This 13.6 V power supply with 8 A output was suggested by Texas Instruments in the documentation of the 90s. Power transistors must be equipped with good heat sinks.
This simple metronome, from 1985 documentation uses only transistors and has two settings. For...
This circuit is from a1970 documentation. R1 may have 10k and P1 47k. The transistors can be BC558...
This circuit consists of a variation of the previous one being activated when the switch is...