simple loop alarm for exhibits

[Michael GilliganParticipant @michaelgilligan61133]

Posted by Howard Lewis on 03/10/2023 14:35:37:

Michael,

I don't reaslly understand details of the alarm, (The club bought it), so tend be a user rather than knowing much about it.

If the circuit is broken for any reason, the alarm sounds is about the extent of my knowledge, so assumed that it relied on a switched 3.5mm jack socket.

Howard

.

Thanks for your candid response, Howard … I was probably reading too much into your statement that the wire carried no current.

 

 

MichaelG.

Edited By Michael Gilligan on 03/10/2023 17:10:24

[Howard LewisParticipant @howardlewis46836]

Hopefully the battery would only be required to deliver current when the circuit is broken and the alarm activated..

I didn't phrase it very well.

Howard

[Michael GilliganParticipant @michaelgilligan61133]

Thanks again, Howard … I am happy to accept the spirit of what you wrote

I had no intention of nit-picking … just part of my ongoing quest for understanding.

MichaelG.

[DMBParticipant @dmb]

Extraordinary what risks a brainless thief will take. Many years ago, when ArcEuro and Maidstone Engineering had stands, along with other tool stands, there was a crowd gathered around another toolstand and I was at the back of the group. Someone on my left asked the stand holder a question, distracting him and someone on my right grabbed a handful of wooden file handles and disappeared. Probably only about 50p each then. I have seen small cheap items lifted a large chemist's and the culprit marched out fast. Also seen man and woman pushing small child in buggy around Debenhams, picking very expensive, at that time, £50 shirts, casually fold them up and place them on the shelf under the buggy. I had them stopped by Security. All very well having Alarm cables but only suitable for models on club stands. Potential trade stand customers want to pick up and examine items before purchasing. I think the kind of cctv screens used by supermarkets at their self checkouts would probably drive prospects away. Cost would likely be prohibitive for that purpose. I think you will find that the cheapest items are nearest the front on traders stands. I often buy eggs from a market stall in Brighton run by Steve Ovett's family. After he won an Olympic gold medal, it was put on display right at the back of the stand! Perhaps large Perspex type screens could be used for model and small tool displays.

Edited By DMB on 03/10/2023 22:17:19

[duncan webster 1]

On duncan webster 1 said

I made one years ago for our club. I’ve just sent a WhatsApp round to see if it can be found, if so you’re welcome to borrow it.

I’ve retrieved ours from the ex club member and it still works, photos when I get home

[duncan webster 1Participant @duncanwebster1]

Send me a pm and we’ll sort it off line

[Author]

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