Amperex 12GN7A/12HG7 tubes; NOS; Lot of three (3); Original boxes; Made in USA – St. John's Institute (Hua Ming)
12HG7/12GN7A Sharp Cutoff Pentode Tube. Designed for use in video amplifiers in TV receivers. MFR: Sylvania, CEI. SKU: 12GN7. New old stock. No longer available for export.
12GN7A SYLVANIA Tubes 2099004336
NEW Radio Tube 12HG7/12GN7A RCA ( #7857 | M-Ware
6 valvole per tubi a vuoto 12HG7 12GN7 12GN7A fabbricate negli Stati Uniti, NOS NIB, lotto di sei - Etsy Italia