Jerry - I noted that no one answered your query from April. D-subminiature connectors were introduced by Cannon in 1952. https://en.m.wikipedia.org/wiki/D-subminiature That "sliding lock" (or latch) method for attachment was common with AUI connections (15-pin size) for the original Ethernet (10-Base-5) in late 1970s and 1980s. SPEC DETAILS matter here, you require 9-pin (DE-9 style). Pull up the Data sheet for the mfg. you select (FCT, Harting, NorComp), to assure you purchase all necessary pieces required. Mouser Electronics carries these parts. http://www.mouser.com/Connectors/D-Sub-Connectors/D-Sub-Tools-Hardware/_/N-9gyd6?P=1z0yhcsZ1yz0n4z Digi-Key also carries these "locking" parts https://www.digikey.com/products/en?mpart=09670009914&v=1195 Example drawing (Harting) https://b2b.harting.com/files/download/PRD/PDF_TS/09670009914_BL01_R29760_100198914DRW002A.pdf good luck .... I assembled / repaired far too many of these 35 years ago. greg w9gb -- Hello, I’ve been using regular D-subminiature shells (DE-9 size) to hold the power connector onto the REF0 and REF1 and they come loose when I mess with the units. I’ve been looking all over today and can’t find the specific shell type that I need to use to clamp onto the D-sub connector. The REF0 and REF1 have small round discs that probably use a shell that is more of a clamp opposed to a screw-down type. Where can I find the proper D-sub shells? Thanks, Jerry Sent from iPad Air

FCT Electronics catalog pages. http://www.mouser.com/ds/2/276/Zubehoer_DSub_Steckverbinder-472747.pdf NOTE: European mfg. (like FCT) sell both 4-40 (English) and M3 (metric hardware). Purchase correct size. In addition to Sliding latch, you will also find plastic and metal dust caps. That may be of interest for other Lucent RFTG-u owners. CAUTION: D-subminiature latches should only be used in permanent or non-mobile equipment. WHY? I watched computer equipment (tens of thousands of $$) -- dropped to floor -- by the pulling of cable (wiring tech -- reassigned after incident). gb Sent from iPad Air > On Jun 10, 2017, at 4:32 PM, Gregory Beat <w9gb@icloud.com> wrote: > > Jerry - > > I noted that no one answered your query from April. > D-subminiature connectors were introduced by Cannon in 1952. > https://en.m.wikipedia.org/wiki/D-subminiature > > That "sliding lock" (or latch) method for attachment was common with AUI connections (15-pin size) for the original Ethernet (10-Base-5) in late 1970s and 1980s. > > SPEC DETAILS matter here, you require 9-pin (DE-9 style). > Pull up the Data sheet for the mfg. you select (FCT, Harting, NorComp), > to assure you purchase all necessary pieces required. > > Mouser Electronics carries these parts. > http://www.mouser.com/Connectors/D-Sub-Connectors/D-Sub-Tools-Hardware/_/N-9gyd6?P=1z0yhcsZ1yz0n4z > > Digi-Key also carries these "locking" parts > https://www.digikey.com/products/en?mpart=09670009914&v=1195 > Example drawing (Harting) > https://b2b.harting.com/files/download/PRD/PDF_TS/09670009914_BL01_R29760_100198914DRW002A.pdf > > good luck .... I assembled / repaired far too many of these 35 years ago. > > greg > w9gb > > > > -- > Hello, I’ve been using regular D-subminiature shells (DE-9 size) to hold the power connector onto the REF0 and REF1 and they come loose when I mess with the units. I’ve been looking all over today and can’t find the specific shell type that I need to use to clamp onto the D-sub connector. > The REF0 and REF1 have small round discs that probably use a shell that is more of a clamp opposed to a screw-down type. Where can I find the proper D-sub shells? > > Thanks, Jerry > > > Sent from iPad Air