R64A

Visitron gas-filled S1-cathode phototube recommended for industrial light-operated relay service. Gas amplification increases photocurrent, providing sensitive direct optical detection for industrial control applications.

Directly heatedCold cathodeCommon cathodeDissimilarSpecialized

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

Description

short glass envelope. This tube is recom- mended for industrial light operated relay Anode Voltage, Peak.................. QoVv 500V Luminous Sensitivity................... 200 uA/L DC 37 uA/L DC Luminous Sensitivity (25v)............. 35 uA/L DC 35 uA/L DC Gas Amplification. .................... 10 This variant uses the S1 cathode surface described by the family datasheet. The non-V variant has published gas amplification in the family table.

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

Max plate voltage: 90 V

Photoelectric section. Published anode-cathode capacitance approximately 2.5 pF.

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

195X Visitron Rauland

Published operating points and test conditions from this source.

SECTION 1

PhotoemissiveDetector

Other

Peak Anode Voltage
90 V
Variant-specific maximum rating
Anode-Cathode Capacitance
2.5 pF
Variant-specific general characteristic
Cathode Size
750
Cathode Size......................... 750"
Capacitance (Anode-Cathode) [1]
2.5 pF
Capacitance (Anode-Cathode)......... 2.5 MMF. 2.0 MMF.
Capacitance (Anode-Cathode) [2]
2 pF
Capacitance (Anode-Cathode)......... 2.5 MMF. 2.0 MMF.
Leakage Resistance (Min) [1]
1000 Mohm
Leakage Resistance (Min)............. 1000 Meg. 1000 Meg.
Leakage Resistance (Min) [2]
1000 Mohm
Leakage Resistance (Min)............. 1000 Meg. 1000 Meg.
Anode Voltage, Peak.................. QoVv
500 V
Anode Voltage, Peak.................. QoVv 500V
Luminous Sensitivity [1]
200 V
Luminous Sensitivity................... 200 uA/L DC 37 uA/L DC
Luminous Sensitivity [2]
37 V
Luminous Sensitivity................... 200 uA/L DC 37 uA/L DC
Luminous Sensitivity ( [1]
25 V
Luminous Sensitivity (25v)............. 35 uA/L DC 35 uA/L DC
Luminous Sensitivity ( [2]
35 V
Luminous Sensitivity (25v)............. 35 uA/L DC 35 uA/L DC
Luminous Sensitivity ( [3]
35 V
Luminous Sensitivity (25v)............. 35 uA/L DC 35 uA/L DC
Gas Amplification
10
Gas Amplification. .................... 10
Temperature ambient [1]
100 C
Temperature ambient. ... ........... ... 100°C 100°C
Temperature ambient [2]
100 C
Temperature ambient. ... ........... ... 100°C 100°C