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 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 ………



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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