GE Biax T 2-Pin Electronic Starter 26w PL-T Lamp - Starter (2/2)

Here you see the other side of the starter PCB within a electronic start GE Biax 26w PL-T lamp. Interestingly it has GE branding on it so is probably a custom designed PCB.

This is not a preheat starter sadly, it instant starts the lamp and causes a little bit of a 'buzz' from the ballast whilst doing so.

I'm not an electronic expert so don't claim to know much about it.

Other pics:

lamp

starter 1 of 2

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FrontSideBus

[22 Apr, 2019 at 11:05 PM]

Interesting to see it has an IC controller on it! Replace it with the guts from an EFS600 lol

fluorescent

[22 Apr, 2019 at 11:14 PM]

The efs 600 would be better IMHO, it would increase lamp life but at the expense of the 2-3 seconds preheating time

Ash

[23 Apr, 2019 at 06:32 AM]

The IC is not a programmable controller, it is a "Quad 2-input NAND Schmitt trigger" which means : 4 NAND logic gates in the chip (independent of each other), with added hysteresis on the inputs : The chip sees a logic change from "0" to "1" at smoe voltage, but from "1" to "0" at lower voltage, much like the breakdown voltqage and discharge voltage of a Neon, and in contrast to standard CMOS logic chips where there is one border value between "1" and "0". If this circuit supports preheating at all then it must be timed by one of the resistors + one of the capacitors around the chip

Comment 1 to 3 of 3

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