We found this transistor circuit in a 1967 General Electric documentation. The circuit makes use of components that can still be easily found on the market, and the SCR may be a 106 type.
This circuit generates signals of various frequencies and waveforms, making it useful on the...
We found this circuit in an old publication dealing with operational amplifiers. The circuit uses...
This filter for the scratching noise common in record players was found in Radio Electronics from the...