This power stage with two transistors was found in Radio Electronics magazine from October 1963. The transistors must be equipped with heatsinks and the supply voltage is 12 V.
Found in a PE Hobbyst in 1991, this 13.6 V power supply with a 2 A current is suitable for supply...
This signal injector and tracer (follower) was found in an old American documentation. The...
The Variable Frequency Oscillator (VFO) shown in the figure can generate signals in a frequency...