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LEDs
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03-11-2019, 06:16 PM
I remember using bi-directional LEDs in the early 1980s on a vision mixer control panel.. Red plus green. We drove them from a Z80 based system. Slung between a pair of logic gates, we could get red and green by changing the drive. We may have tried to get yellow by reversing the drive rapidly but not sure that this worked very well.
www.borinsky.co.uk Jeffrey Borinsky www.becg.tv
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| Messages In This Thread |
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LEDs - by Alistair D - 01-11-2019, 10:59 PM
RE: LEDs - by ppppenguin - 02-11-2019, 07:45 AM
RE: LEDs - by Alistair D - 02-11-2019, 10:54 AM
RE: LEDs - by Alistair D - 02-11-2019, 03:41 PM
RE: LEDs - by Ed_Dinning - 02-11-2019, 04:47 PM
RE: LEDs - by Mike Watterson - 02-11-2019, 04:57 PM
RE: LEDs - by ppppenguin - 03-11-2019, 06:16 PM
RE: LEDs - by Mike Watterson - 03-11-2019, 11:06 PM
RE: LEDs - by ppppenguin - 04-11-2019, 07:26 AM
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