Specialized - Photo Tube ·PhotoemissiveDetector
AEI photoemissive detector tube intended for industrial optical measurement and light-detection service.
27J12 PhotoTube; full semantic REDO from printed ratings and characteristics.
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
No fixed ratings are recorded for this section.
REDO promoted-field audit
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 working voltage
90 V
Maximum mean cathode current
2.5 uA
Maximum peak cathode current
80 uA
Anode-cathode capacitance
1.1 pF
Average overall sensitivity
125 uA/lumen
Maximum gas amplification factor
10
Data set 02
Published operating points and test conditions from this source.
Maximum working voltage
90 V
Maximum mean cathode current
2.5 uA
Maximum peak cathode current
80 uA
Anode-cathode capacitance
1.1 pF
Maximum gas amplification factor
10