Matched Pairs - Like New Mid-1960s BRIMAR CV4003 Military Grade 12AU7 Long Plate tube. STC Production. Lightly used. Made in England. Real fine 12AU7 tubes, one of our favorites. Repacked in white boxes from bulk.

NOTE: Labels are not perfect on all tubes. Printing from that era is fragile and comes off easily with contact.

Tested and matched on Hickok 752, just recently calibrated and modified by Hickok expert to all Solid State to eliminate drift.

Price = $60 for the Matched Pair.

• Matched Pairs - Like New Mid-1960s BRIMAR CV4003 Military Grade 12AU7 Long Plate tubes STC Production. Lightly used. Made in England. Real fine 12AU7 tubes, one of our favorites.