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High voltage SS output, any experiences ?
High voltage SS output, any experiences ?
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Old 18th November 2010, 02:15 PM   #1
tinitus is offline tinitus  Europe
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High voltage SS output, any experiences ?
Default High voltage SS output, any experiences ?

hey, anyone built a hybrid with high voltage SS output

or are there any experiences with any kind of high voltage SS output

would it make sense to use a flea power amp as driver
maybe either OTL output, or maybe even a 2A3


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Old 18th November 2010, 03:24 PM   #2
Gary P is offline Gary P
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While their not hybrids, I've built amps that are high voltage SS. The amps are solid state renditions of the 47 P-P and Tabor class A balanced amplifiers with local feedback on the output stage.

On my webpage-

Tube versions - 47 P-P, Tabor, Tabor Rev. 3

Solid State versions - SS Tabor
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Old 18th November 2010, 03:55 PM   #3
Bigun is offline Bigun  Canada
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High voltage SS output, any experiences ?
High voltage and high current (if not using an OT) means super high power dissipation...
"The test of the machine is the satisfaction it gives you. There isn't any other test. If the machine produces tranquility it's right. If it disturbs you it's wrong until either the machine or your mind is changed." Robert M Pirsig.
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Old 18th November 2010, 04:50 PM   #4
Michael Koster is offline Michael Koster  United States
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Here's another example of a SS high voltage output circuit with an OPT and local outstage feedback.


I started with a hybrid of MOSFET input and a 6L6 output tube, then for grins substituted a HV IGBT in place of the tube. I think it may sound a little better with the SS device but it's a difficult call.

For a hybrid, the depletion mode MOSFET at the input could be replaced with a pentode., which will certainly have the possibility of changing the low order harmonic content.


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Old 18th November 2010, 09:09 PM   #5
nigelwright7557 is offline nigelwright7557  United Kingdom
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I just bolted on a high power solid state MOSFET amp onto the output of my SRPP front end.
Sounds very good.
PCBCAD51 pcb design software. 2018 version out now with lower prices >> http://www.murtonpikesystems.co.uk
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Old 18th November 2010, 10:47 PM   #6
fiacono is offline fiacono  Australia
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Default SS Tabor

Hi Gary
Very impressed with your SS Tabor amplifier.
I have built a few transformer coupled amplifiers Amity, Karna, KK and variants (all DHT outputs).
I have noticed the input tube has a big impact on the overall sonic of the amplifier and I just havenít found an input tube I like.
What are your thoughts if I used SS input TT coupled to 45 drivers and 300B outputs? This would do away with a tube input.
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