The Flash Monotron is a proposed redesign of the classic single-IC monotron topology (based on the Texas Instruments SN76477 or similar analog sound chip). This paper details modifications to improve temperature stability, extend modulation routing, and integrate a flash sample memory for wavetable-like behavior. The device targets portable instrument builders and educational synth kits, offering a bridge between pure analog character and basic digital control.
The Monotron range includes several specialized versions tailored for different installation needs:
Note: This paper describes a design concept. All circuits should be prototyped on breadboard before PCB layout. Flash sample rate and resolution are minimal – higher fidelity is possible with external audio codec (e.g., WM8731) at higher cost.