AUDIO VALVES: ECC88 6DJ8 & E88CC CV2492 CV2493 CCa 6922 7308 PCC88 7DJ8 GOLD PINNED TWIN TRIODES

The ECC88, 6DJ8, CV 2492 are high performance valves that have passed rigorous military specification tests regarding ruggedness, heat and shock resistence, and heater longevity. Like their civilian/industrial counterparts, they have the four moulded seams on the top, heavily plated gold pins, a halo top getter with a sputter shield below (with slight raised indentations at the 3 and 9 o'clock positions on the shield) which give rigidity and lower microphonics.

There is also the 7V 300mA heater version of the ECC88, designed for RF usage, the PCC88 or 7DJ8.

Mullard describe the E88CC as being for use in cascode circuits and as a multivibrator and cathode follower in computers. The special quality in this case referred to its long service life and not, as normal, to its being a ruggedised version. The ECC88 and the special quality gold pinned variants find use in many pre amplifiers and a surprising range of exotica use them:-

Acoustic Plan Vadi (CD-player)

Aesthetix Io phono stage

Akai reel to reel tape recorder

ARC LS-15 linestage

ARC PH-5 phono

Audible Illusions preamp

Audio Note

Audio Research VT200 amplifier

Audio Technica 4969 mic

Audion Black Shadows 2011

Avalon Compressor

BAT VK-30

Blacknote CDP 500

Blue Circle BC21.1

CAT SL-1

CAT SL-1 Signature Mark III preamp

CJ LP66S

Conrad Johnson 17LSII preamp

Conrad Johnson CT6 preamp

Conrad Johnson GAT

Convergent Ultimate mk1 2004

Counterpoint Magnum Opus 1 preamp

Decco Integrated amp

DODD Audio linestage preamp

Eastern Electric Minimax CD player

Einstein The Absolute Tune Integrated Amplifier

Graaf GM20 mono amps

Grommes PHI-26

Herron 3A

Herron VTSP-2 preamp

Kora Hermes II Tube DAC

Lamm hybrid amp

LAMM LL2

Lawson L251 microphone

Lector Phono-Amp System Mk II

Manley Steelhead phono

Music Hall 25.2

Music Hall 25.3

Opera Consonance Reference 5.5

Pathos Integrated amp

Peachtree NOVA

Raysonic CD

Rode K2 and NTK1 mics

Sonic Frontiers Line 2 SE

Supratek Cortese preamp

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6922, CVC ECC88, RFT MANUFACTURE

CV2492, MIL SPEC E88CC, MULLARD, GOLD PIN , WHITE PRINT, MITCHAM MARCH 1963 MANUFACTURE, E88CC

CV2492, MIL SPEC E88CC, MULLARD, GOLD PIN , WHITE PRINT, MITCHAM MAY 1967 MANUFACTURE, E88CC

CV5358, MULLARD, MIL SPEC ECC88, 6DJ8, , WHITE PRINT, BLACKBURN FEBRUARY 1968 MANUFACTURE, 6A2 B8B4

CV5358, MULLARD, MIL SPEC ECC88, 6DJ8, , WHITE PRINT, HERLEEN 1972 MANUFACTURE A2G4

E88CC, VALVO BADGED, PHILIPS MINIWATT, , HEERLEN FEBRUARY 1968 PRODUCTION

E88CC, VALVO BADGED, PHILIPS MINIWATT, WHITE PRINT FACTORY CODE, 7L9 A8B4 , HEERLEN FEBRUARY 1968 PRODUCTION

E88CC,BRIMAR, 6DJ8, GOLD PIN , WHITE PRINT, OCTOBER 1960 MANUFACTURE,

EC86, TELEFUNKEN, 6CM4, NOS

EC88, SIEMENS, 6DL4, NOS

EC88, TELEFUNKEN, 6DL4, NOS

EC88, VALVO, 6DL4, NOS

ECC88, BRIMAR, 6DJ8, WHITE PRINT

ECC88, HEWLETT PACKARD BADGED AMPEREX, FAINT WHITE PRINT, FACTORY CODE, GA7 A2F3 HEERLEN 1962 PRODUCTION

ECC88, HEWLETT PACKARD BADGED AMPEREX, WHITE PRINT, JULY 1961 DATE CODE

ECC88, MULLARD, 6DJ8, , WHITE PRINT, BLACKBURN 1959 MANUFACTURE, B9C5

ECC88, MULLARD, 6DJ8, , WHITE PRINT, BLACKBURN 1961 MANUFACTURE, B1I2

ECC88, MULLARD, 6DJ8, , WHITE PRINT, HERLEEN 1959 MANUFACTURE

ECC88, RFT, WHITE GENERIC PRINT, IK DATE CODE

PCC189, ULTRON, NIB, 7ES8, POTENTIAL ECC88 SUBSTITUTE

PCC88, MULLARD, 7DJ8, NEW BOXED, PLAIN WHITE PRINT, Dj1 B1G, BLACKBURN 1961 MANUFACTURE,

PCC88, TUNGSRAM, 7DJ8, NEW BOXED, PLAIN WHITE PRINT, 1960S MANUFACTURE,