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Discussion Starter #1
Does anyone have a printable schematic for the alternately
flashing ckt. for railroad crossings
Thank you,
Regards, tr1
 

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this kit doesn't use the 555, just a couple of transistors instead, but it's very close to actual flash rate, and the kit is less than a buck for all parts, including the pcb and shipping ..


DSCF1857.JPG
 

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wvgca, what is the source?

Thanks, swede

"this kit doesn't use the 555, just a couple of transistors instead, but it's very close to actual flash rate, and the kit is less than a buck for all parts, including the pcb and shipping"
 

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note that the above circuits do not include occupancy detectors / sensors, if that is what you had in mind ..
 

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Thank you for the responses, wvgca and Bob.

Wvgca, I did not have occupancy detection in mind. I was interested because of your reference to cost. Very inexpensive.

The crossings on my layout already have flashing units built using the same diagram as you posted, Bob. They have served me well.

swede
 
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