Re: [DIYbio] DIY Gel System

Recently I found this boost converter DIY guide/calculator... ordered
some inductors from Taiwan for getting 1.8kV out, the same circuit
should easily work for the 60-90V supply you're using. How much are
you paying for that, found something for $10 shipped, so building a
PCB is gonna be hard to compete with those prices:
http://www.aliexpress.com/item/100W-DC-DC-Boost-Converter-10-32V-to-60-97V-72V-80V-84V-90V-2A-Step/1414094817.html

Huh, just did a search for boost high-voltage and found a 7kV supply
for <$7 shipped... huh, maybe I won't be designing a kV boost after
all (for electroporation or capillary electrophoresis).
http://www.aliexpress.com/item/New-DC-3V-to-7KV-7000V-High-voltage-Generator-Boost-Step-up-Power-Module-free-shipping/1326494805.html



Ok, now a question about the gel box. I can't tell from the images if
the gel is cast between two plates, or if it's got an open-air top. I
don't see a gasket, do you need to tape the edges of the gel boat?

On Fri, Nov 1, 2013 at 10:47 PM, Avery louie <inactive.e@gmail.com> wrote:
> Hello DIYBIO,
>
> For the past few months I have been working on a gel system, including a gel
> power supply and transilluminator. I have finally settled on something that
> I think works and I would like to share it with you.
>
> The core ideas behind the box are that it should save you time, have a small
> footprint and be cheap and easy to assemble. The kit I am selling only
> costs $200, and should take about an hour to build using only a screwdriver.
>
> The footprint is 5.5x5.5 inches, which is smaller than most power supplies
> on their own. In this package there is a variable-voltage (60-90V) power
> supply, and an illuminator.
>
> The gel casting trays I have are cheap- $20 each. This means you can buy a
> few and pre-cast gels, in parallel which saves you time. They are also
> reusable. Compare this to the hundreds of dollars for a gel chamber new, or
> the $10 pre-cast e-gels. GelIS sits in a happy medium allowing you to
> choose what kind of gels you want to have on hand, for a reasonable price.
>
> You can see pictures and notes on the development here, assembly
> instructions here, and you can buy one here.
>
> Let me know if there are any questions. More details on use and design to
> come in the next week or so, so follow my blog if you are interested.
>
> --A
>
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--
-Nathan

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