The HP PAECO 9100-0023 (912-47) INTERSTAGE TRANSFORMER PAIR for DIY tube amplifier projects as pictured, they pulled, in good condition (Ohms out tested DCR (1-2) =17 Ohms, (4-5) = 700 Ohms. Note: The US-GREENNOTE is using as relative scaling purpose only. Since this item is highly “MISHANDLING SENSITIVE” it is intending for professional (whom who know it well) and this selling is final (no return or refund) Please buy or bid accordingly. Thanks for looking.