This circuit is from American documentation from the 1980s. The transistors are general purpose types and the relay can be 6 or 12 V depending on the supply voltage.
January 21, 2016 - Mouser Electronics, Inc. is now shipping the highly anticipated Arduino 101from ...
Based on a Linear Technology integrated circuit not currently easy to obtain this circuit converts the d...
This VCO or Voltage Controlled Oscillator was found in a Popular Electronics from 1991 but can be...