There are a few vendors selling 2SK389s or "matched" equivalents, but some of the former have been less than trustworthy and some of the latter aren't matched terribly well. Where did you get yours?
Bought a load of 2SK170 and matched them.
Sometimes I use LSK389.
Later on I got my hands on a load of 2SK369 and matched them, which turns out to beat even the LSK389.
The 2SK369 is rather hard to come by though, and fairly expensive if you manage to find some.
Magura 🙂
Sometimes I use LSK389.
Later on I got my hands on a load of 2SK369 and matched them, which turns out to beat even the LSK389.
The 2SK369 is rather hard to come by though, and fairly expensive if you manage to find some.
Magura 🙂
2SK369 (matched pair) is not really a direct replacement for 2SK389. It has about twice the transconductance and twice the capacitance. 2SK170 is a better substitute. There are still plenty of sources for both. And if you look hard enough, you can still find 2SK389, at a price. 2SJ109 is a different story .....
See also :
http://www.diyaudio.com/forums/solid-state/135154-next-best-thing-2sk389-2sj109.html
http://www.diyaudio.com/forums/swap-meet/131284-toshiba-2sk170bl-sales.html
http://www.fetaudio.com/?page_id=241
Patrick
See also :
http://www.diyaudio.com/forums/solid-state/135154-next-best-thing-2sk389-2sj109.html
http://www.diyaudio.com/forums/swap-meet/131284-toshiba-2sk170bl-sales.html
http://www.fetaudio.com/?page_id=241
Patrick
B&D Electronics has original parts for most Japanese transistors. I've been
buying from them for 15 years or so. Excellent source.
I hope they're stock does not become depleted now that I let the cat out of the bag. 😀
B&D Enterprises - electronics, projection lamps for hitachi, sony, mitsubishi, panasonic, samsung
buying from them for 15 years or so. Excellent source.
I hope they're stock does not become depleted now that I let the cat out of the bag. 😀
B&D Enterprises - electronics, projection lamps for hitachi, sony, mitsubishi, panasonic, samsung