Gold mine of DI¥ audio tubes schematics from Japan

[Soundhappy]

DIY articles update 2007-08

 

[Soundhappy]

DIY articles update 2007-08

 

[Norelco]

Hi,

Currenty I’m looking for a simple diagram for SET VT25, I already have a pair of Tango FW20 14S OPT for the project. I’ve seen the Aki Ichiro VT25 Amp design already, but it looks so difficult for a newbie like me. Thank You

 

[Soundhappy]

@ Norelco

What about this one ?

MJ0006_(11)special-feature-9th_10Y-VT25-single-power-amp.pdf - Google Drive

 

[Norelco]

Hi Soundhappy,

Thank you very much, i will check the parts availability.

 

[Soundhappy]

Another possibility is r-tec1204_(06)VT25-super-KNF-single-power-amp_NagashimaK.pdf - Google Drive

 

[Norelco]

Thank You

 

[Soundhappy]

Hi,

Currenty I’m looking for a simple diagram for SET VT25, I already have a pair of Tango FW20 14S OPT for the project.
I’ve seen the Aki Ichiro VT25 Amp design already, but it looks so difficult for a newbie like me. Thank You

MJ1608_(04)SunAudio-SV-VT25-Limited_YanagisawaM.pdf - Google Drive

In my humble opinion VT25 triode is great to use in a preamplifier for example :
http://www.bartola.co.uk/valves/2017/03/12/vt-25-dht-preamplifer/

Amplifier power stage is better to build with 300B triode ~ 8 watt´s or 211, 845 ~ 20 watt's

 

[nicoch58]

Exodus II | VT52.com

 

[Norelco]

Hi Soundhappy,

Sun Audio VT25 looks tempting. [emoji106]

Thanks,

Norelco

 

[Soundhappy]

update Part 1 A 2007-08

 

[Soundhappy]

update Part 1 B Enjoy

 

[Soundhappy]

update Part 2 A 2003-04

 

[Soundhappy]

update Part 2 B Thanks to Distant Past Old Radio Boy in Japan

 

[Soundhappy]

Nice update DIY articles 2019-2020

 

[dady]

Photo of VT-25 DIY finish amplifier is superb quality work
r-tec1710_(03)VT25-single-stereo-power-amp(3)_AkiI.pdf - Google Drive

Can you translate this article?
Best Regards

 

[Kay Pirinha]

update Part 2 B Thanks to Distant Past Old Radio Boy in Japan

Have a look at the first two pics. The 6C33S's are fed directly (without insulation) from the mains !
Best regards!

 

[analog_sa]

The 6C33S's are fed directly (without insulation) from the mains !

What's the big deal with that? If, for some reason, there is an internal short between heater and cathode you will definitely know it

 

[Soundhappy]

Can you translate this article?
Best Regards

@ Dady amigo

You have possibility translate text from image or file with this specialized software :

Yandex Translator

Have a great time

 

[Soundhappy]

DIY articles update 2019-2020