UAA170 LED Drive (CB21891E)

This UAA170 application circuit was taken from Siemens' own integrated circuits manual from 1976. The maximum supply voltage is 18 V.

| Clique na imagem para ampliar |

Automatic Polarity Switching Voltmeter (CB14856E)
This circuit automatically inverts the test leads connection according to the polarity of the...
SCR Flip Flop (CB15941E)
With a touch of the push button the lamp is switched on. A new touch and the lamp go out, in this...
Light cut Detector (CB4954E)
This 80's circuit uses a light-sensitive SCR or LASCR and a one-sided silicon switch SUS, uncommon...