This step of two transistors has a high input impedance due to the use of FET. We can use BF245 for this function and the bipolar can be BC548. The circuit is from an 1975 American documentation.
ts component datasheet which can supply currents of 1 A (1.125 V and 400 mA (1.2 V). The inputs can...
We found this circuit in a 1982 publication. This transmitter sends its signal to any AM radio...
This simple circuit was suggested by the Electronics Handbook Volume XIII 1993. LED D1 emits light for...