James Posted May 28, 2008 Share Posted May 28, 2008 I've got one of these Solari clocks... and want to try and wire it up to see if it's still working.It says it's 6 volt, 140 ohm - and that’s all the info it gives me... the orange cylindrical coiled part says it's "60 ohm"Anyone got any ideas?James Link to comment Share on other sites More sharing options...
toomanyprojects Posted May 28, 2008 Share Posted May 28, 2008 Just "wang" a six volt battery on it, should work, I guess it connects to that choc block in the corner Link to comment Share on other sites More sharing options...
Alex Posted May 28, 2008 Share Posted May 28, 2008 Wow proper techie stuff ;D Link to comment Share on other sites More sharing options...
neilnaz2 Posted May 28, 2008 Share Posted May 28, 2008 Are you fitting that in the dash of the MkI James? ;D Link to comment Share on other sites More sharing options...
Doverschooltas Posted May 29, 2008 Share Posted May 29, 2008 Hi.Put a 140ohm 5 watt resistor in seriese with it and it will run on 12 volts. Or you can get a little voltage regulator that will take 12 volts and drop it down to 6 volts. That is of course assuming you want to run it in a car. If it has been stood for a while it might need a tiny bit of oil & s flick start........You can't kill yourself with 6volts unless you swallow the battery...Good luck. Pete Link to comment Share on other sites More sharing options...
James Posted May 29, 2008 Author Share Posted May 29, 2008 Ummm - it's a bit big for my car... it's about a metre in width!I'll give it a go - need to find a 6 volt power supply...Thanks everyone... Link to comment Share on other sites More sharing options...
bodders1 Posted May 29, 2008 Share Posted May 29, 2008 jcarruthers wrote:I'll give it a go - need to find a 6 volt power supply...What's the worst that could happen with 6v?...."fffzzzzzrt" Link to comment Share on other sites More sharing options...
neilnaz Posted May 29, 2008 Share Posted May 29, 2008 An old phone charger (often 9v output I think) would do with a resistor in series unless that clock absorbs copious amounts of power. Often electrical equipment is not that sensitive to voltage accuracy. You could use a bridge to drop down the 9v to 6v but that might well be OTT.You could always get a multi-functional charger from Argos or similar with programmable output and various adapters. they are usually around £5 and could be a good way of powering the clock for good.Regards, Neil Link to comment Share on other sites More sharing options...
toomanyprojects Posted May 29, 2008 Share Posted May 29, 2008 If it's that big, I think you'll struggle with a battery, you'll probably need a 6V motor bike or even car battery to keep it going for any length of time.Find a 6V transformer, probably best to look in model railway circles, most are 12V but I'm sure you'll find something 6V (Goes browsing ebay) Link to comment Share on other sites More sharing options...
James Posted May 29, 2008 Author Share Posted May 29, 2008 Let me know if you find anything :) Link to comment Share on other sites More sharing options...
toomanyprojects Posted May 29, 2008 Share Posted May 29, 2008 6V 140 Ohm, V=IR I =V/R I = 6/140 = 0.04 AmpsP= VI 6x0.04 = 0.24WSo your looking for a trasformer that does more than 40mA or 0.24WThat's pretty much any 6V AC adapter, phone charger you name it, as long as it's 6V! Link to comment Share on other sites More sharing options...
James Posted May 29, 2008 Author Share Posted May 29, 2008 Ok - I've found a simple multi-voltage 300ma power adapter... I'll order that and see...Thanks guys! Link to comment Share on other sites More sharing options...
toomanyprojects Posted May 29, 2008 Share Posted May 29, 2008 http://search.ebay.co.uk/search/search.dll?from=R40&_trksid=m37&satitle=6V+power+supplyThink nearly all of these will do the job.Saying that, according to my calculations, you should be able to test it with any old battery set up, or even a 6V battery charger (bet you've got one of them) should work, but then I don't gaurentee it doesn't blow up! Link to comment Share on other sites More sharing options...
Burnerboy Posted May 30, 2008 Share Posted May 30, 2008 HOW wide James? 1 metre? What the f**k are you going to do with that, lol. Link to comment Share on other sites More sharing options...
James Posted May 30, 2008 Author Share Posted May 30, 2008 Hang it on the wall in our studio :) Link to comment Share on other sites More sharing options...
Jason Posted May 30, 2008 Share Posted May 30, 2008 jcarruthers wrote:Hang it on the wall in our studio :)Obviously - is it cheaper than buying every one specs :-) Link to comment Share on other sites More sharing options...
James Posted June 11, 2008 Author Share Posted June 11, 2008 Well I finally got this wired up - and it works! Sort of...It needs a supply that pulses every minute for the thing to work.The big orange thing is an electro magnet - this triggers the mechanism to go round and flip the numbers.Anybody clever that can help? Hopefully the simplest solution possible - but it needs to be pretty accurate... Link to comment Share on other sites More sharing options...
Rumpith Posted June 11, 2008 Share Posted June 11, 2008 Pulsing power? Hmm... Can't see a circuit board, but that sounds like a faulty capacitor to me...Just had a similar problem with my tumble dryer, saved myself a couple of hundred quid by replacing a capacitor on the circuit board £2.52 from Maplin! Link to comment Share on other sites More sharing options...
Rumpith Posted June 11, 2008 Share Posted June 11, 2008 Oh, and Andy, thanks for reminding me of my O'level physics, those Voltage/Current/Resistance formulae!!! Link to comment Share on other sites More sharing options...
James Posted June 11, 2008 Author Share Posted June 11, 2008 There's no timing mechanism in the clock itself - it must have been controlled by a control box of some sort - probably so it can be set without having to climb up a ladder. Link to comment Share on other sites More sharing options...
bodders1 Posted June 12, 2008 Share Posted June 12, 2008 PM sent Link to comment Share on other sites More sharing options...
junkuser Posted June 13, 2008 Share Posted June 13, 2008 Thanks for the PM Bodders. Remember a setup in one of the buildings at Sydney University in the 50s which used a large, wall mounted pendulum clock as the timer to drive the repeaters.The pendulum passed between coils to generate the timing signal (I think at one per second) but I have no idea of how this was then treated to control the pulse to drive the repeater, all pre-solid-stateThis could be an interesting project for you! Link to comment Share on other sites More sharing options...
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