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1. Moersleutel Mullard Cv4004 / 12Ax7, Matched Pair

2. 2 x Brimar CV4004 (ECC83)- Rare Ex MoD Valves - Fully Tested!

   Tested on the AVO mk3 tester by qualified electrical engineers. Ia = 1.6mA/V, gm = 1.6mA/V.

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3. Matched Pair RFT ECC83 CV4004 NOS Tubes – East Germany – Balanced – Tested TAD

   Matched Pair RFT ECC83 / CV4004 – NOS – Made in East Germany – Tested by TAD. 2x ECC83 (CV4004) RFT / TESLA NOS tubes. Military-grade: CV4004 designation.

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4. CV4004 (6057) (M8137) (VX7059) NOS Valve tube

   Able to provide you with your orders quickly and efficiently. We have 45000 sq ft storage.

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5. RARE STRONG MATCHED PAIR OF MULLARD CV4004 M8137 BOX PLATE KB/QDD NIB 1977

   RARE STRONG MATCHED PAIR OF MULLARD CV4004 M8137 ECC83. ONE BOX MARKED CV4004 AND THE OTHER M8137. SUPERB PERFECTLY MATCHED PAIR. TUBE 1 - Ia 1.65/1.7 gm 1.8/1.8. TUBE 2 - Ia 1.6/1.6 gm 1.8/1.8. TESTED STRONG.

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6. RARE BRIMAR 12AX7 ECC83 CV4004 LONG BLACK PLATE SQUARE GETTER 1954 Tested (K957)

   Tested 1900/2000 umhos gm Long black Plate Square getter Code 4L4/573 1954 -573 = CV4004

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7. 2x Mullard ECC83 Valves Tubes Yellow-print Eq 12AX7 CV492 B339 CV4004 M8137

   2x Mullard ECC83 Valves. Date Code: I61 B4A1, I61 3L2. This valve has also been tested in amplifier without any noise. NOS specification: Ia = 1.2(mA), gm = 1.6(mA/V). Ia2 = 1.23(mA), gm2 = 1.7(mA/V).

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8. Cryo version Match QUAD 4PCS NEW Genalex Gold Lion CV4004 ECC83 Tubes ECC803S

   (Match QUAD NEW Genalex Gold Lion CV4004 ECC83 Tubes. Type : CV4004 ECC83. Match QUAD Genalex 12AX7 / CV4004 / ECC83 (Matched QUAD). tubes) of new vacuum tubes in their. Rectifier 5U4/5Z3/GZ32/6X4. Heat Shrink tubes.

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9. Brimar CV4004 (12AX7/ECC83) Half Box Plate O Getter Tests Good (K690)

   Test 1300/1200 mhos gm

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