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6DJ8 - TekWiki

6DJ8 Vacuum Tube

The 6DJ8  (European: ECC88) (Russian: 6Н23П) (P/N 154-0187-00,154-0305-00) is a dual triode vacuum tube with a B9A (Noval) miniature 9-pin base.

With 15 mA of plate current, 90 V plate-to-cathode voltage, and −1.3 V grid-to-cathode, the 6DJ8 provides 12.5 mS of transconductance with a plate resistance of about 2.5 kΩ.

The 6DJ8 and its variants are used extensively in many Tektronix instruments of the tube era.

Variants are:

Part No. Type Heater Notes radiomuseum.org data links
US European Russian
154-0187-00
154-0305-00		 6DJ8 ECC88 (6Н23П) 6.3 V, 365 mA 6DJ8 / ECC88 / 6Н23П
154-0413-00 7DJ8 PCC88 7 V, 300 mA 7DJ8 / PCC88
12DJ8 12.6 V, 180 mA 12DJ8
154-0195-00
154-0371-00		 6922 E88CC 6.3 V, 300 mA high-rel 6922 / E88CC
154-0413-00
157-0116-00		 8416 12.6 V, 180 mA high-rel 8416

Aged/Checked/Matched Pair Details
Used in Tek Part# S/N Range
1121 (V424) 157-0060-00 All
519 (V184,V194) 157-0060-00 All
503 (V334,V434) 157-0066-00 ≤6977
63, 2A63 (V334,V434) 157-0066-00 ≤7659
3A8 157-0116-00 (8416) All
2A63 157-0120-00 ≥7660
547 (V24, V224) 157-0122-00 6240-7979
544, 546, 556
547 (V24, V224)		 157-0125-00 N/A
≥7980

Reference:

Tube aging procedure / Selection and checking procedure

As of 2023, 6DJ8 tubes are still manufactured and used, and new old stock (NOS) 6DJ8s can also be obtained easily. However, the 6DJ8 is sought after by some in the tube audio community, leading to exaggerated prices and occasional cannibalism of classic Tek gear.

Links

Data sheet

  • 6DJ8 Datasheet

    6DJ8 Datasheet

Used in

Some instruments using part 6DJ8

Instrument Manufacturer Class Model Description Introduced
067-506 Tektronix Signal generator 067-506 Constant-amplitude signal generator (?)
111 Tektronix Pulse generator 111 Pretrigger Pulse Generator 1960
1121 Tektronix Amplifier 1121 5 Hz − 17 MHz amplifier 1960
132 Tektronix Power supply 132 Module power supply 1961
161 Tektronix Plug-in 161 Pulse Generator Module 1952
1A4 Tektronix Plug-in 1A4 50 MHz quad input amplifier plugin 1967
1S1 Tektronix Plug-in 1S1 1 GHz sampling system 1965
2A60 Tektronix Plug-in 2A60 1 MHz amplifier plug-in 1962
2A63 Tektronix Plug-in 2A63 300 kHz differential amplifier plug-in 1962
2B67 Tektronix Plug-in 2B67 Time base plug-in 1962
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
3A1 Tektronix Plug-in 3A1 10 MHz dual-trace amplifier plug-in 1962
3A1S Tektronix Plug-in 3A1S 25 MHz vertical sampling amplifier plug-in 1961
3A2 Tektronix Plug-in 3A2 500 kHz dual-trace amplifier plug-in 1964
3A3 Tektronix Plug-in 3A3 dual differential amplifier plug-in 1964
3A6 Tektronix Plug-in 3A6 10 MHz dual-trace plug-in 1966
3A7 Tektronix Plug-in 3A7 Differential amplifier plug-in 1965
3A72 Tektronix Plug-in 3A72 Dual channel amplifier plug-in 1961
3A75 Tektronix Plug-in 3A75 4 MHz amplifier plugin 1964
3B1 Tektronix Plug-in 3B1 10 MHz time base plug-in 1962
3B1S Tektronix Plug-in 3B1S Sampling time base plug-in 1961
3B2 Tektronix Plug-in 3B2 Delaying timebase plug-in 1963
3B3 Tektronix Plug-in 3B3 Time Base plug-in 1962
3B4 Tektronix Plug-in 3B4 Timebase plug-in 1964
3S76 Tektronix Plug-in 3S76 Dual Channel Sampling plug-in 1962
3T77 Tektronix Plug-in 3T77 Sampling sweep plug-in 1962
3T77A Tektronix Plug-in 3T77A Sampling sweep plug-in 1966
4S2 Tektronix Plug-in 4S2 Dual channel sampling plugin 1962
502 Tektronix Oscilloscope 502 1 MHz dual beam differential scope 1958
502A Tektronix Oscilloscope 502A 1 MHz dual beam differential scope 1963
503 Tektronix Oscilloscope 503 450 kHz differential-input scope 1960
504 Tektronix Oscilloscope 504 450 kHz scope 1960
506 Tektronix Oscilloscope 506 20 MHz scope 1964
51 Tektronix Plug-in 51 Sweep plug-in 1961
515 Tektronix Oscilloscope 515 15 MHz Tube scope 1955
516 Tektronix Oscilloscope 516 15 MHz dual-trace scope 1960
519 Tektronix Oscilloscope 519 1 GHz tube scope 1961
526 Tektronix Audio/Video 526 NTSC Vectorscope 1959
529 Tektronix Audio/Video 529 TV Waveform Monitor 1965
533 Tektronix Oscilloscope 533 15 MHz oscilloscope 1958
535 Tektronix Oscilloscope 535 10 (15) MHz dual-timebase scope 1954
536 Tektronix Oscilloscope 536 11 MHz X–Y oscilloscope 1957
543 Tektronix Oscilloscope 543 30 MHz oscilloscope 1958
544 Tektronix Oscilloscope 544 50 MHz oscilloscope 1964
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
546 Tektronix Oscilloscope 546 50 MHz oscilloscope 1964
547 Tektronix Oscilloscope 547 50 MHz oscilloscope 1964
549 Tektronix Oscilloscope 549 30 MHz storage oscilloscope 1965
555 Tektronix Oscilloscope 555 Dual beam 30 MHz scope 1959
556 Tektronix Oscilloscope 556 50 MHz dual beam scope 1966
561A Tektronix Oscilloscope 561A 10(4) MHz "General Purpose Scope" 1962
564 Tektronix Oscilloscope 564 Split-screen storage scope 1962
565 Tektronix Oscilloscope 565 10 MHz dual-beam scope 1962
567 Tektronix Oscilloscope 567 Sampling scope 1962
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
60 Tektronix Plug-in 60 1 MHz amplifier Plug-in 1961
63 Tektronix Plug-in 63 300 kHz differential amplifier plug-in 1961
661 Tektronix Oscilloscope 661 Sampling scope 1961
67 Tektronix Plug-in Type 67 Timebase plug-in 1961
75 Tektronix Plug-in 75 4 MHz amplifier plug-in 1961
80 Tektronix Plug-in 80 vertical amplifier 1959
81 Tektronix Plug-in Type 81 plug-in adapter 1960
82 Tektronix Plug-in 82 85 MHz dual-trace amplifier 1962
86 Tektronix Plug-in 86 vertical amplifier 1963
9A1 Tektronix Plug-in Type 9A1 24 MHz dual trace amplifier plug-in 1964
9A2 Tektronix Plug-in Type 9A2 23 MHz amplifier plug-in 1964
B Tektronix Plug-in Type B 20 MHz amplifier plug-in 1954
O Tektronix Plug-in Type O Dual opamp plugin 1962
S-311 Tektronix Plug-in S-311 Programmable dual-trace sampling plug-in 1965
Telequipment D52 Telequipment Oscilloscope D52 6 MHz dual-beam scope 1968
Telequipment D56 Telequipment Oscilloscope D56 15 MHz 2-ch scope (?)
Telequipment S51 Telequipment Oscilloscope S51 3 MHz tube scope (?)
Telequipment S52 Telequipment Oscilloscope S52 3 MHz dual-channel scope 1968
Telequipment TD51 Telequipment Plug-in TD51 Timebase plug-in (?)
Telequipment Type A Telequipment Plug-in Type A Telequipment Tube Oscilloscope Plugin Type A (?)
TU-4 Tektronix Plug-in TU-4 560 Series test load plug-in 1961
W Tektronix Plug-in Type W 8-23 MHz differential comparator 1965
Z Tektronix Plug-in Type Z Comparator preamp plug-in 1960

Pictures

  • 585 Delay Line Driver Distributed Amplifier in Operation − Seven 6DJ8 Differential Stages

    585 Delay Line Driver Distributed Amplifier in Operation − Seven 6DJ8 Differential Stages

  • 6DJ8 Bugle Boy from a 535

    6DJ8 Bugle Boy from a 535

  • Amperex 6DJ8s

    Amperex 6DJ8s