← Browse Philips Low quality — significant gaps in core data (missing base, heater, universal parameters, or pins). Treat as a research stub; always cross-reference with datasheets.
Known Equivalents & Substitutes
WE56
Similar Tubes (Not Drop-In Compatible)
Lower-current rectifier on same P8A base — not interchangeable due to different current ratings Related variant on different base Electrical Specifications
Absolute Maximum
Anode Voltage (max) AC Voltage per Plate (max RMS) 500V
Rectifier
DC Output Current (max) DC Output Current (max) 250mA
Heater
Heater Voltage Heater Voltage 4V
Heater Current Heater Current
Notes
Higher heater current (2.3 A) than AZ1 (1.1 A), enabling higher rectified current capability. European side-contact P8A base. First documented May 1938 per Philips Bulletin. Pin Layout — P8A
1 2 3 4 5 6 7 8
1 Anode 1 (Plate 1)
2 Heater
3 Anode 2 (Plate 2)
4
Socket-Compatible Tubes ⚠ Not electrically compatible