I consider this part of the DIY Audio forums as a research center run or at least driving by Nelson and his wonderful electronics proposals.
I noticed that most of it are based on "non obtainable" or old new stock of transistors.
Why that ? Can't we find in the actual productions some interesting components ?
For instance, things like this :
CG2H40xx & CG2H30xx GaN HEMTs - Wolfspeed / Cree | Mouser France
I have no idea if these could even be placed into a musically interesting amp, but here is the idea.
I noticed that most of it are based on "non obtainable" or old new stock of transistors.
Why that ? Can't we find in the actual productions some interesting components ?
For instance, things like this :
CG2H40xx & CG2H30xx GaN HEMTs - Wolfspeed / Cree | Mouser France
I have no idea if these could even be placed into a musically interesting amp, but here is the idea.
for little more , I would ask AnthonyA where they found them
see 2SK77B thread
ignore fact that I'm cheapskate , so that amount is no-go for semiconductors , for me
see 2SK77B thread
ignore fact that I'm cheapskate , so that amount is no-go for semiconductors , for me
..I noticed that most of it are based on "non obtainable" or old new stock of transistors.
Why that ? Can't we find in the actual productions some interesting components ?
All DIY projects was and are made with obtainable transistors.
Just they less actual after 8~10 years for example SemiSouth 😀
Anyways contact EUVL in Group Buys if You want build with this power jfet's.
For exotica SIT's we get verified sources with sellers in Japan etc.
https://www.ebay.com/sch/watanabeto...Y8MAAOSwnbZYDFkx&rt=nc&_trksid=p2047675.l2562
DiyAudio store for matched small signal jfet's
Linear Systems Matched JFETs – diyAudio Store
and Diyers can buy today from Mouser IXYS transistors
IXFN140N20P IXYS | Mouser France
and J112, J113 Fairchild jfet's at very resonable price.
IRFP240PBF and IRF9240PBF cost ~ 2€ pcs.
IRFP240PBF Vishay / Siliconix | Mouser France
OK Greedy Boyz always search for new fresh or NOS but extraordinary linear audio transistors.
Congratulations if You discover a new semiconductors Champion's

edit: last ACP+ preamp use actual mosfets https://www.mouser.fr/ProductDetail...2pyFaduinjWF4iLQYB%2B0BAXbsAjsfak2QDle%2B5J8= Enjoy!
A project very much in the spirit of Papa's designs is Uncle Mike's Mofo:
Build This MoFo!
Parts are cheap and readily available.
Oh, and it sounds mighty fine.
Build This MoFo!
Parts are cheap and readily available.
Oh, and it sounds mighty fine.
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