How important is the 1 amp? Do I have to limit it to 1 amp or will it
draw up to one amp?
My power supply will deliver about 20amps at 5 volt (recycled computer
PSU) so I am going to need to put a resistor in there it limit it.
> -----Original Message-----
> From: mpdickens [mailto:md30022@...]
> Sent: Friday, November 14, 2003 6:07 PM
> To: Homebrew_PCBs@yahoogroups.com
> Subject: Re: [Homebrew_PCBs] Etchant regeneration by electroplating
>
>
> Well, the copper is electroplating out. Here is my
> setup:
> 1 AMP
> (-) (+)
> | |
> / \
> / \
> (-) (+)
> | |
> | |
> --------------------- Top of fecl2
> | |
> --------- ---------
> | (-) | | (+) |
> | iron | | iron |
> | plate | | plate |
> |cathode| | anode |
> --------- ---------
>
> I'm thinking that if I adjust the ph by adding a
> little hcl, the colloidal copper solids (The dirty
> white lumps in the bottom of the tank) will dissolve
> back into solution. I suspect this would make the
> process much more efficient and faster. I'm going to
> get some litmus paper and see what the ph of fresh,
> unused ferric chloride is and then adjust the used
> fecl3 to match it.
>
> Best regards
>
> Marvin Dickens
>
> =====
> Registered Linux User No. 80253
> If you use linux, get counted at:
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