This programmable sound circuit was found in the July 1978 issue of Radio Electronics magazine. It uses an integrated circuit of the time dedicated to producing effects.
This low power metronome produces pulses in a small loudspeaker. Pule rate is adjusted by P1 and...
The Texas Instruments TPS7A92 integrated circuit consists of a low-voltage (LDO) linear voltage...
In the figure we show the typical configuration of a shared line using a twisted pair where the...