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Mullard ECC83 12AX7 - Like New Rare 1959-61 Mullard Old Shield and Marconi B339 BVA Logo Halo Getter - Blackburn Rev I61
Like New, lightly used Mullard 1959-61 with Mullard Old Shield and Marconi B339 BVA with Halo Getter. All Tubes from Rev. I61 with (B) Blackburn Plant Etched Date codes.


 
Single Tube = $70.00
Stock Details: Tubes as Shown Available

Quantity in Stock:(Out of Stock)

Product Code: 739
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Description Technical Specs
 
Like New, lightly used Mullard 1959-61 with Mullard Old Shield and Marconi B339 BVA with Halo Getter. All Tubes from Rev. I61 with (B) Blackburn Plant Etched Date codes. Some of the most desirable tubes for both Audio and Guitar use. 1950s Mullard ECC83 tubes tend to test a little lower than the later production and this is normal.

Tested and matched on Top of the Line Calibrated Hickok 580 Lab Grade Tester recently calibrated by late Chris Haedt. 65% = 1000 mmhos for ECC83/12AX7 on this tester.

NOTE: SPECIFY WHICH TUBE YOU WANT in the comments box during checkout process. (Starting from left in the Picture)
Tube 1: Mullard Old Shield Logo 1961 - I61 B1A - 2200-2350 mmhosSOLD

Tube 2: Mullard Old Shield Logo 1959 - I61 B9I - 2200-2350 mmhosSOLD

Tube 3: Mullard Old Shield Logo 1960 - I61 B0J - 2400-2850 mmhosSOLD

Tube 4: Marconi B339 Logo 1961 - I61 B1B - 2050-2000 mmhos

Tube 1, 2 or 4 can be combined to make a Matched Pair.


Price = $70 per tube.

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