Tube-number record

21AXP22, 21AXP22A

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BrandSylvania

ClassColor Television Picture Tube

BaseCRT base (B12 family)

Filament6.3 V @ 1.8 mA

Construction

Primary TypeOther / special

EnvelopeRound Metal Shell

Sections3

Filament / Heater

Heater NotesHeater current tolerance is +/- 10%

Absolute Maximum Ratings

Plate Voltage27500 V

Grid 2 Voltage880 V

Grid 1 Voltage-440 V

Cathode Current0.5 mA

H-C Voltage200 V

Audio Performance

Key Features

Electrostatic Focus
Magnetic Convergence
Magnetic Deflection
Aluminized Tri-color Phosphor-dot screen
Spherical Faceplate
Filter Glass

Typical Operation

Mode	Plate V	Gm (µmhos)	Rp (Ω)	µ	Plate mA
Equipment Design Range (at 25kV Anode)	25000 V	—	—	—	—

Application Notes

The 21AXP22A features an internal neck coating having high resistance which eliminates the need for an external protection resistor against momentary internal arcs.

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