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Old 11th January 2004, 10:40 AM   #1
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Join Date: Nov 2003
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Default Newbie - Is this a good amp?

I wanna make bigger amp (20-50 watt) and this amp from Vacuum State :

Does any have built this amp? Can replace El34 with SV6550C?
or may be suggestion about building another good sounding PP amp specially using 6550...

I wanna build this because it has no feedback (which alot of people say it has a bad effect) and it uses plate load on driver....

Help me please...
Mas Penk
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Old 11th January 2004, 11:53 AM   #2
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Join Date: Sep 2003
Location: Midland, Michigan
I have not had good luck with the SV6550C tubes due to premature tube failure. For that reason, I have converted my power amplifier to Sovtek KT88 tubes. I couldn't be happier.

Inverse feedback in push-pull amplifiers is almost always necessary to reduce crossover (notch) distortion and to reduce the output impedance of the amplifier.
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Old 11th January 2004, 02:17 PM   #3
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So what do you think about that amps....?
Mas Penk
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