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tooppy

Member
2012-02-20 9:43 pm
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 ?

All DIY projects was and are made with obtainable transistors.
Just they less actual after 8~10 years for example SemiSouth :D
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 :Olympic:
edit: last ACP+ preamp use actual mosfets https://www.mouser.fr/ProductDetail...2pyFaduinjWF4iLQYB%2B0BAXbsAjsfak2QDle%2B5J8= Enjoy!
 

U230421

Disabled Account
2017-02-07 1:54 pm
You can try to build a simple Pass-alike amp with it, but lots of experimenting is promised. Keep the fire extinguisher at hand.
Specs are simple and straightforward though. I think it can work.
 

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