This listing is for a single Northlake Engineering Inc M124-101 / MTE B-3160. These were manufactured as a direct replacement for the Triad HS-56 in Magna-tech film audio preamplifiers. All have been tested and are functional. You will receive 1 of the 4 pictured when you order.

They have 4 windings

Primary

Winding 1:

Red & Brown - 34.5R

Winding 2:

Orange & Yellow - 33.9R

Secondary

Winding 3/4:

Green & Blue/Violet - 34.1R

Blue/Violet & Grey - 34.1R

White - Shield/Case

Basically you have a split primary and a center tapped secondary (or vice-versa) with all windings equal.

This Triad HS-56 transformer was manufactured by Northlake Eng Inc for use in vintage electronics such as Pultec and Spectra Sonics equipment. It is a high-quality replacement unit that is designed to meet the original specifications of the equipment it is used in. It does have one less winding than the HS-56V.