With the indicated components, this circuit oscillates at 1232 Hz. Consider the tolerance of the components. The circuit is from a 1974 Ferranti transistor manual.
We found this circuit in an American documentation of the 80's, being indicated for the test of...
This amplifier for instrumentation with differential input is from the factory manual of the...
This circuit is from old technical documentation, used to monitor the voltage of a 12 V battery. The...