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Re: Substrate cables
At 03:48 PM 1/2/01 -0500, Lyndle Schenck wrote:
>A good source for transformers are at home improvement stores like Home
>Depot. They sell low voltage outdoor lighting transformers with built-in
>timers that are cheaper than you can build them yourself.
Be very very careful. Most cheap transformers are connected to one side
of the line on the secondary side to save money (often called
autotransformers). There is nothing wrong with this design if you wire it
up correctly and use a GFI to be doubly safe. If you screw up, they carry
you out in a box when something goes wrong (or worse yet, one of your
kids). Be triply sure you know what you are doing and that you did it right.
--
Dave Gomberg, San Francisco mailto:gomberg at wcf_com
NEW Planted Aquaria Magazine: http://www.wcf.com/pam
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