Riffers (UK) are pleased to offer for sale this 1971 Marshall JMP 1959T Super Tremolo head. This gorgeous sounding amp has been fully restored and is in near-mint condition. It has recently been re-housed in a new case from Zilla Cabs, period-correct for this model.

The transformers, circuit board, and components are original, as is the chassis. It retains the original Bulgin mains connector, and the Bulgin power cable is included. This is a true hand-wired Marshall on a turret board, a feature phased out in favor of printed circuit boards in mid-1973. Photos of the insides are available upon request.

A new set of Marshall EL34 tubes have been installed. It has been fully recapped, with the five 50/50 radial cans, bias supply capacitors, and tremolo circuit caps replaced. The original germanium transistor has been retained, allowing the tremolo to function with a modern foot switch. The amp was further serviced by RetroAmps on 20/06/24. Some of the original parts (pots, resistors, caps) have been retained and are included in the sale for posterity.


This amplifier is unique due to the absence of a stamped serial number. The Super Tremolo model didn't gain much popularity, leading to limited production runs where serial numbers were only added upon order. Rose Morris, the distributor, likely received these amps without their serial numbers stamped.

It's well known that a Marshall JMP 1959T 100 Watt Super Tremolo, modified by Tim Caswell and referred to as S.I.R. Stock #39, gave Slash his iconic tone on "Sweet Child O’ Mine”.

Postage / Shipping / Import duty / Collection:

• Postage within the UK is always included in the purchase price (unless otherwise stated in the ad)
• We offer international shipping options for our customers and it is calculated automatically at checkout.
• To ensure the safe delivery of your purchase, our gear is meticulously packed with acid-free paper, bubble wrap, parcelling chips, and sturdy double-walled boxes, protecting it from the shocks and knocks that shipments may encounter.
• If desired, we can ship your purchase fully insured against damage and loss (please enquire for a quote).
• Any additional charges, such as import duties, that may apply to your shipping address are the sole responsibility of the buyer.
• For local buyers, we warmly welcome and encourage pickup, especially for high-end and fragile items.
• If you suspect that the postage cost calculated at checkout is inaccurate, feel free to request a shipping quote for clarification, as shipping quotes may vary.

Returns Policy:

Your satisfaction is important to us. If you are not completely satisfied with your purchase, you have the option to return it to us within 14 days for a refund. Please note the following terms:

• Original Postage Deduction: The original postage cost will be deducted from the refund amount (this also applies to UK customers).
• Restocking Fee: A 5% restocking fee will be applied to the refund.
• Return Expenses: Any expenses related to return postage and customs duty are not covered and remain the responsibility of the buyer.

If you have any questions or need assistance with a return, please feel free to contact us.

Reserving Items:

To accommodate your needs, we gladly offer item reservations for a period of 30 days. To secure the reservation, a non-refundable deposit of 10% of the sale price is required. This deposit ensures that the item will be held exclusively for you during the reservation period. Should you decide to proceed with the purchase, the deposit will be applied towards the total amount. Please feel free to contact us for any inquiries or to arrange an item reservation.

Part-Exchanges and Trades:

We are open to considering part-exchange for high-end gear. However, it's important to note that as a business, we aim to turn a profit, and therefore, the value offered for part-exchange may not match what you could potentially receive by selling your gear privately. Nonetheless, part-exchange can often provide opportunities that budget-conscious buyers might not otherwise have. If you are interested in exploring part-exchange options, please don't hesitate to contact us for further details.

Gear Buy-Back:

We have a heartfelt attachment to the items we purchase and parting with any piece from our collection can be difficult. However, should you choose to sell any gear that was originally purchased from us at a later date, we will always be willing to consider buying it back (within reasonable terms). Feel free to reach out to us if you're interested in exploring the buy-back option or have any questions about the process.

More information / photos:

Can be found on our website.