UFR is same for 2010/2510/3010/3510/200/250/350/222/282/362/223/283/363/423. Press seems to go multiple rebuilds in past 3510 & 350 series.
I have some with one of the two lamp's filament broken, & warm up failure codes. Looking into using lamps from previous series since they are plentiful from trade-ins. Will have to modify the holders and splice/solder the wires, but that's why we are called tech's.
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