Obtained from an English publication in the 1980s, when a weather station operated in that country at 60 kHz, this circuit employed only two general-purpose transistors.
This circuit was found in a 1965 General Electric documentation. It is intended for reception of the...
Photoelectric cells can be used as sensitive light sensors. However, the low voltage they generate...
This circuit is suggested by Motorola and is based on a 1723 voltage regulator. The 2N3055...