 conducting.I'd assume the ACE designer know how to get the best out of 12AX7
& why it was chosen instead 6SL7, sonically/technically.Here are only 2 of many appraisals from the end-uers of this amp using 12AX7:-
"The best 3-D illusion of any amp. Forget technical talk, let's just listen to the music".
"These little amps are the best value I have seen in 10 years. You would have to spend 5 - 8,000 dollars to get anything even close."
Good listening
cheap-Jack
June 15, 2005.
This post is made possible by the generous support of people like you and our sponsors:
Follow Ups
- Welcome to the 'real world". - cheap-Jack 12:29:07 06/15/05 (0)
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