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.
This circuit is from a 1980 publication. In it we have a half-wave power control in which the SCR...
We found this circuit in the 1994 Linear Applications Handbook from National Semiconductor. The...
This sound intensity meter was found in a 90s Elektor. The circuit uses an integrated device from...