This is the Stereophile Class B rated Silvercore One to Ten moving coil transformer. It is in excellent condition and sounds terrific. I've sold my low output cartridges so I no longer need this excellent sounding transformer.
A review from Stereophile magazine:
The Silvercore One to Ten contains a pair of toroidal transfomers, wound from copper wire on proprietary amorphous cores, with a primary-coil impedance of 100 ohms. The One to Ten sounded "forceful and dramatic, yet colorful and sweet" with excellent dynamci nuances and a rich, lovely overall tone.
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