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Old 17th June 2008, 03:03 AM   #11
Akita is offline Akita  Malaysia
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Hi Shoog, I found your tread about 2tube pp 6as7. It is very interesting too.

Alexq, the 6080 parafeed amp? is single ended or push-pull?
It is something like the schematic below?
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Old 17th June 2008, 06:32 AM   #12
alexg is offline alexg  Philippines
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Akita, parafeed amps are single ended.

I don't have a schema of my amp and my amp is on loan to a friend, I will draw one when I get it back.
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Old 17th June 2008, 09:43 AM   #13
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The Lilliput wont drive the 6AS7 to full power, the preamp tube will clip first.
You'll need about +-125volts peak drive voltage and the latter circuit with the choke loaded driver will do that much better.

6AS7s may not be the most linear, but they are still the most under rated power triode out there. Perhaps the low rp and thus low winding ratio in the O.T. makes up for it's faults, b/c it certainly sounds great.
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Old 17th June 2008, 10:53 AM   #14
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Quote:
6AS7s may not be the most linear, but they are still the most under rated power triode out there. Perhaps the low rp and thus low winding ratio in the O.T. makes up for it's faults, b/c it certainly sounds great.
I love it - but in PP. My PP effort sounds very SE in characture.

Shoog
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Old 18th June 2008, 07:30 AM   #15
Akita is offline Akita  Malaysia
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Alexq, How many power output you get for you Se parafeed amp?
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Old 18th June 2008, 09:54 AM   #16
alexg is offline alexg  Philippines
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Akita, I have not measured the power, but I have estimated between 2.5 to 3 wpc.
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