This circuit is used in a LASER detection system to avoid echoes from short distances in systems up to 1 mile. The circuit is from a 1967 documentation.
Found in a 1960 General Electric documentation, this crowbar circuit blows the fuse in case of...
This circuit was originally designed for testing crystals used in color televisions, but it works...
This bridge-biased transistor test circuit measures gain in the range 0 to 300. Circuit is from...