With an output of 7.5 W at 110 V this circuit was found in a 1968 Motorola documentation. The circuit has an operating range of 95 to 2 000 Hz.
This circuit found in a 1974 English magazine was originally designed to automatically trigger a slide...
A staircase signal is produced by this circuit using a TTL IC and an operational amplifier. The...
This circuit is from an American publication from the 50's. The transistors are made of germanium and...