[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.

Description: PRECISION TYPE 5.5 INCH W X 4.5 INCH D X 7.25 INCH H SIZE TELECOMMUNICATION INDUSTRY APPLICATION HIGH IMPACT ABS PLASTIC HOUSING MATERIAL (1) 6 V LANTERN BATTERY VOLTAGE 577.5 HZ TONE ...