Simple Voltage Regulator
I decided I needed to be able to control the power to my boiler when running the pot still. I was losing a lot of vapor from the condenser as the boiler was just going hard nuts the whole time.
I started by ordering a controller online.
I got this unit: http://www.dx.com/p/high-power-5000w-220v-electronic-voltage-regulator-scr-dimming-thermostat-regulator-white-381969 from dx.com. It cost me about $10 US.
I also got a small plastic jiffy box from jaycar to mount it in. ($8.50)
Found some old cables in the shed, hacked the ends off them and stripped the wires back.
Check which wire was live: https://en.wikipedia.org/wiki/Electrical_wiring
Never work on the cables when the are plugged in. ALWAYS UNPLUG before touching exposed wires!
Connected the live wires to the controller, making sure that I had the male plug on the 'in' side and the femail socket on the 'out' side. Then I linked the other wires up using a plastic brick conector I srounged up from a mate down the street.
Tested it on a stripping run to make sure it was going to work. It did!
I also put my temperature probe deep in the fins on the side of the controller to check how hot it gets. It was in the mid to high 30 degree celcius range, it never got over 40 degrees.
Then I drilled some holes in the plastic jiffy box, threaded the cables in, mounted the controller and hooked it all up again.
The last step will be to stick some velcro to it and hang it on the wall out of the way next to the power point where it can be easily hooked up and adjusted.
In my system, I run it at about 60% of full power, takes longer, but vastly reduced vapor loss.
I'm looking forward to using it on a spirit run! :)
You can watch it run here http://www.nzhomedistiller.org.nz/?q=content/uj-whiskey-stip-run-and-con...