Tube-number record
85A1
0 archive entries
85A1 is a tube type in the TubeDatabase archive (class: Voltage Reference Tube). Recorded specifications: brand Philips, construction Other / special, socket Loctal, and maximum plate voltage 125 V. The archive does not yet hold a photographed example of this type.
BrandPhilips
ClassVoltage Reference Tube
BaseLoctal
Construction
Primary TypeOther / special
EnvelopeGlass
SectionsSingle
Filament / Heater
Absolute Maximum Ratings
Plate Voltage125 V
Cathode Current8 mA
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Voltage Stabilization | 85 V | — | 285 | — | 4 mA |
Application Notes
The tube should be operated only with the cathode negative and the anode positive. Equilibrium conditions are normally reached after 3 minutes. Tube should not be subjected to severe shock or continuous vibration.
Datasheets
Datasheet: 85A1.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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