This 80's documentation circuit includes an amplifier of the era. Used integrated circuits are uncommon today but can be used equivalents.
This circuit, which generates a linear sawtooth signal, can be used in a frequency-band...
May 2017 - Texas Instruments' new OPAx388 operational amplifiers can now be purchased from Mouser...
This circuit was found in the September 1974 issue of Radio Electronics magazine. The circuit uses...