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- Electrical Summary
Heater 6.3 V / 300 mA Plate 300 V / 3 W Screen 125 V / 0.6 W rP 250,000 Ω gm 4.5 mA/V - Sections
- 1
Refer to variations
16,717 tubes indexed
Electronic tube and vacuum tube catalog
Showing EM85 and all of its variations. Other filters are hidden while viewing variations.
Catalog results
2 tubes found.2 tubes found
- Base
- Refer to variations
- Socket code
- B9A
- Electrical Summary
Heater 6.3 V / 300 mA - Sections
- 1
B9A - Small-button Noval 9-contact
Electron-ray tuning indicator of the EM71/EM85 family, providing a fluorescent visual pattern that varies with receiver control voltage for tuning and signal-level indication.
| Expand sections | More | Electrical Summary | General Summary | ||||||||||||
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| Voltage Pentode - Remote Cutoff (single)Pentode |
| Refer to variations | |||||||||||||
| Tuning IndicatorTuningIndicator |
| B9A - Small-button Noval 9-contact Electron-ray tuning indicator of the EM71/EM85 family, providing a fluorescent visual pattern that varies with receiver control voltage for tuning and signal-level indication. |
Showing 1-2 of2 tubes