This circuit was found in a 1967 Delco Radio documentation. The circuit has an input voltage of 250 V and the load current is 2 A. The transistors used are from that time.
This circuit was obtained in a technical publication from the 1970s. It fires a diac and thus a...
This circuit has a very high input resistance to excite a 0-1 mA indicator instrument. The FET...
With this circuit it is possible to use a common hair dryer as a hand dryer. The circuit is timed...