19Y3
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BrandPhilips
ClassHalf-wave high-vacuum rectifier
BaseNoval (B9A)
Filament19V @ 300mA
Construction
Primary TypeRectifier
Rectifier TypeHalf-wave
EnvelopeT6 1/2
SectionsSingle
Filament / Heater
Absolute Maximum Ratings
Plate Voltage700 V
Cathode Current180 mA
H-C Voltage550 V
Audio Performance
Key Features
- Coated unipotential cathode
- Small button noval base
- High vacuum
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| 250V RMS Input | 250V | - | - | - | 180mA |
| 240V RMS Input | 240V | - | - | - | 180mA |
| 220V RMS Input | 220V | - | - | - | 180mA |
| 200V RMS Input | 200V | - | - | - | 180mA |
| 127V RMS Input | 127V | - |
Application Notes
When two tubes are connected in parallel, the maximum value of the capacitor may be increased to 100 µF. In this case each plate must have the minimum total effective supply impedance specified.
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