1965 Marshall JTM45 MkII Lead White Panel 50W Plexi

Please have a close look at the pictures as these form part of our description. Many detailed inside and out pictures available upon request.
 
One of the coolest amps ever made and the mother of all Marshall amps!
 
This 1965 JTM45 is such cool find! Small Gold (repro) script Logo, classic mid 60's green levant tolex, white back panel with "LEAD" and serial 3278, gold Plexi front panel with JTM45 and MkII, folded aluminium chassis, C4N capacitor dates (third quarter of 1964), voltage selector on lay down power transformer, yellow/orange indicator pilot light, all seems original to this classic amp and dates it to 1965 except for the Drake 784-139 output transformer which changes the power tubes to EL34 instead of the Drake 784-103 which combines with KT66 tubes.
 
Tubes are new TAD 3 x 12AX7 preamp, 2 x EL34-STR Redbase power, GZ34-ST Selected tube rectifier but if preferred we can upgrade the current TAD tubes for old stock Mullard tubes with perfect readings and values at an extra.
 
The amp was serviced by our tech and the necessary parts were changed (resistors, some cables, screws, capacitors etc) but for the most part this beaty is original. And the sound? Check out Johan Segeborn on youtube. It's fat, warm and very responsive. Magic in a box!
 
 
The Marshall JTM45 is the first guitar amplifier made by Marshall and possibly one of the most famous sounding amplifiers as it launched British Blues-Rock music in the 1960's.
 
The JTM45 was first handmade in 1963 in an all-aluminum chassis by Ken Bran, Dudley Craven and Ken Underwood. Because of its power, Marshall decided early on to build it as a head, with a separate 4×12 cabinet with Celestion speakers. The amplifier itself was based on the also legendary Fender Bassman. Early versions used 6L6 or 5881 valves - a US version of the 6L6 in the output stage - later models used KT66 (from 1964), EL34 (from 1966), or KT88 (from 1967; in the 200W Major), and ECC83 (12AX7) valves in the pre-amplification stage. Dudley was responsible for the changes from the Fender to what is now known as the JTM45.
 
Significant differences between the Bassman and the JTM include the all-aluminum chassis, a 12AX7 valve as the first in the chain (the Bassman has a 12AY7), the 4x12 Celestion speakers with a closed cabinet (compared to open-backed 4x10 Jensen speakers), and a modified negative feedback circuit which affects the harmonics produced by the amplifier. As Ken Bran later said, "The JTM also had different harmonic content, and this was due to the large amount of feedback that Dudley Craven had given it."
 
By the mid 1960s, the JTM45 had become so popular that it began to supplant the ubiquitous VOX amps, even their AC50, though it was just as powerful.
 
The JTM 45 became the basis for many subsequent Marshalls, most notably the Marshall 1962 combo, later referred to as the "Bluesbreaker" due to its use by Eric Clapton with John Mayall's Bluesbreakers. The JTM45 was the to go to amp for legendary musicians like Clapton, Green, Hendrix, Young, Townshend, Entwistle, Moore and even Gilmour used one at times.