Found in a 90s R-E Experimenters Handbook, this circuit amplifies signals from 100 Hz to 3 MHz. The circuit has a gain of approximately 30 dB. Bipolar transistors are general-purpose types.
This steady hand or nerve-rest or steady hand as called in the original English publication uses a...
When the sensor X1 is opened, the relay is energized. When waiting, the current drained is very...
This circuit is suggested by Motorola in its 1990 Linear Databook. The integrated circuit is no...