6LQ6

6LQ6 has no equivalent designation confirmed by the archive.

The 6LQ6 is a double-ended high perveance beam power pentode of Novar construction, intended for use as a horizontal-deflection amplifier tube in color-television receivers. It has a coated unipotential cathode and a dark heater.

Construction

The tube uses a T-12 envelope with an E9-88 Large Button Novar 9-Pin base with exhaust tip, and a top cap (C1-1 Small Outline) serving as the plate connection. Its maximum diameter is 1.562 inches and its minimum diameter is 1.438 inches. Maximum over-all length is 4.380 inches, with a seated height ranging from 3.750 to 4.000 inches. The 6LQ6 can be operated in any position.

Ratings and Characteristics

The heater is rated at 6.3 volts, AC or DC. The tube has a plate current rating of 30 watts and can withstand a plate dissipation of 200 watts for a period sufficient to permit conventional receiver protection devices to function. The General Electric Company datasheet gives a transconductance of 5800 micromhos at Eh = Ec2 = 125 V and Ec1 = −25 V, and 9600 micromhos at Eh = Ec2 = 145 V and Ec1 = −35 V. Direct interelectrode capacitance from Grid No. 1 to Plate is 0.56 pF, input capacitance from G1 to (K, G3, G2, H) is 22 pF, and output capacitance from P to (K, G3, G2, H) is 11 pF.

Electrode Arrangement

Pin assignments are: pin 1, Grid No. 2; pin 2, Grid No. 1; pin 3, Cathode; pins 4 and 5, Heater; pin 6, Grid No. 1; pin 7, Grid No. 2; pin 8, Grid No. 3; and pin 9, an internal connection that should not be used. The plate is connected to the top cap.

Datasheets

Original manufacturer datasheets for 6LQ6, hosted by Frank Philipse's Electron Tube Data sheets.

ManufacturerDesignationDatasheet
General Electric 6LQ6 PDF (276 KB)
RCA (HB3) 6LQ6 PDF (210 KB)
In the Archive

Documents held here and used to write this page.