Mullard

Mullard CV491 Long Plates Square Getter

$1,862.00

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Tube Care & Handling

Vintage tubes should be handled with care. Always power equipment off and allow tubes to cool before installing or removing them. When possible, handle tubes by the base rather than pulling on the glass, and avoid bending or unnecessarily cleaning the pins.

Store unused tubes in a dry, protected location. Cosmetic variations, label wear, and other age-related characteristics are normal with authentic vintage stock and are documented in the product listing where relevant.

Description

Soundlumia's Opinion

No other tubes can deliver vocals like the British-made Mullard's, and that's a fact. These ECC82 tubes, especially the vintage 1950s ones, are extremely hard to find today and are becoming every serious audiophile's darling.

The overall tonality of Mullard ECC82 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 British made 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!

Single Tube ( Blackburn 1955 - Strong )

1x Mullard CV491 Long Plates Square Getter - Blackburn 1955 - Strong

$423.80

Matched Quad (Blackburn 1955 K61 - Near NOS)

Mullard CV491 Long Plates Square Getter Matched Quad Blackburn '55 K61 Near NOS

$1,862.00

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): 2.14/2.05 mA/V - 97%/93% (100% = 2.2 mA/V)

Measured plate current(IA): 14.237/10.382 mA - 136%/99% (100% = 10.5 mA)

Tube 2:

Measured transconductance(GM): 2.19/2.15 mA/V - 100%/98% (100% = 2.2 mA/V)

Measured plate current(IA): 11.575/11.32 mA - 110%/108% (100% = 10.5 mA)

Tube 3:

Measured transconductance(GM): 2.07/2.04 mA/V - 94%/93% (100% = 2.2 mA/V)

Measured plate current(IA): 11.282/10.975 mA - 107%/105% (100% = 10.5 mA)

Tube 4:

Measured transconductance(GM): 2.06/2.01 mA/V - 94%/91% (100% = 2.2 mA/V)

Measured plate current(IA): 10.39/11.035 mA - 99%/105% (100% = 10.5 mA)

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

Curve trace is also included in the original RoeTest report.

Appearance & cosmetic condition

Silkscreen: 98% - 100%

Date code(s):

K61 B5K (K61 = ECC82 Long Plates production gen #1, B = Blackburn, 5 = 1955, K = Nov.)

KB/DA ( KB = manufacture under UK Authority, DA = Blackburn )

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Mullard CV491 Long Plates Square Getter

Delivery and Shipping

Tube Care & Handling