"Commodore:, "ZX Spectrum", "Atari", "Amiga", "retro komputery", "cartridge", "kartridż", "emulator Pi1541", "Procesor Zilog Z80", "pamięć 4116", "pamięć 4164", "pamięć 41464", "tapecart", "tapuino", "TZXDuino"
PCB board for so-called crystal testers and frequency meter
Project:https://www.pcbway.com/project/shareproject/XTALL_TESTER_AND_FREQUENCY_METER.html