When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. So by now you've probably determined that I'm really into audio. As in, really serious about ...

[RichDecibels] wrote in to share a new device he built called the “Sinster Tone Generator”. It’s basically a bass drone synthesizer that uses two pairs of heterodyning oscillators to generate the ...

This circuit generates a two-tone effect very much alike the cuckoo song. It can be used for door-bells or other purposes thanks to a built-in audio amplifier and loudspeaker. Agreeable, very close ...

The circuit was designed similarly with door bell units as it generates an audio of bells ringing with dual tones. MC14106 – a hex Schmitt trigger constructed with MOS P-channel and N-channel ...