This circuit was found in a 70s American documentation. The operational amplifier supports a modern equivalent. The characteristics are given next to the diagram.
We found this oscillator in a 1979 amateur radio documentation. The circuit can use transistors like the...
August 2017 - Rectron's Schottky Barrier Diodes can now be obtained from Mouser Electronics. The...
We found this circuit in a 1969 General Electric documentation. The circuit uses transistors of the...