New Cinemag CM-2511 Input Transformer for DIY LA-3A, With Mounting Screws. C1

New Cinemag CM-2511 Input Transformer for DIY LA-3A, With Mounting Screws. Electrically, this is identical to the transformer that UA uses in their reissue LA-3A, but it mounts with 2 small #4 sheet metal screws, for installation on PC boards. We're also including a 90 degree mounting bracket, in case you need that for installing the transformer.

This is a bridging input transformer with dual primary windings and a single secondary winding.  In the LA-3A circuit the two primary windings are wired in series and the transformer has 12 db of gain when properly loaded. For other applications the two primary windings can be wired in parallel, giving 18 db of gain at the secondary.