TUBE: 50
FICHIER SOURCE: sheets/127/5/50.pdf
FABRICANT: Tung-Sol (Tung-Sol Lamp Works Inc., Radio Tube Division, Newark NJ)
ANNÉE: Copyright 1940
LANGUE: en

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TUNG-SOL 50
TRIODE POWER AMPLIFIER
COATED FILAMENT — 7.5 VOLTS  1.25 AMPERES  AC OR DC
GLASS BULB — ST-16 ; MEDIUM 4 PIN BASE
Schéma brochage (4D, bottom view): pin2=P (plate), pin3=G (grid), pin1/pin4=F (filament).
Dimensions: 2 1/16" max diam ; 4 1/4" / 5 1/8" / 1 1/4" max.
"THE TUNG-SOL 50 IS A FILAMENT TYPE POWER OUTPUT TUBE."

OPERATING CONDITIONS AND CHARACTERISTICS — CLASS A1 AMPLIFIER
Plate Voltage ........... 300 / 350 / 400 / 450 volts
Grid Voltage* ........... -54 / -63 / -70 / -84 volts
Plate Current ........... 35 / 45 / 55 / 55 ma.
Plate Resistance ........ 2000 / 1900 / 1800 / 1800 ohms
Transconductance ........ 1900 / 2000 / 2100 / 2100 µmhos
Amplification Factor .... 3.8 / 3.8 / 3.8 / 3.8
Load Resistance ......... 4600 / 4100 / 3670 / 4350 ohms
Power Output ............ 1.6 / 2.4 / 3.4 / 4.6 watts
* Grid voltage measured from mid-point of AC operated filament.
Self bias is recommended in all cases. The grid circuit resistance should not exceed 10 000 ohms.

DIRECT INTERELECTRODE CAPACITANCES
Grid to Filament ......... 4.2 µµf
Plate to Filament ........ 3.4 µµf
Grid to Plate ............ 7.1 µµf
(Plate 908-2, Copyright 1940 by Tung-Sol Lamp Works Inc.)