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Stowe Trailing Log

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Skykomish E29 says:

Are there any electronics experts out there or indeed somebody who owns one of these machines, as I need some advice/help.
I have purchased a very nice Trailing log to fit the original bracket on the back of Aeolus, however on opening her up I find that the battery connectors are quite large and am not sure what battery I am supposed to use.
There is nothing on the casing to suggest battery type or voltage. The only clue is the "miles Counter" which is rated at 7.5 volts.
The battery terminals are the sort that you would use for a conventional 9volt rectangle battery, but much larger, the hole for the battery is 2.5 inches long and approx 1.75 inches across, (rectangular in shape)
I am inclined to think that the supply voltage should be about 6 volts would I be correct?
I am reluctant to put a 9 volt battery in ( which is widely available and would only require adapting the terminals)for fear of blowing the circuits, I seem to remember in the mists of my fading memory there were larger rectangular batteries available once, were these 6 or 9 volt.
would the voltage printed on the counter just be a nominal voltage or a maximum voltage?
Any suggestions or help would be appreciated
9:37AM, 28 March 2009 PDT (permalink)

busy home [deleted] says:

A PP9 is the battery. 9 v I could not get the right battery for mine
12v s is ok use a coupling, (we do on chille)
ages ago (permalink)

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Skykomish E29 says:

Really Ron?????? You put a 12 volt supply through yours?????
and here I was worrying about 9 volts...well I shall change the battery coupling and get a PP3
I know that was what my old one ran on, but bearing in mind it didn't work for more than 5 minutes I assumed that perhaps it was the battery that was too much for it, and I had blown the circuit.
It would certainly make life easier.
It was the 7.5 volt label on the counter that caused me to hesitate
Originally posted ages ago. (permalink)
Skykomish E29 edited this topic ages ago.

busy home [deleted] says:

Yes , I could not get a PP9,, told not avalable any more ,, we ran it off the 12v socket in the cockpit , ran fine till something bit the spinner . a mate repaired the cable ,, ok again now .
ages ago (permalink)

busy home [deleted] says:

Just been to Goskar ,, Mine is a seafarer It has a 12v in plug..
Up to you ,,
ages ago (permalink)

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Skykomish E29 says:

OK sent e mail to stowe and have downloaded an instruction manual from their website the battery is a PP7 difficult to get but available on line from specialist £7 including postage (Stowe were going to charge £13) . It is 9 volt and supposed to last 600 hours on one battery.
According to instruction manual operating voltage is between 6 & 10 volts.
Originally posted ages ago. (permalink)
Skykomish E29 edited this topic ages ago.

busy home [deleted] says:

Glad you sorted it. I know the batterys lasted for ever ,,
They are very accurate machines ,,I will use mine on Goskar, Ive had it from new , about 1978 ,
ages ago (permalink)

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Skykomish E29 says:

Same year as my Stowe. I like the idea of no tiny paddle wheel to get fouled up and only need to deploy when you actually wnat to know your speed. the boat came with a bracket on the back for this very item and seemed a shame not to fit a replacement. The first one I bought off E bay was a complete disaster having a lot of dampness inside It worked for approx five minutes before failing. This second model looks as new, and was bought on e bay once again but from a charity supporting British Waterways, they gave me a guarantee with it in as much as they were happy to refund my money if it didn't work. Looking forward to getting out on the water now that we are back in!!!
ages ago (permalink)

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