C'mon David, 'fess up, mate - what the heck is it?
I like to label things properly in my RM library...
I ‘think’ it’s from 1966 - 1968. I met Jim Marshall, in 1992, and he signed it. He said it was likely in between those dates. It might be a JTM 45, and it has a rectifier tube along with the two power tubes and three preamp tubes. It’s a small box, not a 100 watter, but it is all original other than one cap tht looks like it got changed somewhere along the way. It runs hot, so the plate voltage is higher than any other Marshall I have. It seems to be voiced like a Superbass and not a Superlead.
I’m going to call it a JTM45. It sounds boring and clean until it is dimed, and in between 6 and 10 is where the magic happens. but like I said, the bass got pulled back, so did the mid. I went straight into the channel 2. Channel 1 does nothing for me.
For some reason, I keep coming back to this profile.