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Mullard ECC88 6DJ8 BVA Matched Pair - Blackburn 1961 GA1 - Same code - 125% NOS

Mullard ECC88 6DJ8 BVA Matched Pair - Blackburn 1961 GA1 - Same code - 125% NOS

Regular price $187.50 USD
Regular price Sale price $187.50 USD
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Perfect matched pair of vintage Mullard 6DJ8(ECC88) audio tubes - BVA + Shield logo - Made in Blackburn, Gt. Britain - 1957 - Same date code - Extremely 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 they are indeed 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 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. These Mullard tubes are also known to have an attractive sparkle at the top with rich we know where that "warm British jacket" comes from!

Professional Tube Testing

NO shorts or grid leakage. NO noise or microphonics.

Both tubes tested Super Strong NOS (120%+ mutual conductance value for NOS/NEW) on a reliable and recently calibrated Mercury 2000 tube tester with the following result (mutual conductance both in uMhos and in percentage of NOS/NEW):

Tube 1: 15,800/15,500(126%/124%)
Tube 2: 16,200/16,100(130%/129%)

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 tube's ability to amplify sound, so the higher the numbers the stronger. 

Appearance & cosmetic condition

Both tubes are in pristine cosmetic condition with nearly 100% of the silkscreen well preserved. The identical Blackburn date code is perfectly visible: 

GA1 B1D (GA1 = ECC88 production #1, B = Blackburn, 1 = 1961, D = April)


This pair of tubes will be packaged in New Mullard reproduction tube boxes, secured by a handmade paper ribbon (by courtesy of Soundlumia.)

Shipping Policy 

- US Shipping: Flat-rate($5.50) USPS Ground Advantage for ALL states.

- International Shipping: Flat-rate ($20.00) USPS First Class International for ALL countries.

- Orders ship within 24 - 48 hours

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