Recommended by 90s a Radio Electronics, this unit uses a transformer with a 70 V x 5 A secondary, being indicated for powering amplifiers from 50 to 100 W.
This high-gain circuit uses junction FETs (JFETs) and must be powered by somewhat high voltages. The...
This circuit counts 1 per second, displaying the value in binary. The circuit is TTL and must be...
Critical components of this project are the Geiger tube and the 300V battery. The battery can be...