6AW8-A

6AW8-A GEC | Alldatasheet

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6AW8-A—8AWS8-A ET-T1414 . Page 14 Leto” TRIODE-PENTODE TUBES EE DESCRIPTION AND RATING = The 6AW8-A is a miniature tube containing a high-mu triode and a sharp- BASING DIAGRAM cutoff pentode. The triode section is intended for service as a sync separator and the pentode section as a video amplifier. As a result of its controlled (5) heater-warm-up characteristic, the 6AW8-A is especially suited for use in @) <6) television receivers which employ 600-milliampere, series-connected heaters. Q) /{ 1X7) The 6AW8-A differs from the 6AW8 by incorporating a controlled plate-knee (4 iy) characteristic. (2) WO Except for heater ratings, the 8AW8-A is identical to the 6AW8-A. It is specially designed for use in television receivers which employ 450-milliam- © (9) pere, series-connected heaters. GENERAL EIA 9DX ELECTRICAL 6GAW8-A BAW8-A Cathode—Coated Unipotential eater Warm-up time With Without TERMINAL CONNECTIONS Direct Interelectrode Capacitances Shieldt Shield Pin 1—Triode Cathode Pentode Section Pin 2—Triode Grid Input... occ cee ecceceeeeteeserenerere 10 10 pf Pin 4—Heater Outputs ect AB 3.6 aut Pin 5—Heater Triode Section Pin 6—Pentode Cathode, Grid Output. eee cece ee nceeeeceees TZ 0.32 ppt Pin 7—Pentode Grid Numb MECHANICAL Pin 9—Pentode Plate Mounting Position—Any Envelope—T-6 12, Glass Base—E9-1, Small Button 9-Pin MAXIMUM RATINGS Pentode Triode DESIGN-CENTER VALUES Section Section Plate Voltage... . ee eee eeeeeeeeeeeees 300 300 Volts PHYSICAL DIMENSIONS Screen Voltage—See Screen Rating Chart m Heater-Cathode Voltage Heater Positive with Respect to Cathode _ | ote Heater Negative with Respect to Cathode Grid-Number 1 Circuit Resistance WT ie) ASupersedes pages 1 and 2, dated 6-56

ELECTROMICS Page | 4-63 TRIODE-PENTODE DESCRIPTION AND RATING => The 6AW8-A is a miniature tube containing a high-mu triode and a sharp-cutoff pentode. The triode section is intended for service as a sync separator and the pentode section as a video amplifier. As a result of its controlled heater- warm-up characteristic, the 6AW8-A is especially suited for use in television receivers which employ 600-milliampere, series-connected heaters. The 6AW8-A differs from the 6AW8 by incorporating a controlled plate-knee characteristic. GENERAL ELECTRICAL ELECTRICAL (Cont'd) Cathode—Coated Unipotential Series Parallel Triode Section With Without Pentode Plate to Triode Plate: Pentode Section Grid-Number 1 to Plate: Input: MECHANICAL Pg 1 to (hn+Pk+Pg2+Pg3+is.)..10 10 pf Mounting Position—Any Output: Envelope—T-614, Glass MAXIMUM RATINGS DESIGN-MAXIMUM VALUES Pentode Triode Pentode Triode Section Section Section Section Positive De Ce iaNuntet Vole. ae 0 Volts Heater Negative with Respect to Cathode and environmental conditions applicable to a bogey electron and throughout life no design-maximum value for the intended tube of a specified type as defined by its published data and service is exceeded with a bogey tube under the worst should not be exceeded under the worst probable conditions. _ probable operating conditions with respect to supply-voltage The tube manufacturer chooses these values to provide variation, equipment component variation, equipment control acceptable serviceability of the tube, making allowance for adjustment,.load variation, signal variation, environmental the effects of changes in operating conditions due to varia- conditions, and variations in the characteristics of all other tions in the characteristics of the tube under consideration. electron devices in the equipment. PHYSICAL DIMENSIONS TERMINAL CONNECTIONS BASING DIAGRAM Zuax: Pin 1—Triode Cathode Pin 2—Triode Grid [IN Pin 3—Triode Plate (4) () (6) aux Pin 4—Heater 71 SS ‘7 Pin 5—Heater (3) YX 7) ted Pin 6—Pentode Cathode, Grid (4 it] x Number 3, and Internal QE wa . Shield eek Pin 7—Pentode Grid Number 1 ©) (9) Pin 8—Pentode Grid Number 2 Tih Screen) vid Pin 9—Pentode Plate BA 90K EIA 6-3 GENERAL @@ ELECTRIC Supersedes ET-11414 dated 9-57

CHARACTERISTICS AND TYPICAL OPERATION CLASS A; AMPLIFIER Pentode Triode Section Section Grid-Number 1 Voltage, approximate * The time required for the voltage across the heater to reach 80 percent of its rated value after applying 4 times rated heater voltage to a circuit consisting of the tube heater in series with a resistance equal to 3 times the rated heater voltage divided by the rated heater current. + With external shield (EIA 315) connected to cathode of section under test. $ Applied for short interval (two seconds maximum) so as not to damage tube. AVERAGE PLATE CHARACTERISTICS TRIODE SECTION FREE PEt / FH EHH EEG HEEG HAHEI GEA ataatAGy tudaaHaHnaucgccaceeeeeeeeeeeeeeeeeeceee Pee Meee EEE Baadsutsataafeafcafafeaf teuay fezteat cians ftatcaitaitow 2tcataatzs en EES AH FE er = eareo vavue [HEE a eee erage eee ea ace cee eee ee ee EE EERE tH Sesdaeuab, fusdetaesctane ers scredateet Gvedaezcabueratetss HVSEEEESRR HasET EPR fMfar AU pafHasetercunaE Eee auOEPeeteseeeeeertaarerTT TaEET Ta poe) fede detesesststacuaateatia (UUteedeoessndusscsst attat dieeeee a EA eee ceeeOOonasaaatifii{ itll fie si2cs SsHLCGSEOELOGAUOELOE/EaHEGQUGHCD’gtOMEEGAtOGEES @UOaRGEHTEGEO) (eect teat tcdteasteateaat adi Sansa EUTGeaHHdT TET GTer AT EE PEERooe eet eToeozte Ue Eeeeedady OSE Ececcaanagi eeeeeatet

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CHARACTERISTICS AND TYPICAL OPERATION ‘CLASS A; AMPLIFIER Pentode Triode Section Section Grid-Number 1 Voltage. eee cette eee eee OA senees —2.0 Volts Plate Current. . det encenernereeeecrensentonecrcesec cee eeMG 15 4.0 Milliamperes Grid-Number 1 Voltage, approximate FOOTNOTES * Heater voltage for a bogey tube at If =0.6 amperes. t+ For series heater operation, the equipment designer should design the equipment so that heater current is centered at the specified bogey value, with heater supply variations restricted to maintain heater current within the specified tolerance. t The equipment designer should design the equipment so that heater voltage is centered at the specified bogey value, with heater supply variations restricted to maintain heater voltage within the specified tolerance. § Heater current of a bogey tube at Ef=6.3 volts. | The time required for the voltage across the heater to reach 80 percent of its rated value after applying 4 times rated heater voltage to a circuit consisting of the tube heater in series with a resistance equal to 3 times the rated heater voltage divided by the rated heater current. # With external shield (EIA 315) connected to cathode of section under test. AApplied for short interval (two seconds maximum) so as not to damage tube. General Electric Company or others. Neither the disclosure of any information General Electric Company assumes no liability for patent infringement arising AVERAGE PLATE CHARACTERISTICS SE (RR eg RESEAE Eco ened CET CHENGH TODO AQ Gai eat fatt/cieazccatocas atcstesstesttect radios? taatinizezttcal SUESUESHORIESUERE Rues’senecUsesuesn’ soscesceeseene Susnecssncceeess sesassuSedSsceesseee=ezel PATE aubaauobuesuey sotscessssezanyatactaeecssgygrstrcesccsesssvctsstacinasal roy man Pet Po HY ede at at er are fee de ee estat eect at aa GUaEetaeHeer Ee a FH HAH A HH +H HEH = EEEEEEEEEEEEEEEEHT EEE EE EE EEE Eee EE

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