Hey Guys! I’ve recently acquired this 1969 Marshall metal face 50w Plexi amp (serial: 3205A) for a really good price, but it had some modifications through its life. It was modded in order to be the perfect gigging amp for clubs and I was told that all of these mods are 100% reversible. Please take a look at the internals and let me know what you think! There are two basic modifications. The amp received a foot-switchable volume boost circuit for solo boosting with an independent volume pot (you can see on the faceplate pic). The foot switch plugs into the lower ’volume II’ input and the pot was put into the place of the higher ’volume II’ input – it looks tidy and reversible. The second mod was a 2204-style master volume: the stock ’volume I’ pot became the ’pre-amp gain’ and the stock ’volume II’ became the ’master volume’, just like on a 2204. I guess the amp’s circuit was changed internally to be exactly like a 2204. There were some hardware modifications too. I was told that the laydown mains transformer had been changed to a period correct stand-up one. It’s a Drake 1202-164 transformer. I suspect that the output transformer was replaced too. It’s the correct Drake 784-139 tranny but it seems to be a later period one, likely from a 1973-74 Plexi. Anyone can confirm this? Because I’m no expert, my questions are the following for you guys. - Do the possibly ’73-’74 trannies change the characteristic ’69 tone in any ways, despite being the exact same Drake models that were used in ’69? -Also, can you confirm the mentioned mods in the circuit and their reversibility? Do you see any other modifications in the amp? I don't want to reverse these mods, I'm just really curious about the state of the amp and everything about it. I love how this thing sounds! Thank you in advance for your help!