The Cherry Pie Tremolo is a clone of David Rolos Twin Peak Tap Tempo Harmonic Tremolo. It is an optical tremolo and features controls for Rate, Tone, Symmetry, Shape and Multiplicator. The rotary switch features 4 different tremolo modes:
- Black Face (regular volume modulation)
- Brown Face (modulation between bass and treble, like the Harmonic Vibrato in old Brown Face amps)
- Bass modulation only, with fix treble
- Treble modulation only, with fix bass
The TAPLFO chips was updated. For the new cip please leave X1 and C6/C7 empty. Also leave R10 and R12 empty!
The tap function enables the selection of speed per footswitch. Shape sets the waveform, the multiplicator changes the speed according to its setting. What makes a harmonic tremolo special is that the treble and bass are modulated seperately. This gives some really unique sounds.
This kit contains the pcb and all necessary parts. You can choose an enclosure, please buy knobs separately (for 6.3mm shafts).
Here is a list with the parts in the kit: Bill of materials
This is not a beginner project!
This project is by delyk PCBs, in cooperation with Musikding. If you have any problem with the content of the kits like missing or wrong parts, please contact Musikding (Klaus). For any technical problem relating to building this project, please contact Kyle at pcb.delyk.com. The eMail address: firstname.lastname@example.org
Here is the direct link to the building docs, including layout and schematic: