I have earlier written about 555 timer design contest. The contest is over and winning circuits have been found. Here is one very interesting contest entry (got second place in Minimalist category): AM radio receiver built around 555 timer IC.
Look at the following video that presents the circuit.
9 Comments
Tara Haney says:
1. Have a glass of water handy. When your throat is lubricated it’s easier
to talk. Plus the water serves as a “cough button” if needed.
kaan says:
Plus the water serves as a “cough button” if needed.
Tomi Engdahl says:
27 MHz transmitter/receiver pair made with 555 timers
http://hackaday.com/2012/10/18/27-mhz-transmitterreceiver-pair-made-with-555-timers/
package opener says:
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CAN says:
Plus the water serves as a “cough button” if needed.
Tomi Engdahl says:
555 based AM radio transmitter
http://hackaday.com/2011/01/10/555-based-am-radio-transmitter/
Bust out that 555 timer and use it to build your own AM radio transmitter.
Tomi Engdahl says:
Easy AM Transmitter!
by jensenr30
http://www.instructables.com/id/Easy-AM-Transmitter/
Tomi Engdahl says:
MW transmitter using NE555 timer chip
https://www.stdiscovery.gq/2020/05/mw-transmitter-using-ne555-timer-chip.html
Tomi Engdahl says:
Make MW transmitter
Using NE555
https://www.stdiscovery.gq/2020/05/make-mw-transmitter-using-ne555.html
Using comments NE555 timer chip 330 ohms, 1K ohms resistance 0.001uF capacitor
Condenser mic and 9V DC power supply.
https://www.youtube.com/watch?v=huJ0cbxqB4M