Specialized - Photo Tube ·PhotoemissiveDetector
Gas-filled ultraviolet-sensitive detector designed for furnace flame control, fire detection, and ultraviolet measurement.
The Sylvania P568 is a gas-filled ultraviolet-sensitive detector for furnace flame control, fire detection, and UV measurements.
Small-button Noval 9-contact
General specifications
Properties common to every published source and operating point.
Electrical assignments shared by every tube using this base designation.
No verified pinout is recorded for this base designation.
1 physical section, each with unique specifications.
Section 1
Published ratings and characteristics promoted semantically from the approved source.
Source-dependent data
Each block preserves the test conditions and published values from one reference. Values from different sources are intentionally kept separate.
Data set 01
Published operating points and test conditions from this source.
Maximum Cathode Current
10 mA
AC Supply Voltage
1000 V
Average Tube Current Maximum
10 mA
Tube Voltage Drop
300 V
Approximately +/-15 V
Average Operating Current
6 mA
Data set 02
Published operating points and test conditions from this source.
Maximum Anode Supply Voltage
1000 V
Maximum Average Anode Current
10 mA
Minimum Ambient Temperature
-20 degC
Maximum Ambient Temperature
100 degC
Anode Supply Voltage
500 V
CandleFlameAt4to5Inches
Auxiliary Supply Voltage
300 V
CandleFlameAt4to5Inches
Average Anode Current
6 mA
50or60Hz
Spectral Sensitivity Minimum
1900 angstrom
Spectral Sensitivity Maximum
2900 angstrom
Peak Sensitivity Wavelength
2400 angstrom
Maximum Background Count Rate
1 ppm
CosmicRadiationAtSeaLevel