Hammond PWDI13161 Collins 75A Series L29 3 Henry Filter Choke

PWDI13161 is filter choke #1, position L29, for the Collins 75A-1, 75A-2, 75A-3 and 75A-4 receivers, cross-referenced to Collins P/N 668-0020-00. It comes from the Peter W. Dahl files that make up Hammond's PWDAHL Series of magnetics for amateur radio products and is intended for restorers of these receivers.

This choke is rated 3 henry at 120 mA DC with a 600V working voltage. The second filter choke in the same receivers, #2 at L30, is listed separately as PWDI13158 with a 5 henry, 80 mA rating.

PWDI13161 uses an EI core and is listed as Style 3 on the series style sheet. The approximate weight is 2 lbs and the shipping weight is 2 lbs (0.91 kg). It is REACH compliant and RoHS compliant.

Hammond explains that PWDAHL units are usually built to order one at a time and recommends confirming availability by phone or e-mail. Identifiers are UPC 623980474809 and UNSPSC 39121301.

Before ordering, confirm the chassis position: L29 takes this 3 henry, 120 mA choke, while L30 takes the 5 henry, 80 mA PWDI13158. Quoting Collins P/N 668-0020-00 with the Hammond part number helps ensure the correct choke is supplied for the 75A receiver being restored.