Simple FM Transmitter – Short range
This is a simple one transistor short range FM transmitter. It runs on 3 volts and the circuit is based on one that saw here on Youtube. The circuit was put together with parts…
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Short range FM transmitter—Cool Joule style
This is a short range radio transmitter that broadcasts to an empty station on the FM band. The circuit is a modified ‘Cool Joule’ by TinMan. It is very simple but the parts values…
Experimenting with Tesla Transmitter
Some video of me playing with a Tesla coil transmitter. Tiger joins the fun at the end.
Cool Joule Transmitter–Scope shots
This shows what the output signal of my ‘Cool Joule Transmitter’ looks like on a computer based oscilloscope. The o-scope probe is not directly connected to the circuit. A small coil of wire (sniffer…
Cool Joule Transmitter–using house ground wire to transmit
This is my ‘Cool Joule Transmitter’ using the house ground wire to transmit a wireless audio signal to different locations inside the house.
Cool Joule Radio Transmitter–hooked up to a laptop computer
This is a super simple wireless device that can broadcast the headphone output signal from a laptop computer to a nearby AM radio. I call it the ‘Cool Joule Radio Transmitter’. The circuit is…
Cool Joule Radio Transmitter
This is a super simple short range AM radio transmitter that uses only 3 parts. It is made using a modified ‘Cool Joule’ led light circuit that was first presented here by TinMan.
Joule Thief: Variant with 2n3055 Flashes CFL
Dimly it flashes, less than 1.2 v input . Same circuit as before but with NE-2 removed and CFL wired in place. 13 watt 120 v unmodified CFL.
TMT Tesla Magnifying Transmitter: part 2 Receiving Coil
schematic: http://imageshack.us/f/248/imagefbe.jpg/ using the schematic that Eric Dollard has shown, works like a charm. Transmitting thru the ground to the receiving coil, even though there is only a few volts from the signal generator,…
uA Hartley transmitter circuit – Puddle Walker
See description: This type of oscillator has got to be one of the least power hungry on the planet. Lidmotor showed us his version, from a circuit found at Overunity.com. His circuit drew just…