Critical components of this project are the Geiger tube and the 300V battery. The battery can be replaced by a small inverter, as the circuit current is few microamps. The circuit is from an old documentation. Transistors are general purpose types.
) This variable frequency oscillator was found in an old American documentation. Transistors allow more...
June 2016 - It can be obtained from the Mouser the MIROE 2253 that converts text into voice.Trata is a...
This ttransistor test was found in a 1987 documentation. It is a simple oscillator that allows to...