A friend of mine simply uses rectified wall outlet voltage. He doesn't even bother with a capacitor to smooth it, so it's really variable. Apparently it works fine..
Jonathan Cline <jncline@gmail.com> wrote:
>
>
>On Thursday, March 22, 2012 7:01:28 AM UTC-7, Nathan McCorkle wrote:
>>
>> At $10/gel the pre-cast option still sucks.
>> http://products.invitrogen.com/ivgn/product/G521801
>>
>> I really just want a solid HV power supply... Voltage and current
>> control with banana plugs.
>>
>
>At those dimensions, I believe a high voltage power supply designed for
>a
>CCFL laptop backlight would do. (For previous generation of laptops,
>anyway.) They are cheap from second sources, $20-$40 range. Make
>sure to
>get one with clear pinouts though.
>
>Most high voltage power supplies designed for scientific use are low
>ripple, designed to be stable for traditional lab use. However DNA
>doesn't care if the voltage is rippling +/- 10%, the gel runs fine
>anyway.
>
>
>## Jonathan Cline
>## jcline@ieee.org
>## Mobile: +1-805-617-0223
>########################
>
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