This sequential tone generator circuit was found in the July 1980 issue of Radio Electronics magazine. It uses well-known integrated circuits. The tones are generated by programming resistors.
This divider by 8 is synchronized because it is implemented based on TTL or CMOS logic according to the...
This circuit is more sensitive than the previous one, in the sense that we can use weaker and more...
Suggested to power the previous circuit, this power supply was found in the December 1990 issue of...