This transformerless 16-ohm speaker circuit was found in a Radio Electronics from October 1963. The circuit is powered by 12 V and the gain is 50 dB.
We found this circuit in a technical documentation from Texas Instruments. The generated signal is...
Schmitt Triggers convert a signal of any waveshape in square signals or pulses. The circuit shown...
This circuit is based on an MC1408, an integrated circuit that is not common today. The...