Specialized - Photo Tube ·PhotoemissiveDetector
AEI photoemissive detector tube for photoelectric measurement and industrial light-sensing applications.
27C12 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
250 V
Maximum mean cathode current
10 nA
Maximum ambient temperature
100 C
Anode-cathode capacitance
1.4 pF
Average overall sensitivity
20 uA/lumen
Recommended working voltage
50 V
Data set 02
Published operating points and test conditions from this source.
Maximum working voltage
250 V
Maximum mean cathode current
10 nA
Anode-cathode capacitance
1.4 pF
Recommended working voltage
50 V