1x TV7D/U RTest Gm&mA 1959 NEC 12AD7 Matched Plates 1.83% Low-Noise 12AX7 Tube
USD 39.95 USD
Specifications
| Brand | NEC |
| Type | 12AD7 |
| Model | 1959 inked NEC 12AD7 |
| Country Of Origin | Japan |
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 .