That Kaneda Full Symmetry design looks very interesting, I wonder how it is possible to use powerjfets in the output with this design. The top part is a source follower so gets a lot of (pos.) voltage on the gate, drastically increasing gate current that could easily exceed standing current in the VAS.
Have fun, Hannes
Have fun, Hannes
konton's website just moved
it moves to
http://www7b.biglobe.ne.jp/~konton/
>h a
There is an example with SONY's old V-FET:2sk60 by konton.
http://www7b.biglobe.ne.jp/~konton/V-FET.html
or by lambda-con with 2sj18, who is the designer of first schematic of this thread.
http://www.geocities.jp/mutsu562000/hp005.htm
I have only few electrical knowledge,
but I love to build my own DIY audio instruments imitating someone's design like kaneda style.
So,I may be unable to explain enough but I would love to communicate with not only Japanese DIYer but also international DIYer.🙂
Then you can ask me about Japanese sentences...😉
#But...It is well known in Japanese DIYer ,
#Mr. Kaneda strongly designated to build it with his original design from parts to wiring.
#but many parts of kaneda style is already discontinued...ex.2sc960
#it is hard to build genuine Kaneda style instruments...
it moves to
http://www7b.biglobe.ne.jp/~konton/
>h a
There is an example with SONY's old V-FET:2sk60 by konton.
http://www7b.biglobe.ne.jp/~konton/V-FET.html
or by lambda-con with 2sj18, who is the designer of first schematic of this thread.
http://www.geocities.jp/mutsu562000/hp005.htm
I have only few electrical knowledge,
but I love to build my own DIY audio instruments imitating someone's design like kaneda style.
So,I may be unable to explain enough but I would love to communicate with not only Japanese DIYer but also international DIYer.🙂
Then you can ask me about Japanese sentences...😉
#But...It is well known in Japanese DIYer ,
#Mr. Kaneda strongly designated to build it with his original design from parts to wiring.
#but many parts of kaneda style is already discontinued...ex.2sc960
#it is hard to build genuine Kaneda style instruments...
> So,I may be unable to explain enough but I would love to communicate with not only Japanese DIYer but also international DIYer.
Most welcome.
> Then you can ask me about Japanese sentences...
I have a different question though...
Do you have a source for 2SK2394 Idss Ranking 5 ?
Thanks,
Patrick
Most welcome.
> Then you can ask me about Japanese sentences...
I have a different question though...
Do you have a source for 2SK2394 Idss Ranking 5 ?
Thanks,
Patrick
Thanks for the links!
Ouch. Maybe somebody wants to send me his Yamaha B-1 amp, so that I can rip out these vfets 😀
So still not a doable solution 🙂
Have fun, Hannes
Ouch. Maybe somebody wants to send me his Yamaha B-1 amp, so that I can rip out these vfets 😀
So still not a doable solution 🙂
Have fun, Hannes
parts from kashinoki Japan
Hallo Shinja,
do you think kashinoki shop will sell and ship transistors to Germany?
Did not received any answers to my mails.
Regards
Sam
Hallo Shinja,
do you think kashinoki shop will sell and ship transistors to Germany?
Did not received any answers to my mails.
Regards
Sam
Hi,
Kaneta's so to call "Full Symmetry Design" is quite popular in Japan, due to author's long time reputation on designing interesting amps. Recent years, he is using 2SK2554 as output device. Problem of using these low on-resistance MOS-FET is how to stabilize the idle current. Kaneta used thermisters to fix it but still there are a lot of tragedies you can find on webs (blown-out speakers). Honestly, I cannot recommend power amplifiers on this design...
Lateral MOS-FETs, on the other hand, are very stable around ~200 mA idling current.
Kaneta is known to use discontinued devices while strict on parts choice. He specifies not only Tr but also resistors (including the direction of them), capacitors and cables. Many of his Tr choices are impossible to obtain these days (even 20 years ago in Japan, it was difficult).
Have fun!
Satoru
Kaneta's so to call "Full Symmetry Design" is quite popular in Japan, due to author's long time reputation on designing interesting amps. Recent years, he is using 2SK2554 as output device. Problem of using these low on-resistance MOS-FET is how to stabilize the idle current. Kaneta used thermisters to fix it but still there are a lot of tragedies you can find on webs (blown-out speakers). Honestly, I cannot recommend power amplifiers on this design...
Lateral MOS-FETs, on the other hand, are very stable around ~200 mA idling current.
Kaneta is known to use discontinued devices while strict on parts choice. He specifies not only Tr but also resistors (including the direction of them), capacitors and cables. Many of his Tr choices are impossible to obtain these days (even 20 years ago in Japan, it was difficult).
Have fun!
Satoru
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