This 130 V drive uses an integrated circuit not very easy to find, which is the LM143. The circuit is suggested by National Semiconductor in its 1994 Linear Applications Handbook.
This circuit is based on the bistable configuration, but with the difference that the values of...
This Wien bridge oscillator was found in Radio Electronics from the 90s. The circuit uses the 741...
The configuration shown in the figure is one of the most traditional when it is desired to produce...