Technical Data | Nominal | Min | Max | Notes & Comments |
Filament Voltage/Current | 6.3V @ 6.6A | 5.7V @ 6.0A | 6.9V @ 7.2A | Parallel Operation |
Filament Voltage/Current | 12.6V @ 3.3A | 11.4V @ 3.0A | 13.8V @ 3.6A | Series Operation |
Absolute Maximum Plate Voltage | N/A | N/A | 600V | From Cold Tube Warm Up |
Plate Voltage - Case #1 | N/A | N/A | 450V | Plate Dissipation not to exceed 30W |
Plate Voltage - Case #2 | N/A | N/A | 250V | For Plate Dissipation > 30W |
Plate Current | N/A | N/A | 470mA/630mA** | See special note below |
Transconductance mA/V | N/A | 30 | 50 | Delta Ip/Delta Vg |
Grid Voltage | N/A | -0.5V | -150V | Not specified for positive values |
Filament Insulation Rating | N/A | -300V | +300V | Rugged... |
Grid Circuit Resistance | N/A | N/A | 200K | Do not exceed |
Minimum Warm Up time | N/A | 2 minutes | N/A | No less than this time |
Plate Dissipation 1 Cathode Only | N/A | N/A | 45W | One filament heating |
Plate Dissipation Both Cathodes | N/A | N/A | 60W | Two filament heating |
Service Life | 2000 hrs | |||
Shelf Life | 12 yrs | |||
Height | 130mm | |||
Diameter | 65mm |
Interelectrode Capacitances | Miller | Grid-Cathode | Plate-Cathode | Filament-Cathode | Filaments |
Units in Picofarads | 24 or 38 | 23 or 37 | 9.5 or 11.5 | 60 | One or both |
This was translated from the Russian Specification Sheet received when I recently purchased some 6C33..
Translated by Roman Litovsky 5/27/98.
This page created 5/28/98. ©1998 By KTA