ANKORU - AN by audionote

An amplifier costing a fortune , for what ?

silver wound output transformer ( i think i confuse with ongaku ) ? The chinese 845's ?

its a nice amp , no electrolytics are bypassed though , the 300B is cathode biased and capacitor coupled from iuts driver , they used interstage coupling to the 845 , they had no other choice if they wanted to be able to drive it properly .

the high voltage is nicely high for the 845's , tougher to drive and with 360volts only on the plate of the 300B - its cathode voltage

only 300volts left , it is not easy to drive and my guess is that the 300B will clip before the 845's .

the heater supplys have smoothing of current peaks , and on a positive note , all is tube rectified for the high voltages

The powersupply has lots of caps in series of small value ( for such a power amp )

The parallelling of the outputstage , makes the transformer choice easier .

 

 

I

Copyright 2002 Benny Glass webdesign for info : sales@diyparadiso.com