I'm building yet one more Mini Remin. The MR is now a well tuned design. I'ts been around for a while, and several MR of different colours have hit the stage. People like the IKEA case and the see-through LED. Buffer stage tends to saturate at high volume, giving a fuzzy sound when required.
I've recently made a few minor improvements of the design.


It is the simplest design but the output is 'sound' and the performing feedback sharp and nice to play. It requires a bit of practice but eventually gives you that provoking sound and feel.

3-D rendering of the PCB



The Mini Remin
* Technical specifications:

* - 2 oscillators
* - Span: 2 and 1/2 octaves approx.
* - Output level (line): 1,8 Vpp approx.
* - Antenna: plate or telescopic whip.
* - Power: battery or dc external p.s.
* - Outputs: line, speaker (.7W RL=8 ohms)
* - Commands: Pitch, volume, on/off
* - "Zero Beat" Led indicator.