This simple SCR trigger was found in a 1965 General Electric SCR manual. The circuit makes use of a diac, and the transistor supports an equivalent.
This is a 6-transistor transistor receiver manufactured in the 60s. The circuit is a...
This circuit is from a 2005 Linear Technology publication. It converts current into load sensing...
The circuit in the figure is an amplifier with gain 10 for alternating signals using the 741. The...