BALLAST
0 Tubes in archive
BrandNational Union Radio Corporation
ClassBallast Tube
BaseOctal
Filament21V @ 300mA
Construction
Primary TypeBallast
EnvelopeHG
SectionsSingle
Filament / Heater
Heater NotesListed as 21 volt drop at 300 mA (OCR interpreted 'al volt drop 740 wa')
Absolute Maximum Ratings
Audio Performance
Key Features
- HG type shell
- Octal 6 pin base
Application Notes
Ballast tube for voltage drop in heater strings.
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