Tube-number record
GR12G
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ClassDigitron Cold-Cathode Letter Tube
BaseCRT / special base
Construction
Primary TypeOther / special
EnvelopeSide-Viewing
Sections12 Character
Filament / Heater
Absolute Maximum Ratings
Cathode Current9 mA
Audio Performance
Key Features
- Side-viewing
- 12 Character (A-L inclusive)
- Cold-cathode
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| D.C. operation | 250 V | — | 10000 | — | 7.5 mA |
| A.C. operation (50 c.p.s.) | 210 V | — | 12000 | — | — |
Application Notes
A cathode left floating will assume some potential between that of the anode and the glowing cathode. Non-glowing cathodes must not be returned to a bias rail, but should be left disconnected.
Datasheets
Datasheet: GR12G.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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