Set of (5) Snap-On Tools 1/4" Drive 6 Pt. Deep Well Socket Set w/6" Extension Made in U.S.A. The Set Includes: (5) Sockets: 1/4", 9/32", 5/16", 11/32" and 3/8" 6" Extension (it looks bent in the photo but it is straight) They all have wear including dirt, some surface rust, scratches and overall usage.
Product Features: Replacement for any traditional 4 Feet (48 Inch) T8/T12 fluorescent lamps High efficacy 120 lm/watt, 16 watt, 1920 lumens, and 4000K CCT
Actual photos. Main technical parameters PMT-39A FEU-39A Photomultiplier tube PMT-39A is used in photometric devices in the wavelength range 160 – 600 nm in devices of wide application, as well as in cutting counters. The photocathode – antimony-cesium, spectral response No.
This is a nice comb-bound laser reprint of all of the tube testing data I have collected for the 539B and 539C. The 539 and 539A use different settings. The first section is the roll chart in book form.
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