Tube-number record
EL 1C
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BrandELECTRONS, INCORPORATED
ClassFull-Wave Rectifier
Base4-pin
Construction
Primary TypeOther / special
Rectifier TypeFull-Wave
EnvelopeGlass
Base MaterialPlastic/Metal Bayonet
SectionsDual Anode
Filament / Heater
MaterialTantalum Anodes
Warm-up Time20s
Absolute Maximum Ratings
Plate Voltage725 V
Cathode Current1000 mA
Audio Performance
Key Features
- Tantalum Anodes
- Xenon Gas Filling
- Medium 4-pin bayonet base
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Rectifier | — | — | — | — | 1000 mA |
Application Notes
The filament must be lit before drawing d-c. load current. The filament voltage should be phased so the a-c. voltage (with the tube out of the socket and some d-c. load connected) from pin #1 to pin #2 is lower than from pin #1 to pin #3. This phasing of filament voltage relative to anode voltage insures a lower arc drop and somewhat longer life.
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