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7730
- Maker
- Cbs
- Brand
- Heintz & Kaufman

Tube-number record
2 archive entries
7730 is a tube type in the TubeDatabase archive (class: Medium-Mu Twin Triode). Recorded specifications: brand CBS, construction Dual triode, base Gold plated base pins, socket Noval (B9A), maximum plate voltage 330 V, and maximum plate dissipation 3 W. The archive holds 2 photographed examples of this type.
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class A Amplifier (Section 1) | 100 V | 3100 | 6500 | 20 | 11.8 mA |
| Class A Amplifier (Section 2) | 250 V | 2200 | 7700 | 17 | 10.5 mA |
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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