It should be a very “normal” Sun Audio triode amp, which can be operated with 2A3 and also with a 300B as power triodes, as I have built it many times before. But then all came differently! Carsten Bussler had the idea that he would like to use his collection of 2A3H. At this time the power amp was already completely assembled, tuned and played perfectly. Then the new journey with the 2A3H started! It was not so easy to integrate these power triode into the Uchida. More details and pictures can be found on the blog of Carsten Bussler – 2A3 Maniac strikes back
The tube amplifiers of Sun Audio, Japan are now available at Acoustic Dimension in the Netherlands.
Mr. Peter de Bruyn
New Mono power amps
In the product range added with a few changes. The both new monoaural amplifiers are very interesting by the strong driver stage and the interstage transformer.
New are two monaural amplifiers:
- SV-2A3EPX (2A3 PP amplifier with interstage transformer)
- SV-2A3TSX (2A3 PSE amplifier with interstage transformer)
I rebuild and build very often these Uchida / Sun Audio triode amps, so I made pictures from the rebuildung procedure. It´s published on the 2A3-Maniac blog of Carsten Bussler.
We just designed a new parts for the Sun Audio amps. The parts are for the improved hum balance adjustment and brings also high quality teflon sockets for the 2A3/300B tubes. We manufacture those parts on our own maschines.