[Repeater-Builder] Motorola T1504A Duplexer Lock Nut
Hi, Does any one in the groups have on of these in their junk box that they don't need? I took my duplexer to get tuned only to realize that some genius thought that duct tape was a suitable replacement for a proper lock nut on one of the cans. he did the tuneup on the duplexer as best he could. after i locate a nut i would love it if their are any local hams with the capability to give it that final tweak as i am sure that one can is out of spec. thanks, robert kc8gpd
Re: [Repeater-Builder] Motorola T1504A Duplexer Lock Nut
At 1/10/2010 06:34, you wrote: Hi, Does any one in the groups have on of these in their junk box that they don't need? I'm missing a couple of those myself for the pass version of those cavities. I would be interested if there's a standard/plentiful source. Bob NO6B
RE: [Repeater-Builder] Motorola T1504A Duplexer Lock Nut
Try here: http://www.mcmaster.com/#hex-locknuts/=5bcw46 Click on Flex-top Expanding Lock Nuts I have some T-1504 type cavities/duplexers, but not here so I can't measure the thread. --- Jeff WN3A -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of n...@no6b.com Sent: Sunday, January 10, 2010 11:04 AM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Motorola T1504A Duplexer Lock Nut At 1/10/2010 06:34, you wrote: Hi, Does any one in the groups have on of these in their junk box that they don't need? I'm missing a couple of those myself for the pass version of those cavities. I would be interested if there's a standard/plentiful source. Bob NO6B
RE: [Repeater-Builder] Motorola T1504A Duplexer Lock Nut
At 1/10/2010 08:28, you wrote: Try here: http://www.mcmaster.com/#hex-locknuts/=5bcw46 Click on Flex-top Expanding Lock Nuts McMaster-Carr - of course! Thanks Jeff. I do have one here with the lock nut: it's a 1/2-20 thread. The best McMaster match to the original (same width height) is 94830A550: $7.47 each. Bob NO6B
RE: [Repeater-Builder] Motorola T1504A Duplexer Lock Nut
Ouch. Maybe a regular nylon lock nut would work acceptably well and be a little cheaper? Isn't the outer sleeve (the one that the lock nut threads onto) slotted? If so, will it tighten up enough to keep the shaft from beint turned if you just use a a regular nut? --- Jeff WN3A -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of n...@no6b.com Sent: Sunday, January 10, 2010 11:45 AM To: Repeater-Builder@yahoogroups.com Subject: RE: [Repeater-Builder] Motorola T1504A Duplexer Lock Nut At 1/10/2010 08:28, you wrote: Try here: http://www.mcmaster.com/#hex-locknuts/=5bcw46 http://www.mcmaster.com/#hex-locknuts/=5bcw46 Click on Flex-top Expanding Lock Nuts McMaster-Carr - of course! Thanks Jeff. I do have one here with the lock nut: it's a 1/2-20 thread. The best McMaster match to the original (same width height) is 94830A550: $7.47 each. Bob NO6B No virus found in this incoming message. Checked by AVG - www.avg.com Version: 8.5.432 / Virus Database: 270.14.129/2605 - Release Date: 01/10/10 07:35:00
RE: [Repeater-Builder] Motorola T1504A Duplexer Lock Nut
At 1/10/2010 08:55, you wrote: Ouch. Maybe a regular nylon lock nut would work acceptably well and be a little cheaper? Isn't the outer sleeve (the one that the lock nut threads onto) slotted? If so, will it tighten up enough to keep the shaft from being turned if you just use a regular nut? The outer 1/2-20 threaded sleeve is slotted, but doesn't appear to be tapered. I don't have one handy to try it, but I think a plain 1/2-20 nut would just thread down the sleeve without compressing it, which creates the locking action. Hard to tell if a nylon lock nut would generate enough pressure to provide an adequate lock of the tuning rod; I think not. Sal's idea of using small hose clamps is starting to look good ;) Bob NO6B
RE: [Repeater-Builder] Motorola T1504A Duplexer Lock Nut
Sal's idea of using small hose clamps is starting to look good ;) Use a regular nut and Locktite :-)
