As you maybe know , maybe not – I’m begging Papa all these years for adoption ….
I’m not exactly desperate to live in US of A , but idea of lifelong exploration of his Ark is sooooo tempting …… 😉
However , maybe my nagging is main reason why he is throwing me da bone here and there , to keep me busy . occupied , puzzled ……. and feeling not worthy ….. 😉 One of previous occasions of thrown bone is Papa’s Koan amplifier , pretty well presented at diyaudio.com in these two threads : Papa’s Koan ….. was Papa’s Surprise and Babysitter for Papa’s Koan .
One of these days I’ll put some of that info here , in my blog .
Now , it’s time for new bone ………
Never really made it , but I was always ( still I am ) curious , especially with “improved” version list of parts – where big bjts are used as small signal parts.
It’s from so ancient times that I really can’t remember from where I got it ……… if you have original article , maybe even about accompanied output amplifier , I’m very interested …….
– this is edited previous post , added some text scans and few files found on net … same as schematic ( without values ) for Apex amp ; I think I have that article too , even if incomplete , so when and if I find these pages , I’ll scan and post it
Prototype …….. 😉
Kudos to late Allen Wright ……. http://www.vacuumstate.com/
prototype ………. 😉