The 6CL6  (P/N 154-031, 154-0031-00, 154-0286-00) is a 7.5 W power pentode vacuum tube with a B9A (Noval) miniature 9-pin base.

6CL6 Tube

It is used as the output tube of the vertical amplifier in the 310A, 515, 531, 533, 535, and 3A74.

Aged/Checked/Matched Pair Details
Used in Tek Part# S/N Range
524 (V21,V22) 157-0006-00 All
524 (V12,V13) 157-0007-00 All
525 (V85,V86) 157-0006-00 1550-up
531 (V508,V509) 157-0021-00 593-7600
532 (V508,V509) 157-0021-00 1059-8627

Some data on the aging procedure can be found on pages 11, 12 and 13 of the Tube Aging document.

Some data on the selection/checking procedure can be found on pages 6, 7, and 21 of 157- Checked and Tested Tubes: Specs and Procedure.

See also 6197.

Links

Used in

Some instruments using part 6CL6

Instrument Manufacturer Class Model Description Introduced
132 Tektronix Power supply 132 Module power supply 1961
310 Tektronix Oscilloscope 310A 4 MHz oscilloscope 1955
310A Tektronix Oscilloscope 310A 4 MHz oscilloscope 1959
316 Tektronix Oscilloscope 316 10 MHz 3" tube scope 1959
317 Tektronix Oscilloscope 317 10 MHz 3" tube scope 1959
3A74 Tektronix Plug-in 3A74 2 MHz four channel vertical amp plug-in 1962
515 Tektronix Oscilloscope 515 15 MHz Tube scope 1955
524 Tektronix Oscilloscope 524AD TV waveform monitoring scope 1953
525 Tektronix Oscilloscope 525 TV waveform monitor 1955
531 Tektronix Oscilloscope 531 10 MHz oscilloscope 1954
535 Tektronix Oscilloscope 535 10 (15) MHz dual-timebase scope 1954
545 Tektronix Oscilloscope 545 30 (33) MHz oscilloscope 1955
545A Tektronix Oscilloscope 545A 30 (33) MHz oscilloscope 1959
545B Tektronix Oscilloscope 545B 30 (33) MHz oscilloscope 1964
549 Tektronix Oscilloscope 549 30 MHz storage oscilloscope 1965
570 Tektronix Curve Tracer 570 Curve tracer for tubes 1955
581 Tektronix Oscilloscope 581 100 (95) MHz oscilloscope 1959
581A Tektronix Oscilloscope 581A 85 MHz oscilloscope 1963
585 Tektronix Oscilloscope 585 100 (95) MHz oscilloscope 1959
585A Tektronix Oscilloscope 585 85 MHz oscilloscope 1963