Gold mine of DI¥ audio tubes schematics from Japan

[carlthess40]

Does anyone on here build any of these find tube amps? I would love to have a set

 

[multi]

sadly the 3cx300a1 is unobtanium
I built the 3Cx300a amp before the 3cx300a became unobtanium about to build the second channel. lot of work but wonderful sound very good damping

You can use the 4cx250 or 350 as triode told you Get more power than the 3cx300
Phil

 

[indra1]

sadly the 3cx300a1 is unobtanium...

RF Parts still have some Svetlana 3CX300A1 in stock.

 

[Soundhappy]

31 August DIY articles update 2009-10

 

[hpeter]

sadly the 3cx300a1 is unobtanium
I built the 3Cx300a amp before the 3cx300a became unobtanium about to build the second channel. lot of work but wonderful sound very good damping

You can use the 4cx250 or 350 as triode told you Get more power than the 3cx300
Phil

okay but how about max ug2 pg2 ratings until it melts ?

 

[analog_sa]

31 August DIY articles update 2009-10

Does anyone understand how the cap multiplier in the 2A3 circuit manages to lose a 160v?

 

[multi]

okay but how about max ug2 pg2 ratings until it melts ?
Sorry; I should have written.up to the max screen grid limits.
I read on the internet.Rp is near 250 ohms. G2 and Plate should be limited to 400V. Looks like 65 Watts output in 2KCT load.

I run the 3cx300 at 500 volts for 40 watts class A as recommended by Svetlana

 

[Soundhappy]

1 and 2 September update 2009-10

 

[Soundhappy]

3 September DIY article update 2011-12

 

[Soundhappy]

4 Septembre articles update 2011-12

 

[Soundhappy]

5 September update 2011-12

 

[Soundhappy]

6 September 2018 articles update 2000

 

[Soundhappy]

7 September DIY articles update 2001-2002

 

[Soundhappy]

Enjoy

 

[Soundhappy]

8 September news 2001-2002

 

[Zoran]

4 Septembre articles update 2011-12

is it 100TH anode curves on the scope photo?
please send some link?
Thanks

 

[Soundhappy]

MJ1211_(03)100TH-line-EQ-amp_SakumaS.pdf - Google Drive

Curves on the scope are not in relation with 100TH

EIMAC

http://www.tubecollectors.org/eimac/archives/100th(44).pdf

100Th and 805 Tube Amplifier Se 40W+40W

Have a good time

 

[Soundhappy]

....please send some link?

VinylSavor: ELROG
Best regards

 

[Zoran]

So what tube anode chrs are on the scope?
Some elrog model? vat are the values of Ua Ia axis and -Ug steps?

 

[Soundhappy]

It's vintage 76 triode curves
VinylSavor: Tube of the Month : The 76