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Brimar CV1988 = 6SN7GT Black Glass Lower Declined Getter - British BVA '59 - NOS

Brimar CV1988 = 6SN7GT Black Glass Lower Declined Getter - British BVA '59 - NOS

Regular price $378.75 USD
Regular price Sale price $378.75 USD
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Soundlumia's Opinion

Made in Gt. Britain, the Brimar 6SN7GT tubes are very similar to Mullard 6SN7GT 's, both in build and in sound characteristics, but they come in at a much more affordable price while delivering almost the same performance as the Mullard tubes. 

The overall tonality of British-made Brimar 6SN7GT 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 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. They 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

This set was tested and certified by RoeTest V11 Professional Tube Testing System with the following result: 

Tube 1:

Measured transconductance(GM): 2.51/2.75 mA/V  - 97%/106% (100% = 2.60 mA/V)
Measured plate current(IA): 5.245/7.667 mA  - 58%/85% (100% = 9 mA)

NO shorts, leakage or gas. NO noise or microphonics.

Curve trace is also included in the original RoeTest report.

Appearance & cosmetic condition

We treasure this pair also because of the pristine condition of both tubes - over 90% of the paint and lettering are well retained. The Brimar date codes painted glass are also visible on both tubes:

1J9/3B3 (1 = Week #1 of production month, J = October, 9 = 1959, 3B3 = pre-1960 code for CV1988)


NEW white tube box.
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