The Great transformer based SE amp

[PMA]

Few years ago I made the amp that can be seen in the attached file. Some visitors who were used to listen to the plastic audio were satisfied with its sound. Any comments, folks?

 

[analog_sa]

Czech humour?

 

[PMA]

Seems it greatly depends who is a thread starter. Sometimes evaluated as "minimalistic simple ZEN concept", sometimes as a Czech (black) humour. Go on, please .

 

[destroyer X]

Congratulation Pavel, those simple things usually sounds good!

This BU208, i remember,.... some hi voltage to TV fly Back transistor, to Black and White old television.... good Pavel.!...i like to put this to work in my club.... same volume with a 400 watts Marantz.....of course Marantz at minimum power.... operating class A because of bias... and sounds good!... sometimes we feel confusion.... not perfect because transformers, not all, normally turns the sound a little worst.

regards,

Carlos

 

[PMA]

Hi Carlos - yes, you are absolutely right. The HV TV transistor. Not easy to withstand rectified mains voltage. No power transformer was needed, only one must be a bit careful not to reverse the L and N conductors.

 

[Upupa Epops]

Maybe is better use there only one transistor, best will be IRF 730 with splendid high input capacity, which make wonderful satin smooth sound .

 

[PMA]

Maybe is better use there only one transistor, best will be IRF 730 with splendid high input capacity, which make wonderful satin smooth sound .

You are completely right, simple = better. Unfortunately that time when I designed the amp I was not that experienced to be able to develop it with the IRF730. Maybe you could have given me a helping hand.

 

[mefistofelez]

PMA wrote:

You are completely right, simple = better.

Et tu, Brutus?

M