Tube-number record
1738
0 archive entries
1738 is a tube type in the TubeDatabase archive (class: Rectifier). Recorded specifications: brand Philips, construction Other / special, socket Jumbo, and maximum plate voltage 300 V. The archive does not yet hold a photographed example of this type.
BrandPhilips
ClassRectifier
BaseJumbo
Filament1.9 V @ 18000 mA
Construction
Primary TypeOther / special
Rectifier TypeDouble-anode
EnvelopeGlass
Sections2
Filament / Heater
Materialoxide-coated
Warm-up Time120s
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Arc Voltage Drop | 9 V | — | — | — | 7500 mA |
Application Notes
Application: Battery charger (15 A per valve, max. 36 Pb-cells). The screen 's' must be connected to the cathode via a resistor of 10 kOhms, 0.5 W. After transport or long interruption, warmup time should be 5 minutes.
Datasheets
Datasheet: 1738.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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