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Vintage 1970s Simms Watts AP100 100 Watt Amplifier Head Amplifier


In stock


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

Vintage 1970s Simms Watts AP100 100 Watt Amplifier Head Amplifier

Vintage 1970s Simms Watts AP100 100 Watt Amplifier Head Amplifier

Built like a tank in the 70s, this amp is a true powerhouse. Extremely rare & sought after! You’ll not find a sound like this, and a build quality to this extreme, in many amplifiers! This is no exception to the rarity and build-quality.

Please note: this is pictured with the matching Simms Watts AP100 cabinet, which is not included in this listing, but is for sale on our other items. If you’re interested in the matching set up, get in contact.

Serial Number: 5348

Valve Brands: JJ

Transformers: Original

Voltage Selector: Yes – on transformer.

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 very good condition, with only slight wear and tear to the tolex. The chassis has been bent in the past, as pictured, but has been shaped back into place as best possible. It is difficult to see unless mentioned, and doesn’t affect the playing of this. Please have a close look at the high resolution photographs below, as these form part of our description.


Internally and externally original, including transformers, except for minor service component changes 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




Simms Watts


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.