This switched or switched regulator was suggested by Texas Instruments in one of its application manuals. The circuit converts 5 V input to 12 V output with a current up to 75 mA.
This circuit uses an optocoupler with a phototriac or optotriac to drive an external triac. The...
The circuit in figure 1 is a dynamic test for FETs. The characteristic of a FET is displayed in...
This circuit was found in a 1965 Radio Shack documentation. The transistors are from that time....