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Vacuum Photo Diode Light Detector Tube Geiger Counter Strobe Calibrator RCA 430, US $1130 – Picture 0
Vacuum Photo Diode Light Detector Tube Geiger Counter Strobe Calibrator RCA 430, US $1130 – Picture 0

Vacuum Photo Diode Light Detector Tube Geiger Counter Strobe Calibrator Rca 430

US $1130

  • La Valle, Wisconsin, United States
  • Jun 2nd
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This is a RCA 430 vacuum photo diode tube. It may be used to calibrate Geiger counters with. Just bias it with 300 to 1000V with a 3.3 meg limiter resistor in a light tight housing with pinhole, then use a strobe with a known FPM rate. You will read it out as counts per minute on your Geiger counter. What is nice is that it simulates a real Geiger tube signal fairly accurately. Line coupling is 3.6 KCPM, so that alone makes a handy calibration signal to feed your strobe. In fact this is what i used to calibrate my counters before i got my Eberline bench pulser. I have lots of lasers, other Geiger counters, and other unique stuff for sale this week.

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