Gold mine of DI¥ audio tubes schematics from Japan

[overtheairbroadcast]

Happy holidays, Merry Christmas, Happy New Years! Thank you sound happy for all the great reading.

 

[Soundhappy]

The Crystal Tree / Canal mirai Christmas on Vimeo

Thanks Merry Christmas

 

[Soundhappy]

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JAPAN / Viewfinder Video / KYOTO NARA / November 2014 on Vimeo

 

[Kay Pirinha]

Ooops, not a single tube to be discovered in this video ?

Best regards!

 

[kasey197]

This is super cool but is there anywhere we can see the MJ articles on solid state circuits ?

 

[Soundhappy]

@Kasey197
Articles source Diyer Old Radio Boy San from Japan is interested only by tubes audio
and eventualy some hybrid circuits: tubes mixed with transistors or IC.
Perfect for the vacuum tubes forum section we are in Best regards

Edit : Maybe search on the DIY blogs in Japan about semiconductor's circuits is a solution

 

[Soundhappy]

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[Kay Pirinha]

The last amplifier in this row is an overly intriguing design! Quite in contrast to the first one, as I'll never stop to scratch my head why they try to balance DHT's whose filaments are fed by DC.



Best regards!

 

[Siberia]

Always wanted to say many thank-yous to Soundhappy for this thread. Made some experiences and "connaisances" browsing through these publications. A little story here:

https://www.diyaudio.com/forums/analogue-source/129126-simplistic-njfet-riaa-1877.html#post6538836

 

[Soundhappy]

@ Siberia

Thanks for kind words and your travel in Japan story and photos sharing Enjoy

 

[Soundhappy]

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[Soundhappy]

 

[Soundhappy]

Have a good time DIY articles updates HOME

 

[astouffer]

That design with the separate cathode and screen windings is pretty interesting. Wonder if that is a custom transformer?

Actually not custom. http://www.someyadenshi.co.jp/HP/sites/default/files/tmp/12-32-1 _3.pdf

 

[Soundhappy]

@ Astouffer

Congratulations with some research work you find it ! Thanks for the link Have a nice day

 

[gideon1990]

post631, is that seriously an exposed cathode resistor with 90 volts across it? Seems a bit irresponsible

 

[zintolo]

Interesting SE design, easily implementable as PP as well, at page 109: r-tec2102_(07)superT-ULD-amp_KurodaT.pdf - Google Drive

 

[analog_sa]

post631, is that seriously an exposed cathode resistor with 90 volts across it? Seems a bit irresponsible

A good example that Japan is still not a part of the nanny world despite efforts of well wishers

 

[Demonkleaner]

A good example that Japan is still not a part of the nanny world despite efforts of well wishers

 

[Soundhappy]

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