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 circuit can control the power from 0 to 70% of the maximum power on a load. The circuit was...
We found this circuit in a publication by General Electric in the 1980s. The transistors and the...
This circuit generates signals controlled by crystal and can generate marks up to 30 MHz of 1 in 1...