With this simple circuit it is possible to simulate a telephone line for carrying out repairs on telephone sets. The transformer must be 36 V and the diode can also be 1N4004.
The Texas Instruments TPA3100D2 integrated circuit (www.ti.com) consists of an efficient class D...
This selective filter can be used with the previous receiver (CB19446E) in a simple remote-control system....
This configuration, explored several times on this website, shows how to use a 3-terminal voltage...