Hammond PWDI13036 Johnson Viking 500 L303 25-5 HY HV Choke

PWDI13036 is a high-voltage choke for the Johnson Viking 500, position L303, cross-referenced to EFJ P/N 22.1265. It is a Peter W. Dahl design in Hammond's PWDAHL Series of magnetics for amateur radio products and is intended for owners and restorers of the Viking 500.

The choke's inductance is specified from 25 HY @ 80 mA to 5 HY @ 0.5A, with a 2200 VDC rating. This range reflects how inductance falls as DC current rises through the original L303 position.

PWDI13036 is wound on an EI-175 x 2" 29GAM6X core and listed as Style 5 on the series style sheet. The approximate weight is 14 lbs and the shipping weight is 14 lbs (6.35 kg). It is REACH compliant and RoHS compliant.

Hammond notes that these designs are usually built to order one at a time and advises confirming availability by phone or e-mail. The part is catalogued under UPC 623980240220 and UNSPSC 39121301.

The Viking 500 also uses a lower-voltage L302 choke, listed in this series as PWDI13131, so restorers servicing the full supply can source both positions from the same Peter W. Dahl design files. Quote EFJ P/N 22.1265 when confirming this part.