The Trill Tremolo

The Trill's speed knob provides a wide range from a very slow to rapid fire effect. The depth knob varies the ratio between effected and dry signal. Using modern, low noise transistors makes operation of The Trill quiet with no signal drop when engaged. The Trill uses true bypass foot switching so it is out of the signal path when not engaged.

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Questions and Answers
Click each question to see its answers. Looking for general answers about Mod Kits? See our frequently asked questions.
Is tremolo the same as echo/reverb? DO you ship to Canada? What is the cost of the Trill?
Answers (1)
MichaelT
Staff Member
July 30th, 2018
Tremelo is a volume effect. Our retailer Amplified Parts will ship to Canada and the kit can be purchased here: https://www.amplifiedparts.com/products/K-960
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Can the trill be used with an external AC power supply? Can it be used in line with a GR 55 Guitar Synthesizer?
Answers (1)
MichaelT
Staff Member
July 30th, 2018
The Trill can be modified to use a DC power supply. It can be used with any instrument level signal.
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Is there anyway to modify the circuit so the LED pulses with the tremolo effect?
Answers (2)
MichaelT
Staff Member
August 27th, 2018
It's definitely possible. You would likely need to create a driver for the LED that taps off of the LFO for it to work correctly.
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Anonymous
November 16th, 2018
I’ve seen a mod that pulled the positive side of the led from the sweep of the speed pot
The volume envelope sounds very "chopped" to me. Like a pulsating square wave rather than a smooth sine wave. More like a Uni-Vibe than amplifier tremolo. I like it! Was this more severe "pulsating" sound your goal when designing the pedal?
Answers (1)
MichaelT
Staff Member
May 30th, 2019
Thanks! The oscillator is a bit different than a univibe but both have a two transistor design which might have similar sinusoidal characteristics. We mostly used our ears when tweaking the final designs on this part of the circuit.
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