This TTL circuit found in the September 1996 issue of Electronics Now magazine doubles the frequency of a rectangular signal. The power supply must be 5 V.
This simple SCR trigger was found in a 1965 General Electric SCR manual. The circuit makes use of a...
Using an old integrated circuit, this low power amplifier, on the order of a few watts, includes tone...
This circuit with only one transistor was found in Japanese documentation from the 1960s. The...