Marshall Museum --- Mr. T's Collection vol.2
Item#2
MODEL :JTM45
SERIAL NUMBER:1013PA
For PA. Made circa ’62. This is the actual bare JTM45 that was placed in front of the wall of JTM45 amps in the photo shown on page 99 of Mike Doyle’s “The History of Marshall.” Two knobs have been replaced. Mr. got this from a collector in Los Angeles. He says, “I was burning with a sense of mission to collect Marshall amps made in this era.” Thanks, Mr. T! His sense of mission makes Japan one of the major Marshall-collecting powers in the world. The height is different from the former Offset.
The rear panel. In accordance with the height of the cabinet, the width of the panel is wider than the former JTM45.
The inside of the amp. The power valves were pulled out in the second photo to show the inside. The power valves were replaced with 7581 (6L6).
The installed valves. The ECC83 pre-amp valve and GZ34 rectifier valve are original Mullard valves. The power valves on the left are Philips 7581 valves, which were replaced.
The chassis of the amp. On the right is the GZ34 rectifier valve. The mains transformer in these days had a voltage selector on the top.
Item#3
MODEL :JTM45
SERIAL NUMBER:None
This is a so-called “White Front” that was made before the JTM45 logo was placed on the front. The specifications are the same as the Offset except for the cabinet. However, the knobs seem to have been replaced. Mr. T got this from a Japanese friend in London. This is an unforgettable Marshall for him because it was his first coffin logo model. The output transformer has been removed and is presently being restored.
There is Jim Marshall’s autograph on the rear panel. Mr. T got it when Jim visited Japan in 1990. It has two loudspeaker outputs because it was a PA amp.
To Be Continued.....












