hey!
i found a couple of substitutes to replace the 100k pots. and am considering using them if i cannot scalp some original sunn pots from an old amp or whatever.
however, the level pots are the real oddballs, 1meg double linears that are nice and tight little blue boxes, not stacked or whatever....so, if you in fact do have an old pre-amp, i would definitely be interested!
thanks for your time and effort.
take care,
j.
p.s. the amp is a '79 if that helps...