torstai 25. kesäkuuta 2020

AS3046 DIP

Alfa's AS3046 DIP format chip is a direct replacement of old LM3046/CA3046 chip. Vbe is matched to +-1mV (LM3046 only to +-5mV). Another Moog Prodigy-clone is alive and with AS3046s the VCOs track  at least 8-octaves (as much as I can get from Arturia MicroFreaks CV-out).


AS3046's are here right the 14-pin DIPs.

This is the first version of my clone with old-style switches.

sunnuntai 21. kesäkuuta 2020

Joystick MIDI-controller

Today you can buy cheap Arduino UNO R3 microcontroller copy from Velleman for just 15€. With two analog joysticks, Arduino with code, two resistors, wire, connectors and a Hofnar cigarette box you can build a simple MIDI-controller to control four parameters with two hands (MIDI CC).