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.
In fact, what this circuit does is work the two channels of a stereo system producing two...
July 2017 - Mouser Electronics already has Ricoh's new RP118x ultra-low current regulators in...
We found this circuit in 2005 Linear Technology documentation. MPOSFET is load-matched. The...