Pair of Amperex Heerlen, Holland Early 1960's.
ECC83/12AX7, labeled for The Fisher.
Test 1400/1600 & 1400/1700 where min good is 875 on Hickok 539C.
We specialize in audio tubes.
All tubes are guaranteed.
Please see our other items for more vintage tubes & audio.
We combine orders for shipping.
Thank You.