1967-68 Marshall Plexi PA 100 watt (4 channel) amp head. Original transformers (lay down main) and choke. Normal maintenance over the years (filter caps, switches, some capacitors and resistors) Circuit board is clean and full of mustard capacitors. Channels 3 & 4 have been voiced closer to super lead spec. Upgraded power cord and selector switches. Closely matched quad of electro harmonic power tubes biased at 60% have low hours on them. Preamp tubes are vintage RCA’s. Small cosmetic blemishes and normal wear and tear on the cabinet. Back panel is a high quality mojo tone replacement. I had this amp for 25 years with no issues. Still putting out over 520 plate voltage. Amazing vintage Marshall plexi tones (cleans, crunch, creamy overdrive, huge bottom end) and great with pedals. See many detailed photos. Recently checked out by very reputable amp tech (Zink amps) and it’s good to go. I’m downsizing my extensive vintage Marshall collection and made hard choice to let this great amp go. Will be professionally heavy duty packed and shipped. Please contact me with any questions.