KPTree Wiki https://wiki.kptree.net/ 2026-09-24T05:56:48+00:00 KPTree Wiki https://wiki.kptree.net/ https://wiki.kptree.net/_media/wiki:dokuwiki.svg text/html 2025-12-30T03:30:53+00:00 Anonymous (anonymous@undisclosed.example.com) Electronics Info/Data https://wiki.kptree.net/project:leds?rev=1767065453&do=diff diode led Electronics Info/Data LEDS and Diode notes Some rough notes concerning LEDs and diodes. References * Basic Light Emitting Diode guide * Guide to LED Circuit Designs and LED Basics & Operation Resistor ColourRing 1Ring 2Ring3Ring 4 Figure 1Figure 2MultiplierToleranceBlack001Brown11101%Red221002%Orange331,000Yellow4410,000Green text/html 2024-08-24T08:27:38+00:00 Anonymous (anonymous@undisclosed.example.com) Sprinkler Solenoid 24VAC Woes https://wiki.kptree.net/project:sprinklers?rev=1724488058&do=diff sprinkler inductor controller solenoid valve solenoid_valve Sprinkler Solenoid 24VAC Woes See my Home Sprinkler notes I have had many problems with my sprinkler system; decrepit failing 30 year old underground wiring, failing solenoid valves and their solenoids. Some of the old solenoid valves were replaced as they had mechanically failed. The multiple issues made it vary difficult to diagnose what was happening at any time.