Did you not read my post HTH? It's not a complete list it's a simple summary ;)
...(I'll avoid all the minute details and keep it general)...
I've updated the post to include the 2203/2204 references for Viking. Plus I've added the Silver Jubilees...
And during '67 then changed the cathode arrangement on the first gain stage to... :roll: :lol: I don't read stuff properly - I still skip-read, it's a hangover from my Uni days
The JTM50s do have a seperate model number so I thought they were worth mentioning. They were the first solid state rectified Marshalls afterall and are the first instance of THAT EL34 Marshall RAWK tone imo.
The JTM45s changed to EL34s late on, but the valve rectifier still makes a noticeable difference, as did the output transformer change for the EL34s (rarther than the earlier KT66 OT)
The Majors and Pigs I just put in to wind you up :lol:
:twisted: