We found this test circuit in the November 1999 issue of Electronics Now magazine. The circuit is to be connected in series with a load rated for the diac current.
This is a possible setting for a Colpitts oscillator operating in the audio track. The shunt coil...
The output transistors of this circuit can be TIP31 and TIP32. The other transistors admit...
Found in a magazine 73 for radio amateurs, in a 90's edition, this circuit uses a general-purpose FET...