On the 44mm x 19mm x 30mm black “epoxied" component ... it is stamped “4.0 plus sign 10% minus sign 5% 350 VAC”. Below is a picture showing the very limited stamped info. I tried to inquiry via email TSC group but it bounces back. The device was put within a bunch of our T12 eight foot double bulb fluorescent fixtures back in 1985 with the promise of energy savings. In hindsight I would have verified if the component actually saved energy via a clamp on multimeter but I assumed that the now gone seller-installer at the time was telling us the truth. Anybody on the forum care to venture how the component saves energy & since the component outwardly appears to be in good shape ... is there a possibility of reusing the device (that was wired in series with one of the tombstone ends) with the voltage for something else? They look perfectly good so I am not crazy about just throwing them out in the trash. I do have a Fluke 325 & 771 that I could possibly use to test what goes on ... if I understood electronic circuits enough.
Since we now replaced the fixtures with LED fixtures & since I have been doing some research on dimmers & their accompanying energy savings ... I am thinking the epoxied in device could be used as a energy saving dimmer or some other place in some kind of an electronic project. It could be somewhat obsolete for all purposes ... but that is why I am hoping some of you have some understanding how a device like that could have functioned to actually save energy.
On the picture & in for real ... it appears to be some type of diode or resistor across the only two terminal leads that like I said was wired in series with one of the four single pin fluorescent tombstone ends. Thanks in advance.
Since we now replaced the fixtures with LED fixtures & since I have been doing some research on dimmers & their accompanying energy savings ... I am thinking the epoxied in device could be used as a energy saving dimmer or some other place in some kind of an electronic project. It could be somewhat obsolete for all purposes ... but that is why I am hoping some of you have some understanding how a device like that could have functioned to actually save energy.
On the picture & in for real ... it appears to be some type of diode or resistor across the only two terminal leads that like I said was wired in series with one of the four single pin fluorescent tombstone ends. Thanks in advance.