Pair of 12AX7 ECC83 Long Plate Square Getter 1955 Brimar UK Valve Tubes FREEPOST
A pair of Brimar 12AX7 (ECC83) valves both with date codes for 1955 (4D5/573 and 3F5/573). These have been tested and give the following strong readings A nice strong early pair with black long plates and square getters.