kao i uvek, lenj da kucam ponovo, pa copy-paste sa Big DiyA:
yup, as I said , bad influence of Cyclotron emanation , all the way from Bubba Bob's Davis ...... 'Talian names popping as mushrooms after the rain
anyway, what's better to put on pizza than mushrooms .......
So, last one in series of autoformer gain amps (you can call them all - M2 on Mushrooms ) , this one differing on outputs being classic BJT complementary pair, so sorta blasphemy in Papaland ......... he sinned heavily eons ago ....... while my Sin is recent........
Anyway, here's funny diagram, showing nothing else than bunch of multilegged fuses and some nice iron
hm, yes, my prototype equipped with first genuine ones I snatched from drawer - 2SA1491/2SC3855 ....... but pretty much any "for Audio amp" complementary pair should work well ........ 2SA1943/2SC5200 , TTA/TTC (newest Toshiba incarnation of 2SA/2SC)
rails +/-23V, Iq 1A5
2nd is clearly neg phase, not seen from my gigglywiggly, but I stumbled on nice routine in LTSpice showing just that behavior and didn't yet found reason to doubt it