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AMB's lighted switch

gamma3, gamma24 (plug-in for the γ3)

AMB's lighted switch

Postby Rabbit » April 23rd, 2018, 6:11 pm

AMB, I noticed you use a lighted switch on your γ3, but I can't find any wires that power the LED in your photos. How'd you manage that? :geek: :?:
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Re: AMB's lighted switch

Postby amb » April 23rd, 2018, 7:16 pm

It’s magic! :D

I took power from the σ22 and used a zener diode to drop the voltage to 12V for the switch illumination. The switch has an internal current limit resistor but specifies a 12V power source. This is all hidden below the γ3 backplane board. I modified the backplane board to accept a 4-circuit Molex KK header, and used the 2 extra pins for the switch illumination.

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Re: AMB's lighted switch

Postby Rabbit » April 23rd, 2018, 7:47 pm

That's awesome. Thanks for sharing your method.
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