The seller of goods has zero feedback as a seller, and only one as a buyer.
I can testify for Pras1170. I ordered 2@ THF-1S. Seller had good communication, tracking, and SITs arrived as promised. Been too busy getting our son ready to move out and start his first job to provide feedback.
I have 12,000. That is why I ordered 3,000 brackets that hold 4 each.
As to VFETs, it's gotten pretty thin. I have about 400 of the Sony VFETs
allocated for the last project, which is 400 channels, plus a few for repair
and my own use.
SIT-1 transistors are also on their last production release. The SIT-3
is slated for 250 amplifiers. Again, I have rejects and a few allocated
for repair and R&D, but that's it.
After that, a few very large parts, 2SK77B and other Tokin 300W devices,
not enough for a production run.
3000 brackets = 1500 stereo amplifiers
Holy soldering smoke !
No sorry I don't sell my matched pairs.
Sit´s and Vfet's in my drawer wait to be used in new build amplifiers.
One council 🙂
Better buy transistors from new old stock source who get them packaged in the same box.
Big chance they are made from the same semiconductor wafer and have similar characteristic
so it's more chance to find good matched duo.
Ask seller for matched pairs and try make offer to buy more for less money. Best regards
Look at this : New Spot TOKIN, Precision Paired V-FET THF-51S THF-51 JAPAN 1PCS/LOT | eBay 😀 Enjoy!
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We get plenty of Hi-Fi designers who can hear audio differences and because
this designers & producers are of superior quality become relatively rich.
Back to topic yes vfet's are rare but today we can buy hundreds on line from good source.
Price is less 10% of NOS triode made by Western Electric and have 90% of life span more.
After Iron Amp and SIT Némésis with the output transformers
any experiments with autoformers at the transistors amp's outputs ??
Interesting John Broskie article :
Autoformer Math & More Super Triode
any experiments with autoformers at the transistors amp's outputs ??
Interesting John Broskie article :
Autoformer Math & More Super Triode
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I watched the video's but did not hear any news about the V-fet SE amplifier. I do hope it is coming.