This crystal oscillator is indicated for the calibration of IF steps of common radio receivers. The transistor admits equivalent as 2N2222 or BF494. The circuit is from an old American publication.
This control for a traffic light with incandescent lamps was obtained from an English...
We found this circuit in a technical documentation on thyristors from the 70s. The circuit is set...
Mouser Electronics is making available the SLN-IOT-GPT Integrated Development Experience, a...