6SN7 TUBE - NOS, VARIOUS USA BRANDS, SOME ORIGINAL BOX, SOME WHITE BOX. 6SN7 TUBE - NOS, VARIOUS USA BRANDS, SOME ORIGINAL BOX, SOME WHITE BOX. 6sn7$34.95 Triode, USA Customer Service M-F 9AM-4PM CT 1-800-774-3201 Email us Anytime: questions@triodestore.com