Contact us on 07970061897 or
  • Vintage 1964 Vox JMI AC50 MKII Small Box Valve Amplifier
  • DSC_0122
  • DSC_0123
  • DSC_0124
  • DSC_0126
  • DSC_0127
  • DSC_0128
  • DSC_0129
  • DSC_0125
  • DSC_0130
  • DSC_0131
  • DSC_0132
  • DSC_0133
  • DSC_0134
  • DSC_0135
  • DSC_0136
  • DSC_0137
  • DSC_0138
  • DSC_0139
  • DSC_0140

Vintage 1964 Vox JMI AC50 MKII Small Box Valve Amplifier


In stock


We buy your vintage instruments for cash. Get in touch to find out more.

Vintage 1964 Vox JMI AC50 MKII Small Box Valve Amplifier

Vintage 1964 Vox JMI AC50 MKII Small Box Valve Amplifier

This particular version of the AC50 was only made for a few months, and only around 42 were produced. It is the crossover between the classic diamond input, copper panel, to the big box AC50. The cap codes, serial number and model all date this to late summer – early fall of 1964.

Serial Number: 1506

Valve Brands: Electro-Harmonix

Voltage Selector: Hardwired for UK Voltage

This amplifier has been serviced to a playable & safe standard, by one of our leading amp techs. To find out more about what our service includes, please check out our terms and conditions before purchasing.


Overall good condition, with various scuffs to the tolex & scratching to the serial number plate. There have been two extra jack sockets drilled to the back of the amplifier, and the original hole has been left open, as you can see. The original power cable has been changed for a newer IEC. The voltage selector has also been removed, meaning this is currently wired for UK voltage only. Please have a close look at the high resolution photographs below, as these form part of our description.


This has previously had a transformer burnt out, leaking wax on the wooden box internally. Therefore, we are certain the choke and one of the transformers (now labelled D8869) have been replaced. However, the previous owner used the original cover to disguise the fact. There have also been minor service components changed i.e. caps, resistors, etc.

At The Music Locker we will do all we can for you to get the instrument you want. You’re more than welcome to come and have a play on this, coupled with one of our vintage guitars!

Additional Information

Country of Manufacture






In Stock



For more information on shipping prices, please visit our shipping page.

The Music Locker prides itself on offering vintage and collectable pre-owned instruments and equipment (the Products).

We take all reasonable steps to ensure the equipment has been inspected by a competent person in the UK to ensure it complies with UK safety standards. This may mean it does not comply with the current standards in the country in which it will be subsequently used. It is the purchasers’ responsibility to ensure it is inspected by a competent person knowledgeable with the relevant electrical safety standards within that country, prior to connecting to any live electrical circuit.

It is the philosophy of The Music Locker to keep all items as original as possible, only changing original components when absolutely necessary. This includes valves, capacitors, transformers, potentiometers, frets, etc. This gives the buyer the option of tailoring to their exact needs, and may mean that the item is not operating at optimum performance levels. Therefore, your personal preference may differ, depending on your circumstances (i.e. collector or musician), and you may decide to service the item in more depth upon receiving.

The Music Locker cannot accept responsibility for any costs of refurbishment to a standard different to the one advertised.