Pair of Sescom MI-13 input/interstage transformers

Pair of Sescom MI-13 transformers, from their higher quality "MI" line. Very good condition. Dual primaries and secondaries can be wired series or parallel which makes them very versatile.

Primary Impedance 3.75K or 15K Ohms

Secondary Impedance 15K or 60K Ohms

They can be wired

1:1 (15K:15K),

1:2 (3.75K:15K or 15K:60K),

1:4 (3.75K:60K) or reversed in any of those same combinations if a step-down is needed. Use to balance line inputs, as interstage transformers in a tube circuit, and may also work as inputs for line-level tube circuits, like feeding dual grids in varimu compressors, as impedances are similar to UTC A18.

Light blue one is slightly loose inside can, does not affect performance, all windings read ok.