Tube-number record
SS8
0 archive entries
SS8 is a tube type in the TubeDatabase archive (class: Electrometer Tube). Recorded specifications: brand VEB Funkwerk Erfurt, year 1956, construction Other / special, socket Side-contact (P-base), maximum plate voltage 15 V, and maximum plate dissipation 0.04 W. The archive does not yet hold a photographed example of this type.
BrandVEB Funkwerk Erfurt
ClassElectrometer Tube
BaseSide-contact (P-base)
Filament20 V @ 100 mA
Construction
Primary TypeOther / special
EnvelopeGlass
Sections2
Filament / Heater
Absolute Maximum Ratings
Plate Voltage15 V
Plate Dissipation0.04 W
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Operation Point A | 8 V | 100 | — | — | 0.4 mA |
| Operation Point B | 12 V | 75 | — | — | 0.6 mA |
Application Notes
Specifically designed for vacuum tube voltmeters, teraohmmeters, and measurement of extremely small currents and voltages. System I is used as the measuring system with a highly insulated control grid, while System II is used as a bridge system to compensate for power supply fluctuations.
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