I had two 200-S amps over the years and both were EL34's. I seen a few more in auctions and they were also EL34 amps. I think the 200-S is the only guitar amp that Guild used EL34's. In the late 1960's Guild made a PA power amp for rack mounting with a pair of EL34's.

M

Hi E-TK; the fact that the cathode resistors might not be original doesn't necessarily mean it was converted to an EL34 amp; if it's got a Fender PT in it then somebody spent some quality time with it and that could have included updating the cathode resistors and bypass caps if the amp uses them. Got some pics of you amp? CJ

[quote="Emperor-TK"]

My schematic is posted here:
Guild 200-S

[quote]


Nice Drawing. What program did you use to make it with?

Hello all, first post here. I really enjoy this site and this post caught my eye. I'd like to learn more about the Guild Model 200s / Twin amps

I just missed out on buying one of these 200s amps last week...I showed up at the store just as they were closing and it was gone before I got back a week later. Unfortunately, I never got to play through it before it was sold. It's unlikely that I will find one anytime soon but can anyone describe the tone of this amp? Does it do cleans well? It seems that it would make an awesome stereo amp but I am not certain how good the EL34 clean tone would sound.