Harmonic Tremolo

This began as a custom order —> the client wanted an all-tube harmonic tremolo (described below*) with a dedicated volume and tone control so it could be used as a boost/pre-amp. They also wanted a wet/mixed & dry output arrangement WITH a polarity/phase switch on the dry output for sTeReO aDaPtAbIlItY. After a lot of researching and tweaking the (aptly, not creatively named) HARMONIC TREMOLO was born!

From afar, it’s a one.trick.pony. BUT in a world of DI recording and amp simulators, it’s the bedroom-engineer/guitarist’s pal. Use it as a preamp, straight ahead harmonic trem, OR use the stereo outputs for lush lush lush spatial effects.

*harmonic tremolo: like most tremolo designs, there is an LFO (low-frequency oscillator) behind the magic, but the harmonic tremolo utilizes two outputs from the LFO that are 180 degrees apart (making it unique). Your instrument signal is split into a high-pass filter and low-pass filter —> the outputs of which are modulated by one output of the LFO described above. THEN, your two filtered, separately-modulated signals are combined!

HOW TO ORDER? Send me an email (info@RootbeerAudio.com). A 50% deposit (PayPal or Venmo) is required to start the build. Once the amp is done, the other 50% (plus shipping) is due. You can also check to see what's available on REVERB or at Dipinto Guitars.