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Power - TV Horizontal Output (sweep) ·BeamPower

12CR5

12CR5 miniature beam-power television horizontal-deflection output tube with 12.6 V, 0.6 A controlled-warm-up heater and plate top cap.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
-
Base pins
9
Nominal heater
12.6 V / 600 mA

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
-
Socket code
-
Base pins
9
Nominal heater voltage
12.6 V
Nominal heater current
600 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

Beam Power

X-ray radiationInterelectrode capacitances
Plate resistance
18000 Ω
Transconductance
0.006 S
Max plate voltage
600 V
Max screen voltage
200 V
Max plate dissipation
11 W

Horizontal sweep beam power section. 5500 V maximum positive plate pulse (6000 V absolute); negative pulse OCR ambiguous. Typical Class A1 at Va=250 V, Vg2=150 V, Vg1=-22.5 V: rp=18kΩ, gm=6000 µS, screen current 2.1 mA. Peak heater-to-cathode +/-200 V. Grid1-plate 0.32 pF; input 12.9 pF; output 6.9 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

9999 Mixed 2000

Published operating points and test conditions from this source.

SECTION 1

Beam Power

Other

  • Plate voltage

    250 V

    12CR5 Westinghouse Class A1 typical; Va=250 V, Vg2=150 V, Vg1=-22.5 V

  • Screen voltage

    150 V

    12CR5 Westinghouse Class A1 typical; Va=250 V, Vg2=150 V, Vg1=-22.5 V

  • Control-grid voltage

    -22.5 V

    12CR5 Westinghouse Class A1 typical; Va=250 V, Vg2=150 V, Vg1=-22.5 V

  • Screen current

    2.1 mA

    12CR5 Westinghouse Class A1 typical; Va=250 V, Vg2=150 V, Vg1=-22.5 V

Characteristic

  • Plate resistance

    18000 Ω

    12CR5 Westinghouse Class A1 typical; Va=250 V, Vg2=150 V, Vg1=-22.5 V

  • Transconductance

    6000 µS

    12CR5 Westinghouse Class A1 typical; Va=250 V, Vg2=150 V, Vg1=-22.5 V