timmeh2 Posted March 27, 2019 Share Posted March 27, 2019 Hi The one thing that OP could do reasonably easily is split out the motor feed and the line side of the lamp transformer, assuming it's a bog-standard type and not some electronic nonsense, which I doubt considering the units age. Then you could dim them. All the bestTimmeh. Link to comment Share on other sites More sharing options...
Andyb75 Posted March 27, 2019 Author Share Posted March 27, 2019 This is what it looks like inside https://ibb.co/7y76pLG Link to comment Share on other sites More sharing options...
Jivemaster Posted March 27, 2019 Share Posted March 27, 2019 One transformer -look out for 24 or 48v. Link to comment Share on other sites More sharing options...
themadhippy Posted March 27, 2019 Share Posted March 27, 2019 One transformer -look out for 24 or 48vOnly if all the lamps are in series,they could be wired in parallel or series parallel pairs Link to comment Share on other sites More sharing options...
Gerry Posted March 27, 2019 Share Posted March 27, 2019 I've got some and rewired them so the motor and lamps are "controllable" separately.They are just transformer driven PAR36 lamps that can be dimmed.Forget about syncing any movement of the lamp heads. They do their own thing when powered on.CheersGerry Link to comment Share on other sites More sharing options...
Jivemaster Posted March 27, 2019 Share Posted March 27, 2019 That unit is how scanners were before moving mirror lamps and before stepper motor/driver sets. Accept it, or pay someone to take it away! PAR36 lamps were either 6 or 12 volts usually, so looking at your pictures I'd consider that the transformer could be 6v 24A or 24v 6A. Be very cautious about nasty burning smells when trying to dim old transformers -nasty personal experience. Dim them if you must by putting gel over the lamps (and watch it cook!). Link to comment Share on other sites More sharing options...
Andyb75 Posted April 1, 2019 Author Share Posted April 1, 2019 Thanks for all the reply’s I will just use them as they are after taking onboard the advice here Only problem I have is one of them keeps stopping but if you just nudge it it moves again how can I sort this ? Link to comment Share on other sites More sharing options...
Jivemaster Posted April 1, 2019 Share Posted April 1, 2019 Try (it's only internet advice) a spot of thin oil on the easily accessible moving bearings, look for anything that may jam the linkages. Link to comment Share on other sites More sharing options...
bigclive Posted April 2, 2019 Share Posted April 2, 2019 The scanners rely on the characteristic of synchronous motors that they reverse when they hit an obstruction. Sometimes the end limit they reverse on is just on the transition between magnetic poles in the motor and it stalls. Sometimes placing a rubber sleeve or pad on the end stop will prevent it stalling. Link to comment Share on other sites More sharing options...
Jivemaster Posted April 2, 2019 Share Posted April 2, 2019 Sometimes a "mirror ball motor" from any disco shop will dismantle to yield a suitable motor, try the cheaper ones(!) the bigger more expensive ones also run much slower, 0.5 to 5 rpm is a typical of the fixed speeds available, 2 or 3 rpm is my idea of a good start. Link to comment Share on other sites More sharing options...
Andyb75 Posted April 2, 2019 Author Share Posted April 2, 2019 Thanks Clive I’ll try adjusting that as you mention if I was going to change the motors I’d have to make sure they are the correct voltage they run at 20rpm at the moment about half that would be ideal will have to look out for some cheap motors if I decide to change them learning all the time I think this fixture is Great very simple compared to modern day movers ! Link to comment Share on other sites More sharing options...
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