This is the London Power style reverb loop kit, using a push-pull reverb driver and two-stage recovery amplifier. The output of the loop is high impedance and should feed into a tube grid, such as the LINE buffer. Reverb sound is cleaner than the usual SE drive, making it a better match to distorted sounds.
Use with a standard long or short delay line with 8-10 ohms input impedance and 2-4k output impedance (output DC resistance is 160-200 ohms for the tank).
Power requirements: 12V-300mA; 320V – 10mA
REV includes instructions, reverb tank, PCB, tube sockets and components. The reverb tank does not have the outer chassis, like a Fender tank, and is intended to be mounted inside a 17″ wide (or wider) amp or preamp chassis.
PCB: 7.2 x 1.5″ 184 x 38mm
Allow approx. 1″ 25mm over transformer, or more to allow seated tubes in sockets.
Kit requires assembly.
Available Kit Configurations:
Standard DIY Kit (REV-COMP) – includes instructions, PCB, tube sockets, components and reverb tank.
Components only, no reverb tank (REV-NT) – includes instructions, PCB, tube sockets and components; the reverb tank is not included.
PCB Pre-assembled, Configured for Internal Tubes (REV-INT) – with instructions.
PCB Pre-assembled, Configured for External Tubes (REV-EXT)– with instructions.
PCB Pre-assembled, Configured for Internal Tubes – NO TANK (REV-NT-INT) – with instructions.
PCB Pre-assembled, Configured for External Tubes – NO TANK (REV-NT-EXT)– with instructions.
Hard-to-find parts only (REV-HP) – includes instructions, tube sockets, custom London Power reverb drive transformer and the PCB; the other components and the reverb tank are not included.
PCB only (REV-PCB) – includes only instructions and PCB.
For more info on London Power Preamp Kits, see our Preamp Kits page.
Need a chassis for your preamp project? See our Rack-Mount Chassis page, or browse under Building Supplies.