Known Equivalents & Substitutes
1064G1064G4100GL4/1DFW751805PV4100WE51
Similar Tubes (Not Drop-In Compatible)
AZ1
Successor Telefunken full-wave rectifier (1935) — different base type and higher performanceRGN1054
Predecessor model — lower ratingsElectrical Specifications
Absolute Maximum
Anode Voltage (max)Max AC Voltage per Anode (RMS)500V
Rectifier
DC Output Current (max)Max DC Output Current (at 500V)60mA
Max DC Output Current (at 300V)Max DC Output Current (at 300V)100mA
Heater
Heater VoltageHeater Voltage
Notes
- Directly heated cathode with 4V/1A filament.
- Dual-anode full-wave rectifier rated for 2x 500V at 60 mA or 2x 300V at 100 mA.
- Maximum Ua x Ia product is 30,000 within the 300-500V range.
- 15 identical replacement types exist per Radiomuseum including types from multiple European manufacturers.
- Produced from 1932, superseded by the AZ1 in 1935.
- European B4 base (4-pin) with directly heated cathode — filament connects to center tap of HV transformer secondary.
Pin Layout — B4
1Anode 1
2Filament
3Anode 2
4Filament
Socket-Compatible Tubes ⚠ Not electrically compatible