Z80 Single Board Computer
l.i.papadopol
My First Didactic 8-bit Z80-based Computer I built this computer because I’ve been interested in creating a working computer from TTL chips since my high school days. The Z80 microprocessor,…
MS-4 γ-selective Geiger counter
This is a γ-selective Geiger counter from the “M” professional serie used also in demonstration devices for measuring the age of minerals by the activity of the isotope potassium-40. It’s…
SI-16bg
This is equivalent to SBM20 Tech. spec.: ·Radiation determine: beta ( > 0.25 MeV) ; gamma soft/hard ·Voltage of start of counting: 280 – 330 V ; ·Operating voltage (recommended):…