Not a really good deal. Here are the letters with their corresponding years. So… Marshall had to come up with something to solve this problem…. Just get two cables and plug them into both inputs of the amp. It seems that the early versions of the w — with the old cosmetics already had the cascaded pre-amp.
Power tubes are KT66, 6L6 and
Billy Penn's 300Guitars
The guide below will help you quickly and clearly date Marshall amps and cabinets, without us waxing poetic about their influence. They can easily be converted into Lead circuits as well. H- The result was, as you expected, more agressive amps. The transition to the JMP: It had ECC83 a. You can read more about this here.