2 layers224 × 78 mm

VFD Clock
AronASzucs/IV-11-VFD-Clock
6-digit Soviet IV-11 VFD tube clock — custom PCB, mixed 25V/1.5V power system, 7-state FSM firmware
41 parts43
Open-source boards designed in KiCad by AronASzucs on GitHub, from 2 repositories. A board’s address here is its repository’s there.

AronASzucs/IV-11-VFD-Clock
6-digit Soviet IV-11 VFD tube clock — custom PCB, mixed 25V/1.5V power system, 7-state FSM firmware

AronASzucs/Avalanche32
Handheld ESP32-S3 Geiger counter with a firmware-regulated 400 V boost, SBM-20 tube, USB-C charging and OLED display.