We found this tube receiver in a 1950s Japanese publication. The circuit uses 5 tubes and has an RF amplifier stage for greater sensitivity. The power supply is not shown on the circuit.
This circuit uses an optical door opening sensor sensing the action of ceiling light or another...
STMicroelectronics MP23AB02B MEMS Audio Sensor is a compact, low-power microphone built with a...
April 18, 2016 - Mouser Electronics, Inc., the global authorized distributor with the newest...