Hammonator 2RVT Organ to Guitar Amp Conversion

Published:2013/3/10 21:46:00 Author:Ecco | Keyword: Hammonator, Organ , Guitar, Amp Conversion | From:SeekIC

This project is a feature-added version of the Hammonator 1 Hammond organ to guitar amplifier conversion project. The Hammonator 1 circuit worked as a basic guitar amplifier, this version adds some very nice sounding vacuum tube audio effects. The 2RVT model number means: 2nd Generation, Reverb, Vibrato and Tremolo. Two copies of the Hammonator 2RVT amp have been made (see photos), both have been working nicely for years. The design has stood the test of time. The reverb uses a classic sounding tube circuit with a class A triode driving an 18 reverb pan. The reverb has both dwell (input) and output level controls. A pitch-shifting vibrato / volume shifting tremolo circuit is part of the signal path. The vibrato produces a variety of interesting phase shift sounds, from slow movement to warbling. Stereo vibrato can be easily achieved by chaining a second clean cannel amp's input to the Hammonator's second input jack, or by driving the amp from the Side Channel Output connection. Stereo greatly enhances the vibrato effect, the sound appears to move around the room. A cheap guitar practice amp makes an ok secondary amp, a tube amp such as the Spartacus or the Howler Monkey will produce an even better sound. The Tremolo/vibrato switch changes the pitch shifting vibrato effect into a volume shifting tremolo effect. The wide range of LFO speeds produce some interesting tremolo effects.



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