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I've repaired and modified many different tremolo units over the last 25 years, from DIY kits to
those installed in tube amplifiers such as the Fender Blackface Twin and Tremolux.
The tweed-covered Tremolux was introduced by Fender back in 1955 and first tremolo-equipped amp. There's no doubt in my
mind that these classic American tube amp circuits reproduce a beautiful, deep and warm tremolo, that still remains unsurpassed
by the current offerings of transistor and opamp based effects.
I wanted to recreate the buttery pulse of this classic amp trem and eliminate some of the shortcomings as well.
Firstly, the LFO (low frequency oscillator) in these old amp tremolos are notorious for generating an annoying
audible "ticking" noise. Also the LFO is based on a primitive phase-shift oscillator configuration which
looses gain at lower modulation rates, resulting in a weaker intensity of effect.
In addition to engineering out these problems, I wanted to add
some flexibility on the shape of the modulation waveform. The Delta-Trem features a
"Shape" knob which allows continuous control of the LFO
an produce hypnotic, pulsing mono tremolo through a single amp or ping-ponged from one amp to another in stereo mode for a huge, spacious tone.
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Tube technology delivers staggeringly huge tone and unparalleled flexibility too.
In less time than it takes to tune a guitar, Effectrode effects can be
easily customized to meet your specific musical requirements by simply changing a tube.
For example, simple swap the stock JJ 12AX7 in the Tube-Vibe gain/mixer section for a 12AT7 for increased headroom and lower gain or
or try a NOS JAN Philips 12AX7, Mullard ECC83 for a smoother response. JAN Philips Mil-Spec 12AT7 in the phase-shift sections for
high reliablity - you decide. 