Voltage Drop (typical)Forward Voltage Drop (read from Abb. 3 I/V curve at 60 mA per plate)28V
Max C-input Filter CapacitorMax C-input Filter Capacitor60
Notes
The product of doubled transformer voltage and rectified current must not exceed 60,000 VA.
Maximum load capacitor: 60 uF.
European side-contact P8A base — not compatible with Octal or American bases.
Peak Inverse Voltage is not explicitly stated in the Telefunken/Philips AZ1 datasheet; PIV=1414V is derived from the standard full-wave capacitor-input relation PIV = 2 × √2 × Va_max (500 Vrms). This matches the convention used for AZ12, UU4, UU5, EZ41 in this repo.
Vdrop=28 V is read from the single-plate I/V characteristic (Philips datasheet Abb. 3, Ia per anode vs Va) at 60 mA per plate (= Idc_max 120 mA / 2 for full-wave). The datasheet does not state a discrete Vdrop value.
Pin Layout — P8A
1Anode 1 (Plate 1)
2Heater
3Anode 2 (Plate 2)
4
Socket-Compatible Tubes ⚠ Not electrically compatible