Do you work cheap?-:) My first attempt for emoticon.
Give me what kind of cost if you build. 

As I indicated before, soldering is beyond me now. Sort of painful to say that 
because 
I completed High Reliability soldering class at Naval Weapons Center in China 
Lake California back in early '80s. Hands shake now.
Opa


Sent from my iPad

> On Mar 3, 2015, at 6:07 PM, John Popelish <[email protected]> wrote:
> 
>> On 03/03/2015 06:41 PM, Reece Maxey wrote:
>> I have 12, 19 and 24 volt adapters; bearing in mind this
>> is not laboratory grade  equipment. There will be
>> variations depending on input voltage. I do have a TDS
>> meter and a reasonably good Fluke digital VOM meter. Can
>> you provide source for components for this project?
> >
>> Opa
> 
> The 12 volt supply should work just fine. And your test
> equipment is all you need.
> 
> I'm designing, in my head, at the moment, but I think I can
> give you a parts list and schematic by tomorrow.
> 
> Come to think about it, it may just be easier for me to
> build you something and send it. I'm talking about two chips
> (a timer to set the reversal time, with an adjustable time
> and a dual flip flop to supply the outputs) and a few other
> parts.
> 
> If I solder it all together, there is a lot less chance
> something will come unplugged leaving you with repairs to make.
> 
> If you have useful results, then could come up with the
> details so that anyone could build one.
> 
> -- 
> Regards,
> 
> John Popelish
> 
> 
> --
> The Silver List is a moderated forum for discussing Colloidal Silver.
> Rules and Instructions: http://www.silverlist.org
> 
> Unsubscribe:
> <mailto:[email protected]?subject=unsubscribe>
> Archives:  http://www.mail-archive.com/[email protected]/maillist.html
> 
> Off-Topic discussions: <mailto:[email protected]>
> List Owner: Mike Devour <mailto:[email protected]>
> 
>