For your consideration is this incredibly rare 1950s Western Electric 618C Audio Input Transformer. By far the best phono step up transformer ever produced, this 100% all original gray 618C remains in perfect working condition. Original cloth wire leads appear to be fully intact and never soldered. Fully tested, extremely healthy measurements, within WE spec per their data sheet. 618C #3. (This transformer is perfectly matched with another 618C I have listed, denoted as 618C #2 within the description.)-

- R R-W = 216.48 (219 = WE approx.)

- R Bl = 1047.5 (1034 = WE approx.)

- Bl-W Gr-W = 3562.2 (3634 = WE approx.)