Aclam Dr Robert Overdrive Pedal

The Beatles in a Box

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stock availability
0 at our Guildford Store
0 at our off-site Warehouse
Want to Click and Collect or try items at our Guildford Store?

The store is open 10am - 6pm Monday to Saturday and 11am - 5pm Sunday and bank holidays.

The stock information shows the quantity of units that are available to purchase at the Guildford store and the quantity of units that are available at our off-site Guildford warehouse. These stock levels are updated in real time.

Our Click and Collect service is available at our Guildford store from 10am - 6pm Monday to Saturday, and 11am - 5pm on Sunday. You can either choose click and collect as your delivery option online or, during store opening hours, call our sales team at 01483 456777 to place a 10% deposit.

If you have placed your order online, you will receive a confirmation email of your order and a separate follow-up text or email to confirm when your item is ready for collection.

Please do not come to the store before you have received the follow-up message, as your order may not yet be ready at the store.

If the only available stock is in our off-site warehouse it can be brought to the store location for you to try - you just need to contact the store within opening hours. Please note any requests received after 3.30pm will not arrive at the store until the following morning.

Please be aware that, unless you have paid a deposit to reserve the item, it will continue to be free, both online and in-store, for another customer to buy. Therefore we would advise you to place a 10% deposit by either using the on-line click and collect service or calling us 01483 456777.

SKU: AP0020

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Product Description

The Beatles fans, come together. Aclam have modelled the Dr. Robert overdrive on the rare Vox UL730 solid-state preamp, used extensively by The Beatles as well as other monumental names like Led Zeppelin and the Rolling Stones. 

You'd be right in thinking the artwork looks familiar - Klaus Voorman is the man responsible, who designed the cover for their iconic Revolver album. You still can't escape Beatlemania in the 21st century.


Based on the Vox's Normal channel, the Dr. Robert is an uncanny replica of the original used extensively on both Revolver and Sgt. Pepper's Lonely Hearts Club Band. It was the not-so-secret key to their guitar tone.

Only a small number of original UL730 amps have survived to this present day, so you'll be getting your hands on an extremely exclusive tone. The Dr. Robert captures the essence of one of the first hybrid amps ever created. It sounds great either through guitar or bass and performs admirably cancelling out low-end drops.


Controls include your standard volume, gain and middle, with the latter important for shaping the classic scooped British tone when rolled off and adding unprecedented saturation turned up high.

Aclam have added their own "Mach Schau!" custom FET circuit to the mix just for good measure. This mimics the feel of the tube power amp section, saturating things even further and making for a great lead tone. Adjust using the independent volume control.


As with all Aclam pedals, the Dr. Robert features a custom enclosure with side thumb screws to fasten the pedal to Aclam pedalboards and select boards from other brands.

Switching sounds tight and clean thanks to supreme Alpha pots & switches and the finest Wima caps. 


  • Dimensions: 13,6 x 8,7 x 5,5cm (5,4” x 3,4” x 2,2”) with knobs
  • Bypass: True bypass
  • Current Draw: minimum 40mA
  • Power requeriments: 9V DC Center Negative 100mA minimum or a a 9V battery
  • Included: 1 x Anti-sliding rubber pad & 1 x Velcro® pad