This Wien bridge oscillator circuit uses a Texas Instruments 709 amplifier. It was found in an article in the September 1972 issue of Radio Electronics magazine. It is powered by a 24 V voltage.
Found in a 90’s American publication, this circuit has a voltage gain close to 1, as shown in the...
Using a pair of 741 op amps, this 90 s Radio Electronics circuit works with the previous one. The...
This circuit is from a 1966 Motorola Field Effect Transistors Manual. The circuit makes use of...