how to make a radio controlled relay ? - Electronic Circuits Projects Diagrams Free

truenoteno · 30th June 2003, 03:21 AM

i have tried contructing the Simple RC circuit on tony van roon's Electronics page
http://www.uoguelph.ca/~antoon/circ/src.htm

it's appears to simple to be true.
i have tried activating the SCR from audio signal from my computer, but no luck from radio waves.

Anyone have a schematic for this
should i go to the local toy store a rip apart a radio controlled car ?

Sebi · 30th June 2003, 05:43 AM

The cicuit is very primitive, i not recommend for garage-door opening....
It works when sense enough RF energy on tank-circuit frequency.I think this is a demo-circuit,when not work for You, the SCR haven't enough gate-sensitivity. (wrong type) The useful R/C RX-TX pair have coded modulation...

lavenatti · 30th June 2003, 12:15 PM

I could never get it to work either.

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30th June 2003, 03:21 AM	(permalink)
truenoteno	how to make a radio controlled relay ? i have tried contructing the Simple RC circuit on tony van roon's Electronics page http://www.uoguelph.ca/~antoon/circ/src.htm it's appears to simple to be true. i have tried activating the SCR from audio signal from my computer, but no luck from radio waves. Anyone have a schematic for this should i go to the local toy store a rip apart a radio controlled car ?

30th June 2003, 05:43 AM	(permalink)
Sebi	The cicuit is very primitive, i not recommend for garage-door opening.... It works when sense enough RF energy on tank-circuit frequency.I think this is a demo-circuit,when not work for You, the SCR haven't enough gate-sensitivity. (wrong type) The useful R/C RX-TX pair have coded modulation...

30th June 2003, 12:15 PM	(permalink)
lavenatti	I could never get it to work either.