Reverse-Engineered! - ELKA 410CST1293

Feb 16, 2025

Reverse-Engineered! is an article series where I look at random small pieces of electronics.

What is it

The ELKA 410CST1293 has a button and two LEDs.

The input for the LEDs is high-pass filtered. Therefore, the LEDs can not be constantly on but only flash shortly.

Unfortunately, I could not find any references to this part on the internet.

Why do I have it and where did I get it from

This PCB is one of many analog synthesizers and organ parts I acquired at an auction about 15 years ago.

PCB

Top-side of the Elka 410CST1293 PCB Bottom-side of the Elka 410CST1293 PCB

Schematic

 Elka 410CST1293 Schematic