here's a very cool test... kung yung TV or monitor mo is CRT. (exept sa mga naka 120hz na monitor) wave your finger fast. kapag nag putol putol daliri mo. get a better monitor or go lcd. same with FL bulbs. kapag nag fli-flicker bulb mo. kadalasan hindi mo mapapansin kasi mabilis yung refresh rate at 60hz but nakakastrain nang mata.primitive na flicker checker device yung waving finger movement. hahahaha.
Just want to share... a good details reference for understanding the concept and operation of fluorescent lamps. Troubleshooting is also included.Sam's F-Lamp FAQFluorescent Lamps, Ballasts, and FixturesPrinciples of Operation, Circuits, Troubleshooting, Repair link:http://members.misty.com/don/f-lamp.htmlngayon ko lang to nalaman (perhaps i was not paying much attention).Did you know that there is a thermal protector for most of ballast below 20W? It opens due to overheating.hehehehe (honestly, ngayon ko lang to nalaman)
mga bos,bakit ang dali masunog ng ballast ngayon, wala pa 6 months sira na, tapos damay pa yung flourescent tube, biglang liliwanag tapos mamatay, tapos amoy sunog, kaya tuloy dalawa papalitan ballast at yung flourescent tube. samantalang yung mga antigong flourescent, flourscent tube lang ang papalitan, minsan starter pero ballast buhay pa hanggang ngayon.