Tube-number record
ECR30
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ECR30 is a tube type in the TubeDatabase archive (class: Cathode Ray Tube). Recorded specifications: brand Mullard, construction Display / CRT, socket CRT base (B12 family), and maximum plate voltage 1000 V. The archive does not yet hold a photographed example of this type.
BrandMullard
ClassCathode Ray Tube
BaseCRT base (B12 family)
Filament4 V @ 1 mA
Construction
Primary TypeDisplay / CRT
EnvelopeGlass
Sections1
Filament / Heater
Heater NotesVh-k max: 50V
Absolute Maximum Ratings
Plate Voltage1000 V
H-C Voltage50 V
Audio Performance
Key Features
- 3-in. diameter screen
- Electrostatic deflection
- Symmetrical operation
- Green fluorescent colour
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Symmetrical operation | 800 V | — | — | — | — |
Application Notes
Oscilloscope tube primarily intended for symmetrical operation.
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