This circuit was found in a 1967 US documentation. The circuit applies to modern general purpose transistors. The circuit has no offset. The power supply must be symmetrical.
The circuit shown in the figure consists of a 200mA low voltage drop (LDO) regulator using the...
Depending on the value of C1, this oscillator can produce signals of up to 1 MHz. For a capacitor of 10...
This electronic Morse key was found in a Popular Electronics from the 90's. The components are common,...