Using an integrated effects circuit, this circuit produces gunshot sound. The circuit must be powered by 5 V and the signal applied to a good audio amplifier.
Found in Radio Electronics, this filter is suitable for attenuating up to 40 dB for AM radio...
This TTL module can be used in counter and many of them can be cascaded to counts up to 99, 999,...
This circuit was found in the Texas Instruments 1996 linear applications manual. It consists of a...