Hammond PWDP13090 290 VCT Power Transformer for Collins 75S-3B/C

The PWDP13090 is a Peter W. Dahl main power transformer (T-8) for the Collins 75S-3B and 75S-3C receivers, listed against Collins P/N 662-0250-010. It is intended for Collins S-Line owners and restorers replacing the receiver's power transformer.

It supplies two secondaries: S1 at 290 VCT @ 125MA CCS and S2 at 6.3 VAC @ 5.5A CCS. The primary accepts 115/230 VAC at 60 Hz, single phase.

The transformer is built on an EI-112 X 1.5 core in Style 5 and weighs approximately 4 lbs.

The part is listed as RoHS compliant and REACH compliant, with UNSPSC 39121301 and UPC 623980186344. Shipping weight is 4 lbs (1.81 kg).

The PWDP13090 is listed in the PWDAHL Series of transformers and chokes taken directly from the Peter W. Dahl files, a range described as magnetics for amateur radio products. These transformers are usually built to order one at a time, and because many of the designs are decades old it is always best to confirm availability by phone or e-mail before planning a repair around it. Units that have already been built are shown with Hammond part numbers, as this one is, and stock units can usually be shipped the next business day.