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and, having acquired Natal Drums, drums and bongos.

It was founded by drum shop owner and drummer Jim Marshall, and is now based in Bletchley, Milton Keynes, Buckinghamshire.

According to Jim, Ritchie Blackmore, Big Jim Sullivan and Pete Townshend were the three main guitarists who often came into the shop and pushed Marshall to make guitar amplifiers and told him the sound and design they wanted. then expanded, hired designers and started making guitar amplifiers to compete with existing amplifiers, the most notable of which at the time were the Fender amplifiers imported from America.

These were very popular with guitarists and bass players, but were very expensive.

Welcome to Amp Archives, a photographic archive of audio amplifiers for reference.

You can search as well as browse the archives using the main navigation menu.

To many, the most celebrated AC-30 was the top boosted 1964 model manufactured by Vox under the original JMI ownership.

Jim Marshall thought he could produce a cheaper alternative to American-made guitar amplifiers, but as he had limited electrical-engineering experience he enlisted the help of his shop repairman, Ken Bran, an EMI technician, Dudley Craven, and Ken Underwood.

The GZ34 rectifier tube was eliminated, and the cabinet was made of particle board.

All one can say is that these cost saving measures probably saved the AC-30 from extinction.

Many tube amplifiers will have a tube chart within the amp itself.

This may also be helpful when dating a vintage tube guitar amplifier.

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