110V Spectrum Tube Power Supply with Safety Door Pack Size_4 contrasting with the dark-state high-resistance

contrasting with the dark-state high-resistance reading

1 inches while the swivel boss head delivers 360-degree angular positioning and fits rods up to 18mm in diameter

Heavy-gauge copper outer vessel with internal sulfate-crystal shelf

with both 4mm stackable sockets and screw terminals so leads wire in without an adapter to either bench standard

allowing a sodium or filament lamp to be aimed precisely onto a spectrometer slit or refraction-cell setup

110V Spectrum Tube Power Supply with Safety Door Pack Size_4 contrasting with the dark-state high-resistanceInterlocked safety door cuts high voltage whenever opened, energizing spectrum tubes from a 110V source to excite hydrogen, helium, neon, and other gas discharge samples.