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Brimar ECC88 6DJ8 6922 E88CC Preamp Tubes Matched Pair - Foreign BVA 1960s - NOS
Brimar ECC88 6DJ8 6922 E88CC Preamp Tubes Matched Pair - Foreign BVA 1960s - NOS
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Perfect matched pair of vintage Brimar 6DJ8(ECC88) audio tubes - Made in Gt. Britain - 1960s - Very Rare
Tube Summary
No other tubes can deliver vocals like the Blackburn Mullard tubes, from ECC88 to E88CC to E188CC every variant of these can make your audio system sing like an angel, and that's a fact. These ECC88's are extremely hard to find today and surely are becoming everyone's darling.
Sound Characteristics
The overall tonality of Mullard ECC88 tubes is warm and lively with a very spacious sound stage. "Like a warm British jacket of the finest tweed, these glorious tubes have an attractive sweet warmth in their midrange and lower regions." This is how the experts on audiotubes.com describe the sound signature of British-made Mullard tubes. The top end is silky and pleasant and doesn't get rolled off. They retain a fine sense of "air" at the top, and the upper midrange is smooth and liquid. These tubes reproduce the human voice, especially female voices, with haunting realism. The Mitcham Mullard tubes are also known to have an attractive sparkle at the top with rich bass...now we know where that "warm British jacket" comes from!
Professional Tube Testing
Both tubes tested Strong NOS (110%+ nominal mutual conductance) on a Mercury 2000 tube tester with the following result (mutual conductance both in uMhos and in percentage of nominal):
Tube 1: 13,500/14,000(109%/112%)
Tube 2: 13,800/14,200(110%/114%)
Good tubes start at 7000 and new tubes (incl. NOS/NIB) 12,500 - 13,000, and the Mercury 2000's rated mutual conductance (nominal) for new tubes is 12,500. Test result can also be seen in the pictures. In case you wonder what all these numbers mean to your sound experience, it's actually quite straightforward: mutual conductance directly translates to a tube's ability to amplify sound, so the higher the numbers the stronger.
Appearance & cosmetic condition
Although the date codes are fainted on both tubes, the near pristine cosmetic condition on this pair is indeed hard to find among vintage tubes: at least 90% of the paint and lettering are well preserved.
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