12DT8 GEC | Alldatasheet
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This bulletin also applies to the 6DT8. Except for its 6.3-volt/0.3-ampere heater, the 6DT8 is like the |2DT8. EE 12DT8 epTs 9-Pin Miniature Type TENTATIVE DATA RCA-120T8 is a general-purpose high-mu twin AMPLIFIER - Class Ay triode of the 9-pin miniature type intended Values are for Bach Unit for use as an rf amplifier and as a combined Maximum Ratings, Design-Center Values: oscillator-mixer in fm tuners. This tube is also PLATE VOLTAGE... + ee se ee + 300 max, volts useful in awide variety of applications in radio GRID VOLTAGE: and television receivers. Negative bias value... ee ee 50 max, volts PLATE DISSIPATION. ee ee ee eee 245 max. watts In the 12078, the two units are effectively PEAK HEATER-CATHODE VOLTAGE: isolated from each other by an internal shield Heater negative with respect having aseparate base-pin terminal. As a result . fo carhode «+ + + 200, maxs volts arn ; Heater positive with respect in high-frequency applications. In addition, scbinee separate pin terminals for each cathode provide Seer ies: ge too 950 yolts the equipment designer with greater flexibility Cathogecuias Resisvor, 2 oll sooo hme of circuit connections. amplification Factor... ee 60 60 Plate Resistance (Approx.) . . . - 15000 10900 ohms Plate Current... se see eee 3.710 ma Electrical: Grid voltage (Approx.) for plate Heater, for unipotential Cathodes: Gurrent of 10 was... +. - “5-12 volts voltage (AC or OC). ee ee eae 12.6 volts Maximum Circuit Values: Grid-Orive Operation®: >: Grid to plates... 166 16 uuf © with external shield, JETEC No.315, connected to cathode Grid to cathode, of unit under test. neater, and internal at a ant G with external shield, JETEC No.315, connected to grid Plage, to cathode: rnal © dc component must not exceed 100 volts. shield. esse eee 1.6 1.66 pyat Cathode-Drive Operation:™ OPERATING CONSIDERATIONS Cathode to grids neater, _ 5.3 ust The maximum ratings in the tabulated data for Plate to grid, heater, . the 12DT8 are working design-center maximums and internal shield. . - 2.8 uf established according to the standard design Mechanical: center system of rating electron tubes. Tubes Maximum Seated Lengthy . 6. ee ee ee ee ee DH15/16" will not be exceeded when the equipment is Lengths Base Seat to Buld Top even g g/gaeOPEFated from ac or de power-line supplies whose Maximum Diameter sll ll tll le te eee Tfex Mtormal voltage, including normal variations, Bulow eee ee ee ee cele le le T6et/2 falls within £ 10 percent of line-center voltage Devices and arrangements shown or described herein may use patents of RCA or others. Information contained herein is furnished without responsibility dy RCA for its use and without prejudice to RCA’S patent rights. TMK ®, Marce Regitrada ELECTRON TUBE DIVISION tote,eore 7257 Printed in USA RADIO CORPORATION OF AMERICA, HARRISON, NEW JERSEY ’
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