Recommended output transistor for Class A amplifier

[aldovan]

I need know what transistor is recommended for a single ended Class A amplifier.
I want a transistor with good sound and good termic capacity.
My amp run at 30V x 2A in each output transistor.

Thanks,

Aldovan

 

[EchoWars]

The MJ15003/15004 are pretty tough little TO-3's. If you want to use a plastic package, the MJL21195/21196 will do well.

 

[audiobard]

Hi,
Try MJ15023/15024.They have higher ft (4MHz) then the MJ15001/15003. Don't use high hfe transistor in single ended amps, they will oscillate. I had that problem when I built JLH se amp. I tried to use the 2SC3281, and it didn't work.

 

[aldovan]

output transistor

Thanks, but I try this transistor and the sound is bad, too.

 

[Leolabs]

Try some Sankens too.

 

[taj]

Re: output transistor

Thanks, but I try this transistor and the sound is bad, too.

Hi Aldovan,

I think maybe you should look elsewhere for the reason it sounds bad. Check for incorrect bias; already oscillating; faulty part; incorrectly installed part; wrong value part; poor amp design; etc.

Good luck.

..Todd