Tube-number record
HRI2
0 archive entries
HRI2 is a tube type in the TubeDatabase archive (class: Vacuum High Voltage Rectifier). Recorded specifications: brand Ferranti, year 1960, construction Rectifier, socket Octal, and maximum plate voltage 15000 V. The archive does not yet hold a photographed example of this type.
BrandFerranti
ClassVacuum High Voltage Rectifier
BaseOctal
Construction
Primary TypeRectifier
Rectifier TypeVacuum
EnvelopeGlass
SectionsSingle
Filament / Heater
MaterialThoriated tungsten
Absolute Maximum Ratings
Plate Voltage15000 V
Cathode Current25 mA
Audio Performance
Key Features
- Directly heated
- Thoriated tungsten filament
- Any mounting position
Application Notes
Operation at high anode voltage may result in the production of X-rays. Shielding is recommended. It is advisable to clean the bulb at regular intervals to avoid leakage paths from dust.
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