B 7 S 3
0 Tubes in archive
BrandVVB-RFT
ClassOscilloscope Tube
Base14-44 A2
Filament6.3V @ 450mA
Construction
Primary TypeBreitband-Oszillographenröhre
EnvelopeGlass, 76mm diameter Planschirm
Base MaterialStandard TGL 200-8154
SectionsSingle beam CRT
Filament / Heater
Heater NotesParallelheizung
Absolute Maximum Ratings
Plate Voltage1000 V
Grid 2 Voltage1000 V
Grid 1 Voltage-200 V
Cathode Current0.2 mA
H-C Voltage180 V
Audio Performance
Key Features
- Planschirm (Flat screen)
- Nachbeschleunigung (Post-acceleration)
- Seitlich herausgeführte Ablenkplattenanschlüsse
- Breitband
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| standard | 1000V | - | - | - | 0.025mA |
Application Notes
The B 7S 3 is a broadband oscilloscope tube. It must not be operated without post-acceleration voltage. Grid 2 and Grid 4 must be electrically connected.
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