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-   -   EL34's in an AC30 (http://www.ultimate-guitar.com/forum/showthread.php?t=1566087)

Alphaform 10-03-2012 11:53 AM

EL34's in an AC30
 
If I switched the 84's to 34's in my AC30C2, what kind of tone would I be more expecting? Like a more Marshally crunch?

I was thinking about doing this. Although I'm unsure if it's even possible

Cheers.

Cathbard 10-03-2012 11:56 AM

Can't be done. They don't even use the same sized sockets.

Alphaform 10-03-2012 11:57 AM

Quote:
Originally Posted by Cathbard
Can't be done. They don't even use the same sized sockets.


Yeah thought something wouldn't work with it.

Ta anyway.

GABarrie 10-03-2012 11:58 AM

a) the sockets are the wrong size so you would need to punch larger holes in the chassis and fit new sockets

b) the power transformers won't be able to handle the higher current draw, or the higher power output and the impedance will be wrong

c) the cathode biasing resistor value would be wrong and probably not high enough wattage rating to handle the current, plus would probabaly be far too low a bias and would result in the 34s red plating

in short... lots of work, money, and you will end up destroying your amp

Kevin Saale 10-03-2012 01:02 PM

Quote:
Originally Posted by GABarrie
a) the sockets are the wrong size so you would need to punch larger holes in the chassis and fit new sockets

b) the power transformers won't be able to handle the higher current draw, or the higher power output and the impedance will be wrong

c) the cathode biasing resistor value would be wrong and probably not high enough wattage rating to handle the current, plus would probabaly be far too low a bias and would result in the 34s red plating

in short... lots of work, money, and you will end up destroying your amp


Pretty much. Not to mention, it'll still sound more like an AC30 than a Marshall :haha Those 18w marshalls don't sound like AC30s even though they run el84s, just a little food for thought.

Cathbard 10-03-2012 01:05 PM

Quote:
Originally Posted by Kevin Saale
Pretty much. Not to mention, it'll still sound more like an AC30 than a Marshall :haha Those 18w marshalls don't sound like AC30s even though they run el84s, just a little food for thought.

Indeed. An 18W'er sounds like a plexi and is running EL84's.


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