50DC4 GEC | Alldatasheet
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TUBES FOR HALF-WAVE POWER RECTIFIER APPLICATIONS —— TZ DESCRIPTION AND RATING =] The 50DC4 is a miniature half-wave rectifier designed for use in line- BASING DIAGRAM operated equipment having series-connected heaters. The heater is tapped to permit operation of a panel lamp. 4) XK SND GENERAL ELECTRICAL @) ©) Cathode—Coated Unipotential A] / MECHANICAL Mounting Position—Any Envelope—T-5¥2, Glass TERMINAL CONNECTIONS Base—E7-1, Miniature Button 7-Pin Pin 1—No Connection Pin 2—No Connection MAXIMUM RATINGS . Pin 3—Heater RECTIFIER ee eenaxiMoM VALUES Pin 4—Heater DC Output Current Pin 6—Heater Tap Heater-Cathode Voltage PHYSICAL DIMENSIONS Design-Maximum Ratings are limiting values of operating and environmental con- ditions applicable to a bogey tube of a specified type as defined by its published data, and should not be exceeded under the worst probable conditions. “ The tube manufacturer chooses these values to provide acceptable serviceability of the tube, taking responsibility for the effects of changes in operating conditions 2g 23 due to variations in tube characteristics. Mak ox The equipment manufacturer should design so that initially and throughout life no design-maximum value for the intended service is exceeded with a bogey tube under the worst probable operating conditions with respect to supply-voltage variation, equipment component variation, equipment control adjustment, load variation, signal variation, and environmental conditions. EIA 5-3
‘5-58 CHARACTERISTICS AND TYPICAL OPERATION HALF-WAVE RECTIFIER WITH PANEL LAMP NUMBER 40 OR NUMBER 47 Heater Voltage (Pin 3 to Pin 4) 45 45 45 45 Volts Heater-Tap Voltage (Pin 4 to Pin 6) 55 55 55 5.5 Volts Heater Current (Between Pins 3 and 6) 150 150 150 150 Milliamperes AC Plate-Supply Voltage, RMS 117 117 117 117 Volts Filter Input Capacitor 40 40 40 40 Microfarads Total Effective Plate-Supply Impedance 15 15 15 15 Ohms Panel-Lamp Shunting Resistor 450 200 100 75 Ohms DC Output Current 70 80 90 100 Milliamperes HALF-WAVE RECTIFIER WITHOUT PANEL LAMP DC Output Voltage at Filter Input, approximate Tube Voltage Drop *Operation without panel lamp. TYPICAL CIRCUIT FOR OPERATION TYPICAL CIRCUIT FOR OPERATION WITH PANEL LAMP WITHOUT PANEL LAMP | ES 5 5 (>) Z A-C LINE 2 An Os -¢ OUTPUT LINE D-¢ OUTPUT 3 o u OTHER OTHER HEATERS HEATERS R R O O Rs=PANEL-LAMP SHUNTING RESISTOR DROP ACROSS R AT 0.15 AMPERE SHOULD EQUAL DIFFERENCE BETWEEN LINE VOLTAGE AND TOTAL OF ALL RATED HEATER VOLTAGES
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