Tube-number record
4064-A / 4064-B
0 archive entries
4064-A / 4064-B is a tube type in the TubeDatabase archive (class: Half Wave, Hot Cathode Mercury Vapour Rectifier). Recorded specifications: brand Standard Valves, construction Rectifier, base Standard, socket 4-pin, and maximum plate voltage 10000 V. The archive does not yet hold a photographed example of this type.
BrandStandard Valves
ClassHalf Wave, Hot Cathode Mercury Vapour Rectifier
Base4-pin
Construction
Primary TypeRectifier
Rectifier TypeMercury Vapour
EnvelopeGlass
Base MaterialStandard
SectionsSingle
Filament / Heater
MaterialOxide coated (Shielded)
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Circuit 2 (2 valves) | 3200 V | — | — | — | 2500 mA |
| Circuit 3 (4 valves) | 6400 V | — | — | — | 2500 mA |
| Circuit 4 (3 valves) | 4550 V | — | — | — | 3750 mA |
Application Notes
After shipment the filament must be run at full voltage for 30 minutes before any anode voltage is applied. The filament transformer should be so connected that the anode and filament voltages are 90° out of phase. The maximum peak anode current and output current should be reduced by 50 per cent if quadrature operation is not possible.
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