This stereo circuit is from Japanese 1960 documentation. The circuit was originally designed to work with a tube amplifier, removing power from it. The transistors are germanium.
This circuit was found in an old Poptronics but is still current as transistors can be replaced...
This circuit generates a multiple Inal with 3 outputs and whose frequency depends on the values of the...
We found this circuit in a documentation on active filters from 1977. The gain of this circuit is...