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2C53

National Union 2C53 very-high-mu indirectly heated high-voltage shunt-regulator triode for stabilized power supplies, with 8 kV maximum plate voltage and amplification factor 500.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: IO
Base pins: 8
Nominal heater: 6.3 V / 300 mA

Description

Very-high-mu triode amplifier for regulated high-voltage supplies and voltage amplifiers.

Socket description

International Octal

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: -
Socket code: IO
Base pins: 8
Nominal heater voltage: 6.3 V
Nominal heater current: 300 mA
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

Triode

X-ray radiationInterelectrode capacitances

Plate resistance: 525000 Ω
Transconductance: 0.00095 S
Amplification factor: 500
Max plate voltage: 8000 V
Max plate dissipation: 12 W
Max cathode current: 5 mA

National Union 2C53 high-voltage shunt-regulator triode, RMA 1946. Max plate 8000 V, plate dissipation 12 W, average plate current max 5 mA, peak plate current max 100 mA, grid voltage negative limit -200 V, heater-cathode ±300 V. Mu 500, rp 525000 Ω at plate 4000 V, gm 0.00095 A/V at grid -5 V. Interelectrode Cgp 0.62 pF, Cgk 5.20 pF, Cpk 2.30 pF. Typical shunt regulator with 5.4 kV input, 0.5 MΩ series resistor, 4 kV output, cathode 210 V, tube plate current 0.9 mA and load current 0.6 mA. 6.3 V 0.30 A indirectly heated cathode, octal base, plate top cap.

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

1938 National Union

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

The
2 in
Published source value; see source line context.
supplies or voltage amplifiers operating at plate potentials between
1 kv
Published source value; see source line context.
Heater Voltage
6.3 Volts
Published source value; see source line context.
Ancde Voltage
8000 Volts
Published source value; see source line context.
Plate Current (Peak)
100 ma
Published source value; see source line context.
Grid Voltage
-200 Volts
Published source value; see source line context.
Plate Dissipation
12 Watts
Published source value; see source line context.
Heater cathade voltage $
300 Volts
Published source value; see source line context.
Voltage
-6.3 Volts
Published source value; see source line context.
Maximum Overall Length
3 inches
Published source value; see source line context.
Maximum Seated Length
3 inches
Published source value; see source line context.
Regulated Output Veltage
4 kv
Published source value; see source line context.
Cathode Voltage
210 Volts
Published source value; see source line context.
| +
5.4 KV
Published source value; see source line context.
Y
1 MEG
Published source value; see source line context.

Characteristic

Plate Current (Average)
5 ma
Published source value; see source line context.
Current
30 Amps
Published source value; see source line context.
Plate Resistance @ Eb =
4 kv
Published source value; see source line context.
Grid to Plate
62 uuf
Published source value; see source line context.
Cathode to Plate
2.3 uuf
Published source value; see source line context.
Load Current
0.6 ma
Published source value; see source line context.