This an old commercial receiver found in a year 1958 magazine. The circuit uses some transformer available that timer and the transistors are germanium types. The circuit is intended to receive MW stations.
This circuit uses an MW radio tuned to around 540 kHz to detect atmospheric signals, for example, from...
This circuit is intended to maintain constant current in a heating element. This element must have...
The LMV321 is a low voltage operational amplifier from ON Semiconductor. The following diagram,...