Mojotone Discrete Hi-Voltage Series Effects Loop for Vacuum Tube Amplifiers

SKU: 5352106
Weight: 0.3 lb
Sale Unit: Piece

In Stock


0** // 8-22-18 DCEP

Optimized for insertion between your preamp and phase-inverter stages, this low noise, non-clipping effects loop utilizes a discrete, high voltage buffer and a return gain stage. Includes true bypass.

Installation requires 4 wires, power ground input and output.

Required supply voltage: between 250V-400V dc

The stock setup offers a send with 10dB of cut and a return stage with 16dB of boost. The signal path can be reconfigured with panel mount pots, or trim pots (not included) or by changing component values on the board for a modified fixed installation.

The stock board has been well tested in British 45 and British 800 installations and is quiet and highly functional.

Wire is not included since you will probably want to use cloth covered wire in Fender installations and PVC coated wire in British amps. Our installations did not require the use of shielded wire.

Ratings & Reviews

4 reviews

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6/12/2021 4:28 pm

Great EFX Unit

by Key Phillips -- IronHorseAmps -

Great EFX unit. We have used in a number of our amps. Quiet, easy to install and interfaces with all kinds of pedals and rack systems. Places pedals where they belong--after the preamp.

2/17/2021 1:32 pm

Great product

by anonymous

I put this effects loop into a Vox AC-15 JMI 1961 clone which I built from scratch. I wired in a 4 pole double throw switch so there would be no interference due to the way the channels pass to the phase splitter. Basically one channel can go through the loop while the other passes straight to the phase splitter. I added 1 meg ohm pots for send and receive, very quiet, very easy install. Great product