https://wiki.kptree.net/ 2026-09-18T17:55:30+00:00 https://wiki.kptree.net/ https://wiki.kptree.net/_media/wiki:dokuwiki.svg text/html 2024-02-25T09:07:03+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.kptree.net/project:oscilloscope?rev=1708852023&do=diff oscilloscope Oscilloscope I recently purchase a small single channel digital oscilloscope, Zeeweii DSO154Pro. Typical for Chinese supply the instruction provided are terse. These are some additional notes. DSO154PRO Parameters (from suppliers manual): The accuracy above 15MHz may be such that use in this range is limited. text/html 2024-08-24T08:27:38+00:00 Anonymous (anonymous@undisclosed.example.com) 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.