Tube-number record
7205
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7205 is a tube type in the TubeDatabase archive (class: Cold-Cathode Trigger Tube). Recorded specifications: brand CBS-HYTRON, construction Other / special, socket Miniature 7-pin (B7G), maximum plate voltage 1000 V, and maximum plate dissipation 1 W. The archive does not yet hold a photographed example of this type.
BrandCBS-HYTRON
ClassCold-Cathode Trigger Tube
BaseMiniature 7-pin (B7G)
Construction
Primary TypeOther / special
EnvelopeTS 1/2
SectionsSingle
Filament / Heater
Absolute Maximum Ratings
Plate Voltage1000 V
Plate Dissipation1 W
Grid 1 Voltage80 V
Cathode Current500000 mA
Audio Performance
Key Features
- High hold-off voltage
- Short anode delay times
- High pulse currents
- Dark-start design
- Operates without extraneous energy/light
- Withstands 100g peak impact shocks
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Typical Operation | 550 V | — | — | — | 0.05 mA |
Application Notes
Trigger and timer tube used in applications where high hold-off voltage and high pulse currents are required. Special construction withstands wide temperature range and severe vibrational stresses.
Datasheets
Datasheet: 7205.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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