Pin spots wiht transformers being dimmed

[gazzer1uk]

Hi guys,

 

Looking through the posts I thought I would like to check the theory!!!

 

I am intending buying some of these " PAR 36 Pinspot Can with an Integral 6Volt 30Watt Transformer for Connecting to a 240Volt Supply"

 

I have a showtec multi dim which has two outlets per channel.

 

I believe I need to place a ballast on the load to prevent the transformer turning into a rectifier which casues DC current and quite quickly death to the transformer!!!!

 

So, if I use one of these on each channel and on the second outlet of each channel have a par can (54 500 watt lamp in my case), then we should be OK???

 

Thanks,

 

Gaz

[musht]

Use Multidims for transformer fed loads , all the time, including pinspots.

 

Pinspot will usually dim to zero without a ghost load, wouldn`t hold them on low check for extended periods as it may overheat the transfiormer.

 

For chasing small loads like trafo fed LEDs and fairy lights have even used a 15W Pygmy lamp covered in black wrap as the ghost load.

 

In general it is a good idea to run a conventional load in parallell with a trafo fed load.

 

My personal experience of Multidims over last few years is they are very robust little dimmers.

[gazzer1uk]

Thanks Musht,

 

So in principle, should not overly worry but a dummy load would be advantageous..... Don't stay dim for too long though!!!

 

Cheers,

 

Gaz

[musht]

.. Don't stay dim for too long though!!!

 

Possibilty of feeding trafo a DC component at less than full which getrs them hot and bothered, fade over a few seconds fine, 10 minute sunrise cue , bit more care and ghost load kinder on everything ;-)