el34 in an 800

[Pgraf88]

i have an 800 that has 6550s in it will i be able to put el34s in it? ive been told marshalls dont always have a wide swinging bias adjustment.

 

[SatelliteAmps]

Someone (a tech or yourself if you are competent at working on the insides of amplifiers), will have to modify the bias supply to make EL34s work properly in that amp. There are tons of sites on the web, and a few threads on here that will walk you through it, if you are capable of working inside the amp.

 

[Roe]

yes, you may have to change bias splitter, bias resistor and nfb