High voltage SS output, any experiences ?

[tinitus]

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

http://www.st.com/internet/com/TECHN...CD00000774.pdf

http://www.st.com/internet/com/TECHN...CD00070417.pdf

[Gary P]

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

[Bigun]

High voltage and high current (if not using an OT) means super high power dissipation...

[Michael Koster]

Here's another example of a SS high voltage output circuit with an OPT and local outstage feedback.

Most linear triode-strapped pentode

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.

Cheers,

Michael

[nigelwright7557]

I just bolted on a high power solid state MOSFET amp onto the output of my SRPP front end.
Sounds very good.

[fiacono]

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 haven’t 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.
regards
Frank