18 watt jcm 800. The preamp is all 2104/JCM800 but the power amp consists of the stock long tail pair phase inverter feeding either a pair of 6V6 or a single 12AU7 power tube in true push-pull. The TMB is based on the circuit used in vintage Marshall models 1958, 1973, and 1974 (more affectionately known as the '18-watters'). com was a forum with people building all kinds of variants of the 18-watt out of all kinds of stuff. How the Marshall JCM 800 line differs from previous models The new design of amps replaced the EL34 power tubes in its 50- and 100-watt chassis with 6550 power tubes. For most of the guitar amps you can refer to the original manufacturer guitar amplifier's manual. Also, what did you do with the high/low inputs keep it stock, go to single jack, or modify low for more usuable gain? Thanks for your replies guys. Instruction manuals and kit build layouts for Ceriatone Amplification guitar amplifiers and effects loop buffers. com JCM-800 2204 preamp with an 18 output has been done, or at least variations of it. We only have manuals for amps that are our own exclusive designs. British Style 18W TMB Guitar Tube Amp Kit Mojotone's 18-Watt TMB Amplifier Kit addresses a common mod made to a classic circuit, but with a few new flavors of our own. bl4 ad0 iueu 1t xx pbns agavk p4 jrnarcc nqg5p