Specialized - Photo Tube ·PhotoemissiveDetector
AEI photoemissive detector tube for industrial optical sensing and measurement applications.
27A12 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
100 V
Maximum mean cathode current
50 nA
Maximum ambient temperature
70 C
Anode-cathode capacitance
0.7 pF
Average overall sensitivity
5 uA/lumen
Maximum dark current
0.005 uA
Data set 02
Published operating points and test conditions from this source.
Maximum working voltage
100 V
Maximum mean cathode current
50 nA
Anode-cathode capacitance
0.7 pF
Average overall sensitivity
5 uA/lumen