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 Post subject: Hardware Help For Mounting Loopstick Coils
PostPosted: Dec Sun 22, 2019 9:22 pm 
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Joined: Jan Mon 17, 2011 2:10 am
Posts: 223
Location: Revere,Massachusetts U.S.A.
Hi Forum, I am always trying to find the correct material for mounting loopstick coils. I find a piece of metal and bend it into an "L" shape and drill out a larger hole for the stick......
I'm wondering if anyone has considered using a preformed "Plastic-L Shaped" I am looking at eBay and trying to find a plastic piece like used on brackets .....

Well any idea's on this should I just buy a small piece of sheet metal and suck it up ? or try a plastic piece?

I await your wisdom.
Tony

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 Post subject: Re: Hardware Help For Mounting Loopstick Coils
PostPosted: Dec Sun 22, 2019 9:42 pm 
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Joined: Jul Tue 15, 2008 6:13 pm
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Location: Gretna, Nebraska
Considering that the ferrite rod is somewhat brittle, I would be looking for a mounting system that has some soft mounts for the actual stick. Maybe a couple of one-hole plastic cable straps attached to an aluminum L- bracket.
You also might be able to incorporate a pair of rubber grommets in the system you described above to provide the same cushioning effect.

I think you want to avoid ferrous materials in close proximity to the loopstick to avoid any de-tuning. I am sure some others with additional ideas will chime in.

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 Post subject: Re: Hardware Help For Mounting Loopstick Coils
PostPosted: Dec Sun 22, 2019 9:50 pm 
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Joined: Jan Thu 01, 1970 1:00 am
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Location: Massachusetts
maybe look at plastic angle stock, neighbor.

https://www.mcmaster.com/plastic-angle-stock


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 Post subject: Re: Hardware Help For Mounting Loopstick Coils
PostPosted: Dec Sun 22, 2019 11:26 pm 
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Joined: Jun Sun 15, 2014 5:37 pm
Posts: 400
Location: Montreal, Quebec
Take a piece of flexible plastic,like tge lid of a margarine or yogurt container, and cut a strip from that. Drill holes at each end, and wrap it around the loopstick. Then mount it with a bokt through the holes.


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 Post subject: Re: Hardware Help For Mounting Loopstick Coils
PostPosted: Dec Sun 22, 2019 11:29 pm 
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Location: SoCal, 91387
I wouldn't use any type of ferrous metal with which to mount a ferrite loopstick, as there could be some interaction. Use some form of plastic instead.

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 Post subject: Re: Hardware Help For Mounting Loopstick Coils
PostPosted: Dec Mon 23, 2019 2:40 am 
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Joined: Jan Mon 17, 2011 2:10 am
Posts: 223
Location: Revere,Massachusetts U.S.A.
Thank You to everyone who responded. I really appreciate it so very much.
Happy Holidays
Tony

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 Post subject: Re: Hardware Help For Mounting Loopstick Coils
PostPosted: Dec Tue 24, 2019 12:09 am 
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Joined: Jan Thu 01, 1970 1:00 am
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Location: Beaver Falls, PA. USA
In the old days, they used plastic cable clamps. Sometimes, they were glued to a piece of "fish paper", which was mounted to the chassis.

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 Post subject: Re: Hardware Help For Mounting Loopstick Coils
PostPosted: Dec Tue 24, 2019 5:31 am 
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Joined: May Tue 30, 2006 4:46 pm
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Location: Santa Rosa, CA
Adjustable loopstick coils came with a metal mounting bracket.

https://www.worthpoint.com/worthopedia/ ... 1431856580

Rich


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 Post subject: Re: Hardware Help For Mounting Loopstick Coils
PostPosted: Dec Tue 24, 2019 8:33 am 
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Location: SoCal, 91387
Rich, W3HWJ wrote:
Adjustable loopstick coils came with a metal mounting bracket.

https://www.worthpoint.com/worthopedia/ ... 1431856580

Rich

Correct, and I built a few receiver circuits using them. However, the bracket fit right behind the (also) metal collar which retained the threaded shaft connected to the Ferrite core in a way that added minimal presence. And the core was adjustable, for any needed compensation.


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 Post subject: Re: Hardware Help For Mounting Loopstick Coils
PostPosted: Dec Tue 24, 2019 8:57 am 
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Joined: Aug Thu 06, 2015 2:20 am
Posts: 251
I frequently use 2 pieces cut from a hot glue stick to support the loopstick or ferrite rod above the chassis. It is easily removable and may be made to look very pretty.


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 Post subject: Re: Hardware Help For Mounting Loopstick Coils
PostPosted: Dec Tue 24, 2019 1:15 pm 
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Location: Gretna, Nebraska
I guess I was thinking non-adjustable ferrite antenna coil in my earlier answer.

The adjustable ones like pictured above are obviously designed to me mounted in a hole in a metal panel.

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 Post subject: Re: Hardware Help For Mounting Loopstick Coils
PostPosted: Dec Tue 24, 2019 3:05 pm 
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Location: 13 Critchley Avenue, PO Box 36, Monteith Ont, P0K 1P0
Why not use tye-wraps with the screw hole ??

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 Post subject: Re: Hardware Help For Mounting Loopstick Coils
PostPosted: Dec Tue 24, 2019 4:22 pm 
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Location: Somers, CT
Generally advisable to use non-ferrous metal near tuned circuits, less losses. The
adjustable loop sticks had an aluminum L bracket. For solid ferrite bar antenna coils,
plastic cable clamps can be made to work.

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