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Xenon flasher for electric fence

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David HK:
Attached is a photograph of an Xenon flasher for an electric fence. The red wire goes to the fence 'live' wire and the green to an earth rod. The Xenon tube flashes with each electrical pulse. I have partly worked out the circuit and connected components where this can be observed.

Can anyone else identify the components and the circuit links?

Dave

Edit note: There is a dark patch on the PCB which 'might' be another part associated with the trigger of the tube.

David HK:
There is a chance that Gallagher may have discontinued the G505 electric fence Live Lite because it does not feature in the latest brochure.

See this PDF  http://www.gallagherusa.com/files/Gallagher-USA-Catalog-0913.pdf

Instead they show a Live Fence Indicator Model G51100 which uses LED's.

I have sent them an e-mail to ascertain the current position and will post the reply when it arrives.

Dave

David HK:
Just as I thought, here is the e-mail reply:-

David,

The Live Lite was replaced by the Live Fence Indicator.  G51100 is the part number and it can be found and purchased on our website.

Thank You!
Gallagher Customer Service

For the time being I am giving up making this circuit.

I shall concentrate on the LED type flasher because I made a working prototype about one year ago.

Dave

David HK:
Correction.

The new model Live Lite does not use batteries and takes its power from the fence pulse with another connection to ground.

Whether or not the new model is using Xenon tubes or LED's is very difficult to determine.

Dave

David HK:
I have been studying the PCB and concentrating on the white text. Below is a mark up on what I can observe. It is interesting to note that the capacitor is clearly marked as C2, so the question is where is C1? I now suspect that other parts are on the hidden side of the PCB and may consist of:- one more capacitor and the trigger coil unit. After much research on the Internet I have not found one single Xenon tube that does not have a trigger coil in the circuit diagram.

Anyone care to comment?

Dave

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