Designing an EL34 Class A Stereo Amp

[Guest]

[quote author="CJ"]

Move all small children away from your monitor.

Hang on.....[/quote]

 

[LazyOne]

yeah k i got your point.... but the 6as7 is a tube with some nice things like low plate resistance.... it is dual triode also...
i have some 813 tubes here so point those are a little more beefy....(like 2kv on anodes ans something in the 300w rms )

 

[Guest]

"Sir, what do you want from a taxi, to have chess-matt painted, or a comfortable ride?"

Less turns in the primary for your triode... No big deal...

Did you try LS-50/EL152/GU-50 in triode mode?

I did not.

But I love them in pentode PP mode. 120W RMS from one couple.

 

[CJ]

the beef:

http://vacuumbrain.com/The_Lab/TA/Tubes/6384.pdf

 

[LazyOne]

i think i have a bigger one here

or

gonna build an amp one day with four of those beasts the problem is finding a good output transformer that can handle like 5kv of peak insulation
(anode is around 2kv so normal voltage it must withstand is 4kv in pushpull)
its gonna be a big one that i know for sure

my tube is bigger the your'es :green: just kidding

if you light it up you need 10V @ 5A per tube
thats like 50w of heater power
for a stereo pushpull it would be like 200w only for the heaters....
i wonder wat a PPP would do for bass guitar.....around 600w's thats gonna hurt...

and now back to real i don't have mony for such transformers so.....but indeed the 6as7 isn't that beefy but i think it can sound good.


ow yeah the plate dissipation of the big one is 65w but it depends a little beceause it is so robust it can easely handle peaks. for icas they sometimes specify 100w of plate dissipation....

 

[Kid Squid]

Now , Now, Chaps,

ther's no need for fighting about the size of your toobs :grin:


:thumb: