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1967 Marshall plexi early JMP 50W, all Mullards
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Jan 2024 edit: Had been trying to sell this as a complete set, but no takers, so am now selling the amp alone.
1967 50W JMP transition model:* GZ34 rectifier
* EL34 power valves
* all valves - including preamp - are Mullards
* 784-139 output transformer
* PA circuit
* same spec as 'black flag' JTM50
Excellent condition with some minor tolex marks. Circuit is lightly restored (e.g. plate resistor, bias caps, bias trim-pot, etc). Original TXs, choke, valve sockets, etc. Some minor hardware changes (screws, one rubber foot). The amp was bought by me 20+ years ago from the original owner.
I will put together a full folder of photos. These are just quick iPhone low-res and grainy snapshots, as it's dark and grey.
Price:
£5500 £5000 4500
Location: Cambridge
Many more and higher resolution photos of the amp here:
https://www.icloud.com/sharedalbum/#B0c5oqs3qGGPcpX(NOTE: these pre-date the mild restoration I did. So don't show the added bias trim-pot and a couple of resistors reverted to original spec.)
Comments
https://www.icloud.com/sharedalbum/#B0c5oqs3qGGPcpX
(FWIW, I've had a lot more interest in the G12M 20Wers than for the amp!)