12AT7/ECC81 Tesla/JJ (Slovakia) New item from JJ-Tesla. 12at7ecc816201 12AT7/ECC81-EH ElectroHarmonix (Russia) tube 12at7eh 12AT7 NOS TUBE VARIOUS BRANDS 12AT7 NOS TUBE, "New Old Stock" VARIOUS BRANDS NOS12AT7$29.95 12AT7/ECC81 JJ-Tesla Tube 12at7jj$29.95 Triode, USA Customer Service M-F 9AM-4PM CT 1-800-774-3201 Email us Anytime: questions@triodestore.com