HERE ARE SOME PARTS FROM A PRECISION APPARATUS SERIES 654 TUBE & HIGH SENSITIVITY SET TESTER. HERE IS WHAT I HAVE: TWO TUBE ROLLER CHARTS AND METAL HOLDER LOOSE CHART HAS A COUPLE OF HOLES RIGHT AT THE START BUT OTHER WISE NICE CONDITION..CHART ON ROLLER HOLDER IS GOOD. ONE TUBE 5Y3 GT G.E.
The list item is a recrystallized silicon carbide (ReSiC) tube for thermocouple protecton. Its outer and inner diameters are 30 and 20mm and overall length is 600mm (23.6"), respectively. One end is closed and the other is open.
Here we have for sale one Eico brand model 628 conductance-type tube tester. Don't know if this one was built from a kit, or if it was factory-built. The build quality suggests to me that it was factory-made, but who knows?
UP FOR AUCTION IS A VINTAGE PRECISION MODEL 10-12 ELECTRON VACUUM TUBE MASTER TESTER BATTERY TEST. THERE IS NORMAL AGE WEAR, USAGE WEAR, SCRATCHES SOME AGE SPOTTING FROM AGE MUSTY SMELL. THE ONLY TESTING I HAVE DONE IS TO PLUG IT IN AND WATCH THE RED LIGHT COME ON.
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