Ultra 1 Electrical Whistling
Posted 20 October 2013 - 07:12 AM
Should I be concerned about the high-pitched whistling coming from the bottom of my Ultra 1 sled? What's the usual culprit?
I'm running 24V from the original ultra batteries..
Thanks as always for your advice.
Posted 28 October 2013 - 07:38 PM
Are you sure it's not from the monitor? My Tiffen CRT would screech for a few minutes when it was cold. Quiet when warmed up.
Try turning off the monitor and see if the noise goes away.
Posted 28 October 2013 - 10:45 PM
Also try blowing dust off the tube, sometimes it's the dust "singing" - open up case AFTER removing batteries and turning monitor switch to "on" to drain off any excess voltage