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

DESCRIPTION

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.

Product Details

Installation requires 4 wires, power ground input and output.

Required supply voltage: between 150V-350V dc

Detailed instructions are available in the installation PDF manual

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.

Reviews

Name: Rick Williamson
Rating: 5

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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

Name: David Price
Rating: 5

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First, I want to commend you on your excellent service ! I ordered on Thursday and received the Effects Loop on Saterday, and the custom face plate on Monday.The short turn around time was unexpected but much appreciated ! It was installed in the AO-28 pre-amplifier of my Hammond A100 organ. Because of its small size, I was able mount the device inside the chassis. Trim pots were necessary because of the hot signal in the AO-28 preamp. I used two conducter shielded mic cable for the in/out. Red for return, and white for send. Black hookup wire was used for "ground", and Red for "B+". For the Send Pot, I used Black "Ground", Blue "Wiper", Yellow "Send". For the Return Pot, I used Black "Ground", Blue "Wiper", Green "Return". Also, I twisted the 3 wires for each trim pot to avoid "Hum" problems. Because of its inline design, I am able to keep all of the organ features. Thanks for a great product, AND great service. :-) Dave