solar pump

[Dave-Leeds]

Does any1 know the cheapest place to get a power supply for a solar pump

cheers

[Fil]

check your old power bricks for anything 8-12v with more than 1.5a power.
failing that for a cheap easy controllable supply check out ebay for basic tattoo powersuplies, thay have a control knob for voltage limiting built in. you just need a couple of mono 1/4" jack plugs one for the pump to plug in and the second to short out for the footswitch socket to turn on the juice.

http://www.ebay.co.uk/itm/30-000-RPM-22 ... 4164b1854b

[Dave-Leeds]

Cheers fil.had a look and no spare plugs kicking about. Prob see if i can pick 1 up somewhere.

do i just snip into to plug wire and join up with correct wires on pump

[Fil]

check the polarity of the unit you get, and wire the pump into a 1/4" mono jack plug, there is also a footswitch jack socket to turn on, you could roll up tin foil over something about 6mm in diameter to short that out or a 2nd jack plug, i stuck a latching microswitch on the end but i have also hacked mine a bit an have no power on off switch at the back.
my hi tech stir plate mod may illustrate

[DethApostle]

I got one of these off ebay
Didn't get it from China so was a little more expensive mind you.

DA

[Dave-Leeds]

Cheers mate that looks alot better option

for the power supply will i be able to run the correct size amp adaptar straight to the terminals

[Dave S]

The correct PSU from the solar project is only £15 without the farting about.

[Fil]

The correct PSU from the solar project is only £15 without the farting about.

true but with the voltage control against the wall while plugged in not too easy to adjust on the fly
http://shop.solarproject.co.uk/newshop/ ... ucts_id=22

though would provide full control with DA's dimmer control.

if using a spare powerbrick the amp value on the brick should exceed the draw from the pump if lower it could overheat and burn out.

edit the calculator here http://www.rapidtables.com/calc/electri ... ulator.htm could help if your unsure
and add .5amp to be safe especially if using a dimmer as that will leach some power also.