baby aksa yan
yup p61 + vbe + base suckout + 15pf mod = aksa 55
You missed it?? I thought you didn't want to show the details. Remember that on the post #340 you cannot see the value for some components.Like I said in my earlier post in this thread, I doubt that you can achieve a quality close to AKSA with your simple feedback scheme. My AKSA clone uses all the components displayed in post #340 plus 2 more components. Yes, I use Vbe multiplier while in original AKSA I guess diode string is used instead of transistor.
Jay,You have done a very good job of copying the original AKSA, it seems, so you can see why I moved on..... very hard to keep these good designs secret!My more recent work is much better than the AKSA, and I do not ever share the details in public forums... but even so, I can assure you there is more in your AKSA yet.Sayang tak bisa bercakap-cakap di restoran di Blok M tentang hal-2 audio......Hugh
Alam nyo nakaka-frustrate magkagusto sa isang design in which later on mafind-out mo na incomplete pala yung published design...nung una na-attract na ako dito sa design ni Hugh Dean pero nadisappoint ako. It seems to me Hugh Dean was not that cooperative (helpful?) sa mga gustong mag-DIY ng kanyang design. Para namang pinahuhula niya sa mga DIYers yung totoong disenyo, anyway wala rin naman tayong magawa kung ayaw niyang makipag-cooperate since commercially published ang kanyang product.
the AKSA topology was used in many early Japanese designs circa 70's pa, at that time lagi akong nagrereasearch sa National Library..........i do not think Elliot nor Hugh Dean can claim to have invented it....the difference is the attention to details in the later years....Daniel Meyer's Brute70 power amp"at the time, LTP input stage was not yet in fashion, but the bootstrapping is evident, also quasi-complimentary is used, Motorola has yet to come up with pnp power trannies...
yung mga naunang amplifiers ganyan ang topology....the single tranny input receives feedback from the output node by way of its emitter....dual rails negating the need for output cap....those were the days....i built my first amps using this topology in the 70's...
^ sir tony where did you get that images? im a bit interested on the old ones. baka makakuha ako ng ideas.and ung mga transistors na yan pde po bang i sub ung mga transistors nowadays?