We show an oscillator that produces rectangular TTL signals based on inverters. Inverters can also be designed with standard NOR or NAND gates. The circuit must be powered by 5 V.
This circuit uses opposing MOSFETs operating on a 6 to 15 V input voltage. The circuit is from...
This experimental receiver for the medium wave band uses a germanium transistor that can be...
We found this circuit in a magazine 73 for radio amateurs from the 80's. The circuit makes use of an...