3520

Philips photoelectric tube for direct light detection and measurement. Manufacturer documentation provides construction, ratings, characteristics, operating data, and stated applications for converting incident light into an electrical photocurrent.

Directly heatedCold cathodeCommon cathodeDissimilarSpecialized

Sections: 1
Base: -
Socket code: -
Base pins: -
Nominal heater: -

Description

3520 is a photoelectric tube for light detection and measurement. The supplied Philips datasheet was read for construction, ratings, characteristics, operating data, and stated applications.

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: -
Socket code: -
Base pins: -
Nominal heater voltage: -
Nominal heater current: -
Parallel heater voltage: -
Parallel heater current: -
Series capable: No

Terminal pinout

Electrical assignments shared by every tube using this base designation.

No verified pinout is recorded for this base designation.

Section ratings

1 physical section, each with unique specifications.

Section 1

PhotoemissiveDetector

X-ray radiationInterelectrode capacitances

No fixed ratings are recorded for this section.

Published ratings/characteristics are additionally preserved in TUBE_SECTION_PARAMETER.

Source-dependent data

Operating conditions by source

Each block preserves the test conditions and published values from one reference. Values from different sources are intentionally kept separate.

Data set 01

1999 Philips 0-D

Published operating points and test conditions from this source.

SECTION 1

PhotoemissiveDetector

Characteristic

Sensitivity . . . . . . N = 2'
5 mA
Sensitivity . . . . . . N = 2'5 mA/lm
First anode voltage . . . Va, = about
70 v
First anode voltage . . . Va, = about 70 v
cathode voltage . . . Vks, = about
210 v
cathode voltage . . . Vks, = about 210 v
sion cathode voltage . Vs, = about
420 v
sion cathode voltage . Vs, = about 420 v
sion cathode voltage . Vs, = about
560 v
sion cathode voltage . Vs, = about 560 v
Second anode voltage . . Vq, = about
630 v
Second anode voltage . . Vq, = about 630 v
to a sensitivity of
107 mA
to a sensitivity of 107 mA/W.
stage of multiplication, the second anode will be about
110 V
stage of multiplication, the second anode will be about 110 V positive in relation
corresponds to a sensitivity of
107 mA
corresponds to a sensitivity of 107 ma/W. This expression for the sensitivity
1/30 Im, while anode curreni must never rise to about
100 pA
1/30 Im, while anode curreni must never rise to about 100 pA.

Capacitance

Anode-to-cath. capacity . Cak
4 pF
Anode-to-cath. capacity . Cak = 4 pF

Other

Mazximum anode current . lamax
100 µA
Mazximum anode current . lamax = 100 uA
without causing a rise of anode current (Va: max
700 V
without causing a rise of anode current (Va: max = 700 V); in other words the