Do-it-yourself Kit power supply
Do-it-yourself kit with 24 volt power supply. 
All you need to make your own device to produce colloid silverwater or goldwater.
You get the following: 
1 x 24 V power supply, 
a 3.3 or 5.1 kOhm resistance, 
a holder with screws 
but no electrodes
Attention: This product does not includ the eletrodes.
Please add your desired electrodes in the corresponding section.
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Look on the pictures below or here or my film-guide.