Found in a 1964 Electronic Design this transistor limits signal amplitude to a load. The output is limited to 0.2 V using germanium diodes.
Found in old documentation, this circuit uses components that are still common on the market. The...
This circuit activates a relay by activating one of a series of optical sensors that can be...
We found this circuit in a 1996 publication. Equivalent components can be tried, especially in the...