[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 ...
Built in functions include: brown note tone generator, dog whistle, EMF meter, flashlight, IR universal remote, laser pointer, ohm meter, sound level meter, voltage detector, and a voltage meter.
It is a Walter Jones & Co. 17Hz ringing tone generator, an example of the emerging ingenuity applied to the early communication systems. It was part of a manually operated telephone exchange.
Some results have been hidden because they may be inaccessible to you
Show inaccessible results