1065/780 VAC Power Transformer for Drake L4B

The PWDP13087 is a Peter W. Dahl direct replacement transformer for the Drake L4B-7 and L7 power supplies. It is aimed at Drake amplifier owners and service technicians who need a drop-in high-voltage transformer.

The secondary is rated 1065/780 VAC @ 0.81A CCS. The primary is 120/240 VAC 60 Hz single phase with HI-LO taps, brought out on a 7-terminal primary as listed in the ordering table.

It uses an EI-212 X 3 lamination core in Style 2 and weighs approximately 29 lbs.

The part is listed as RoHS compliant and REACH compliant, with UNSPSC 39121301 and UPC 623980142999. Shipping weight is 29 lbs (13.15 kg).

The PWDP13087 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.