From an input signal, and using an unusual current source, this circuit generates a ramp, that is, a voltage that grows linearly up to a certain value, and then falls.
This simple circuit is intended to test integrated circuits 555 and 741 in 8-pin DIL enclosures. In both...
This circuit is the receiver for the CB13997E. The transistor can be the BC548. We also found this...
This circuit was obtained in a technical documentation from the 70s, but it can be assembled with...