Description

Offered are (7) National Union type 27 Coke-Bottle Audio Triode Tubes. The tubes are clean and in good condition. Each tests good on the EICO dynamic tester and they show no shorts or inter-element leakage. (4) of these tubes have black plates and (3) have silver mesh plates. Each has a side getter with all good silver flashing. These tubes have hot-stamped base graphics. Production codes on the bases are as follows: V, J, R, H, V, V and H. All bases are firmly attached. Clean pins with minimal tarnish. Used in RF and Audio circuitry. Pick up the early audio tubes for your own radio, amp or for a DIY audio project. Mouse over images to enlarge. NO RESERVE!! Thanks for looking.