|
My source & stock have run out so I'm looking for a source for now and future. My usual Tessco tech site did not come up with them. I’ll try Tally as well. I use them for isolating a rack off the floor so it does not become a "lighting rod".? In the past I’ve just used a plywood plate however, when wet it conducts, of course. I would imagine there's a grounding kit, but all I need are the washers as I have concrete anchors and bolts, etc. An insulating(rubber?) pad would be another item I'd like to locate.
--
-
Regards, Karl Shoemaker
To contact me, please visit SRG's web site at?
for the current email address.
|
,?? click on Insulation and Grounding
toggle quoted message
Show quoted text
On 8/22/2023 7:00 PM, Karl Shoemaker wrote: My source & stock have run out so I'm looking for a source for now and future. My usual Tessco tech site did not come up with them. I’ll try Tally as well. I use them for isolating a rack off the floor so it does not become a "lighting rod".? In the past I’ve just used a plywood plate however, when wet it conducts, of course. I would imagine there's a grounding kit, but all I need are the washers as I have concrete anchors and bolts, etc. An insulating(rubber?) pad would be another item I'd like to locate.
|
Karl? ? ? here in Canada home depot carries?substantial rubber pads., roughly 3x4 feet 73 Jerry VE3EXT
On Tue, 22 Aug 2023 at 19:00, Karl Shoemaker < srg734@...> wrote: My source & stock have run out so I'm looking for a source for now and future. My usual Tessco tech site did not come up with them. I’ll try Tally as well. I use them for isolating a rack off the floor so it does not become a "lighting rod".? In the past I’ve just used a plywood plate however, when wet it conducts, of course. I would imagine there's a grounding kit, but all I need are the washers as I have concrete anchors and bolts, etc. An insulating(rubber?) pad would be another item I'd like to locate.
--
-
Regards, Karl Shoemaker
To contact me, please visit SRG's web site at?
for the current email address.
|
Go to your local Tractor Supply Company or similar farm supply store and look for the mats used in horse stalls.?
Be forewarned, bulky and heavy but could be cut down to size and they are very sturdy.
Jon KD5SFA?
On Tue, Aug 22, 2023, 18:00 Karl Shoemaker < srg734@...> wrote: My source & stock have run out so I'm looking for a source for now and future. My usual Tessco tech site did not come up with them. I’ll try Tally as well. I use them for isolating a rack off the floor so it does not become a "lighting rod".? In the past I’ve just used a plywood plate however, when wet it conducts, of course. I would imagine there's a grounding kit, but all I need are the washers as I have concrete anchors and bolts, etc. An insulating(rubber?) pad would be another item I'd like to locate.
--
-
Regards, Karl Shoemaker
To contact me, please visit SRG's web site at?
for the current email address.
|
WOW ! thanks guys for the input.
Mr. Flynn's link was great and those guys are pretty serious about racks and kits. Tessco tech should take some notes on that one.
Jerry, I did not even think about HD since I shop there a lot Stateside. Maybe I can get a new rubber mud flap for my snowmobile.
The last vender in Spokane was Natawater and is now gone. They had cool rubber products.
Jon, I'll check the Kubota dealer on that.
--
-
Regards, Karl Shoemaker
To contact me, please visit SRG's web site at?
for the current email address.
|
When I need something like this and it needs to be big enough to support something like stationary radio gear (or heavy shop equipment) I get two each rubber mallets -- Home Despot has them for $1.99 each, sometimes less.
Then I take them to the bandsaw and saw the head in half around the shaft, so that I have a total of four rubber feet.? Off to the drill press, where I drill a small hole all the way through for the retaining bolt, and a larger hole part-way through to hold the head of the bolt and a washer.
To get an idea of what this looks like, take a rubber foot off of your SB-220 and upsize it 10x.
Then make Wouff Hongs and Rettysnitches out of the leftover handles. ?
73 Jim N6OTQ
|
I heard back from central steel fab; they want about $7 each with a min. order of 100. Och! $700 ?? I'll use plywood for now and keep searching.
Or maybe a sheet of Plexiglas or kitchen top teflon type material. I think the shoulder washers are part of a kit from Andrew so I'll keep trying to get a contact with them.
These big companies; it's like the little ant working up against a 3" pine beetle.
--
-
Regards, Karl Shoemaker
To contact me, please visit SRG's web site at?
for the current email address.
|
look at rubber compressor mounting pads at Northen tools. Insulated and can support the weight. Only thing you would need to do is keep the bolt away from the sides of the hole.
Stan
On Wednesday, August 23, 2023 at 10:12:08 AM CDT, Jim Strohm <jim.strohm@...> wrote:
When I need something like this and it needs to be big enough to support something like stationary radio gear (or heavy shop equipment) I get two each rubber mallets -- Home Despot has them for $1.99 each, sometimes less.
Then I take them to the bandsaw and saw the head in half around the shaft, so that I have a total of four rubber feet.? Off to the drill press, where I drill a small hole all the way through for the retaining bolt, and a larger hole part-way through to hold the head of the bolt and a washer.
To get an idea of what this looks like, take a rubber foot off of your SB-220 and upsize it 10x.
Then make Wouff Hongs and Rettysnitches out of the leftover handles. ?
73 Jim N6OTQ
|
I use isolation mounts or pads.
amazon
com/Sorbothane-Washers-Vibration-Isolation-Absorbs/dp/B09DYXK8Z1/
You can figure out the rest of the url link.
On 8/23/2023 10:31 AM, STANLEY
STANUKINOS wrote:
toggle quoted message
Show quoted text
look at rubber compressor
mounting pads at Northen tools. Insulated and can support the
weight. Only thing you would need to do is keep the bolt away
from the sides of the hole.
Stan
On Wednesday, August 23, 2023 at 10:12:08 AM CDT, Jim
Strohm <jim.strohm@...> wrote:
When I need something like this and it
needs to be big enough to support something like
stationary radio gear (or heavy shop equipment) I get
two each rubber mallets -- Home Despot has them for
$1.99 each, sometimes less.
Then I take them to the bandsaw and saw the head in
half around the shaft, so that I have a total of four
rubber feet.? Off to the drill press, where I drill a
small hole all the way through for the retaining bolt,
and a larger hole part-way through to hold the head of
the bolt and a washer.
To get an idea of what this looks like, take a
rubber foot off of your SB-220 and upsize it 10x.
Then make Wouff Hongs and Rettysnitches out of the
leftover handles. ?
73
Jim N6OTQ
|
Curious on your isolation methodology for any conductive paths to/from the rack. I’ve seen many attempt to isolate a rack, yet many other paths were available, negating the isolation. ? Matt ?
toggle quoted message
Show quoted text
From: [email protected] <[email protected]> On Behalf Of Karl Shoemaker
Sent: Tuesday, August 22, 2023 6:01 PM
To: [email protected]
Subject: [repeater-builder] insulation shoulder washer ? My source & stock have run out so I'm looking for a source for now and future. My usual Tessco tech site did not come up with them. I’ll try Tally as well. I use them for isolating a rack off the floor so it does not become a "lighting rod".? In the past I’ve just used a plywood plate however, when wet it conducts, of course. I would imagine there's a grounding kit, but all I need are the washers as I have concrete anchors and bolts, etc. An insulating(rubber?) pad would be another item I'd like to locate.
--
-
Regards, Karl Shoemaker
To contact me, please visit SRG's web site at?
for the current email address.
|
Try a bus bar insulator, you can find them in copper grounding kits or here is a random one I found on eBay.
You will need to put a piece of all thread in to the floor to mount them to.
On Tue, Aug 22, 2023, 16:00 Karl Shoemaker < srg734@...> wrote: My source & stock have run out so I'm looking for a source for now and future. My usual Tessco tech site did not come up with them. I’ll try Tally as well. I use them for isolating a rack off the floor so it does not become a "lighting rod".? In the past I’ve just used a plywood plate however, when wet it conducts, of course. I would imagine there's a grounding kit, but all I need are the washers as I have concrete anchors and bolts, etc. An insulating(rubber?) pad would be another item I'd like to locate.
--
-
Regards, Karl Shoemaker
To contact me, please visit SRG's web site at?
for the current email address.
|
For smaller shoulder washers I would suggest Skycraft surplus in Orlando, they have bunches of that sort of thing and perhaps larger. As far as larger insulation instead of rubber or plywood, get Delrin cutting boards from Target and cut whatever you need with a bandsaw.?
toggle quoted message
Show quoted text
On Tue, Aug 22, 2023 at 07:00 PM, Karl Shoemaker wrote:
My source & stock have run out so I'm looking for a source for now and future. My usual Tessco tech site did not come up with them. I’ll try Tally as well. I use them for isolating a rack off the floor so it does not become a "lighting rod".? In the past I’ve just used a plywood plate however, when wet it conducts, of course. I would imagine there's a grounding kit, but all I need are the washers as I have concrete anchors and bolts, etc. An insulating(rubber?) pad would be another item I'd like to locate.
--
-
Regards, Karl Shoemaker
To contact me, please visit SRG's web site at?
for the current email address.
? -- The Real RFI-EMI-GUY
|
I work with many LMR sites and only once saw radio cabinets electrically isolated from the concrete floor/rebar. In this 40+ floor building rooftop, the equipment? was bonded back to a central grounding plate. For some reason the consultant for Westinghouse wanted all the Metricom data stations isolated from the building steel. In 99.999% of the cases in my work, Motorola R56 had all that equipment and building steel bonded together for equipotential. The broadcast industry might have a different view to keep common mode noise out of signal paths, but isn't that why line isolation transformers were invented?
toggle quoted message
Show quoted text
On Wed, Aug 23, 2023 at 11:52 AM, Matt AL0R wrote:
Curious on your isolation methodology for any conductive paths to/from the rack. I’ve seen many attempt to isolate a rack, yet many other paths were available, negating the isolation.
?
Matt
?
From: [email protected] <[email protected]> On Behalf Of Karl Shoemaker
Sent: Tuesday, August 22, 2023 6:01 PM
To: [email protected]
Subject: [repeater-builder] insulation shoulder washer
?
My source & stock have run out so I'm looking for a source for now and future. My usual Tessco tech site did not come up with them. I’ll try Tally as well. I use them for isolating a rack off the floor so it does not become a "lighting rod".? In the past I’ve just used a plywood plate however, when wet it conducts, of course. I would imagine there's a grounding kit, but all I need are the washers as I have concrete anchors and bolts, etc. An insulating(rubber?) pad would be another item I'd like to locate.
--
-
Regards, Karl Shoemaker
To contact me, please visit SRG's web site at?
for the current email address.
? -- The Real RFI-EMI-GUY
|
I would look into using mud flaps for a truck. They can be purchased everywhere, If you need to cut them in strips for the front and back then you can do that too. They also come in various thicknesses, or even a rubber mat for a horse trailer might be great. Plus they are at many hardware stores and western supply stores and they are perfectly flat.
On Wed, Aug 23, 2023 at 9:12?AM Karl Shoemaker < srg734@...> wrote: I heard back from central steel fab; they want about $7 each with a min. order of 100. Och! $700 ?? I'll use plywood for now and keep searching.
Or maybe a sheet of Plexiglas or kitchen top teflon type material. I think the shoulder washers are part of a kit from Andrew so I'll keep trying to get a contact with them.
These big companies; it's like the little ant working up against a 3" pine beetle.
--
-
Regards, Karl Shoemaker
To contact me, please visit SRG's web site at?
for the current email address.
-- Glenn (Butch) Kanvick KE7FEL/R 1-406-655-1232 ?
|
All manner of rubber feet and isolating components are available from Partsexpress.com ? They sell pro audio equipment and speaker building materials. They have 45 different rubber feet options on the website.?
toggle quoted message
Show quoted text
On Aug 23, 2023, at 2:36 PM, Glenn (Butch) Kanvick <hotlrv1@...> wrote:
? I would look into using mud flaps for a truck. They can be purchased everywhere, If you need to cut them in strips for the front and back then you can do that too. They also come in various thicknesses, or even a rubber mat for a horse trailer might be great. Plus they are at many hardware stores and western supply stores and they are perfectly flat. On Wed, Aug 23, 2023 at 9:12?AM Karl Shoemaker < srg734@...> wrote: I heard back from central steel fab; they want about $7 each with a min. order of 100. Och! $700 ?? I'll use plywood for now and keep searching.
Or maybe a sheet of Plexiglas or kitchen top teflon type material. I think the shoulder washers are part of a kit from Andrew so I'll keep trying to get a contact with them.
These big companies; it's like the little ant working up against a 3" pine beetle.
--
-
Regards, Karl Shoemaker
To contact me, please visit SRG's web site at?
for the current email address.
-- Glenn (Butch) Kanvick KE7FEL/R 1-406-655-1232 ?
|
If you're trying to isolate a steel rack from Moto' then this will work (proper hole spacing)
I have a source of the shoulder washers with the proper size to fit the above mentioned rack but it will have to wait till tomorrow
If you need an isolation kit for a Chatsworth style rack, go to their website
call me and we can discuss
Doug
N7BFS
|
toggle quoted message
Show quoted text
If you're trying to isolate a steel rack from Moto' then this will work (proper hole spacing)
I have a source of the shoulder washers with the proper size to fit the above mentioned rack but it will have to wait till tomorrow
If you need an isolation kit for a Chatsworth style rack, go to their website
call me and we can discuss
Doug
N7BFS
|
Ok, so I decided to check my records tonight since I'm still rolling...
The shoulder washer (they call it a bushing) that I sourced, and no their website isn't as easy as your favorite monopoly but it's the right product and the price is right in quantities of 100...
the parent page?
And surprisingly Hammond makes the isolation kit too
So, there ya go, many options, you should be able to take it from there
Doug
N7BFS
|
Thanks, guys for the additional input.?? I'm mainly going with a source for the shoulder washers (bushing) for my stock to replace damaged ones.
But yes, the plates to slip under will be good, too.
--
-
Regards, Karl Shoemaker
To contact me, please visit SRG's web site at?
for the current email address.
|
After two years they have not provided a clickable link from their main page. They call them "bushings" but I get a different page that what he posted.?
But yea, I'm used to the ?"as your favorite monopoly" since I'm a windows clone. I think you were thinking about amazon, which I do a lot of shopping. They are sooo handy.
Thanks again for the tip :)
?
Pasted text:
"The shoulder washer (they call it a bushing) that I saw, and no their website isn't as easy as your favorite monopoly but it's the right product and the price is right in quantities of 100...
http://seiscoanchors.com/catalog/BUSHINGS/cwdata/sp865357.html
the parent page ?http://seiscoanchors.com/catalog/BUSHINGS/bushings.html"
Also, I noticed by adding attachments here on this Group it strips off the parentheses ?"( )" (file name change). ?Strange. At least it appears this way (logging in the site).
Perhaps the "email" way (that most folks use) keeps them? ?I'll have to ask Kevin some day if that's an anti-spam thing. ?
I should add this vender on the "tower" page for SRG. They are nice to work with. All orders are either emailed and/or phoned in. ?Gee, what a concept people actually talk to each other :)
-
Regards, Karl Shoemaker
To contact me, please visit SRG's web site at?
for the current email address.
|
Karl Shoemaker
Don Clark
RFI-EMI-GUY
Glenn (Butch) Kanvick
