This circuit is from a 1977 Signetics integrated circuit manual. The output transistors can be BD136 and BD237 and the symmetrical supply can be from 6 to 12 V. The voltage gain is 10.
This simple timer based on unijunction and SCR transistors is from 1995 documentation. The maximum...
This configuration with complementary transistors causes an LED to flash at a frequency that is...
An interesting application that can be implemented with the LM139 is the pulse width modulator. This is...