1950
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BrandRCA
ClassIonization Vacuum-Gauge Tube
BaseTerminal Leads
Construction
Primary TypeIonization
EnvelopeST-19
Base MaterialSoft Glass
SectionsDual Tungsten Filament
Filament / Heater
MaterialTungsten
Absolute Maximum Ratings
Audio Performance
Key Features
- Soft-glass bulb
- Contains two filaments (one spare)
- Corning Code 012 Lead glass tubulation
Application Notes
The filament voltage should be kept as low as possible during degassing because use of a low filament voltage materially increases filament life.
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