Tube-number record
AM 2
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BrandPhilips
ClassTriode L.F. amplifier and tuning indicator
BaseSide-contact (P-base)
Filament4 V @ 320 mA
Construction
Primary TypeDisplay / CRT
EnvelopeGlass
Sections2
Filament / Heater
Heater NotesIndirectly heated, AC, parallel supply
Absolute Maximum Ratings
Plate Voltage300 V
Plate Dissipation1.5 W
Grid 2 Voltage250 V
Grid 1 Voltage-1.3 V
Cathode Current12 mA
H-C Voltage50 V
Audio Performance
Key Features
- Fluorescent screen
- Luminous sector measurement
- Indirectly heated
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Triode section | 250 V | 2000 | 25000 | 50 | 3 mA |
| Indicator section - Condition 1 | 250 V | — | — | — | — |
Application Notes
As regards curves, refer to type C/EM 2. Tubes AM 2 and C/EM 2 are electrically identical except for heater ratings.
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