This 1968 circuit makes use of MOSFETs of the time. The circuit can be mounted based on modern common FETs. Observe the high supply voltage.
We found this circuit in the May 1989 Radio Electronics magazine. The circuit can have its values...
The circuit shown in the figure has elements for maximum gain at maximum speed. By setting the...
This circuit is indicated for audio tests, the tracks being selected by the capacitors. The...