This circuit is from a documentation on the MC1539 from Motorola and may, however, be implemented with equivalent operations. The transistor also supports equivalent.
Medium and high power partially burned can be used as diodes in a simple Power supply as shown in...
This circuit adds a beep to turn on with car flashers that do not have this feature. A 47 ohm to...
This transmitter generates modulated infrared radiation and can be used as the basis for a remote...