1x TV7D/U RTest Gm&mA 1959 NEC 12AD7 Matched Plates 1.83% Low-Noise 12AX7 Tube

1x TV7D/U RTest Gm&mA 1959 NEC 12AD7 Matched Plates 1.83% Low-Noise 12AX7 Tube

USD 39.95 USD
SKU: R1mI29GA
Brand: NEC
GTIN: Does not apply
Condition: Used
Categories: Vintage Electronics

Specifications

BrandNEC
Type12AD7
Model1959 inked NEC 12AD7
Country Of OriginJapan

Minimum Good consider replace when tested on a TV7 is 32/32 = 800 uMhos. Ink Dated '59', 1959 NEC JAPAN 12AD7 - 2x Thick Spiked Mica Wafer/Spacers. - Re-Tested against the 12AD7 Engineering Data Sheet Release Specs for Gm & mA .

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