EL34 SE triode mode A class sch wanted - diyAudio
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Old 21st July 2005, 07:59 AM   #1
trancy is offline trancy  Slovenia
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Default EL34 SE triode mode A class sch wanted

hello...

I was searching around for good and simple sch for triode mode el34 amp, but I am not satisfied with that that i found.
Maybe you guys have something for me?

thanks

trens
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Old 21st July 2005, 10:47 AM   #2
plovati is offline plovati  Italy
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Default from l'Audhiophile

http://www.audiofanatic.it/Schemi/Ti...34SE_12AX7.jpg

I can send You the full article. Cheap good sounding amplifier.
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Old 21st July 2005, 11:38 AM   #3
trancy is offline trancy  Slovenia
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thanks....but this is tetrode way....please, send me if you can...also PSU...IĘd like to see PSU too....tube type if its possible
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Old 21st July 2005, 11:39 AM   #4
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Quote:
but I am not satisfied with that that i found
What have you found? And why weren't you satisfied? That will help us help you...otherwize we may go posting all the schematics that you don't approve of!
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Old 21st July 2005, 11:49 AM   #5
trancy is offline trancy  Slovenia
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I agree,
...actualy, I need as less part as possible , with 6sn7 input and simpliest OTL, PSU with tube....and triode mode


thanks
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Old 21st July 2005, 11:53 AM   #6
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Have you seen my schematic? You could substitute the 6n1p with your 6SN7.

http://basenjes.de/tubes/jbsel34.htm
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Old 21st July 2005, 12:08 PM   #7
plovati is offline plovati  Italy
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Quote:
Originally posted by trancy
thanks....but this is tetrode way....please, send me if you can...also PSU...IĘd like to see PSU too....tube type if its possible

Look again. EL34 is triode strapped. Power supply is tube (5U4). No 6SN7. if You are able to do that can try to design your own driver stage or whole amply otherwise You've to accept what community has.

The whole schematic are somewhere over internet, search Michel Leluaux EL3. I have the full article if You are really going to built it.
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Old 21st July 2005, 12:15 PM   #8
trancy is offline trancy  Slovenia
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Quote:
Originally posted by Bas Horneman
Have you seen my schematic? You could substitute the 6n1p with your 6SN7.

http://basenjes.de/tubes/jbsel34.htm
yes i saw it, but c4s bothers me....
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Old 21st July 2005, 12:19 PM   #9
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Quote:
but c4s bothers me....
Ah ok...just replace with a 22-68k resistor! Aim for around 200-225 volt on the plate...and adjust cathode resistor so that around 8mA runs trough 6sn7. et voila.
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Old 22nd July 2005, 12:05 AM   #10
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Here's another

http://www.tubes.mynetcologne.de/roe...el34set_e.html
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