I've also posted here as well. BTW, Steve I'm a gurrrlll. See it under Files/CONSTANT CURRENT SOURCE in this group.
Sincerely,
Ms. Smilingcat KI6YMF ;)
--- In Homebrew_PCBs@yahoogroups.com, "AlienRelics" <alienrelics@...> wrote:
>
> He has posted a PNG of the schematic on the Electronics_101 Files area:
>
> http://groups.yahoo.com/group/Electronics_101/files/Constant%20Current%20Source/ireg2.png
>
> Discussion of the specific merits of the design and its construction should occur on that group.
>
>
> Steve Greenfield AE7HD
>
>
> --- In Homebrew_PCBs@yahoogroups.com, Vicent Colomar Prats <vicentecolomar@> wrote:
> >
> > Me too, interested in that design.
> >
> >
> > 2012/11/29 Kevin Byrne <kbyrne10@>
> >
> > > ∗∗
> > >
> > >
> > > I would also like to see your design. Is it posted yet? Kevin
> > >
> > > ________________________________
> > > From: Rick Sparber <rgsparber@>
> > > To: Homebrew_PCBs@yahoogroups.com
> > > Sent: Wednesday, November 28, 2012 11:36 PM
> > > Subject: RE: [Homebrew_PCBs] Want to plate drill holes for your double
> > > sided PCB's
> > >
> > >
> > >
> > >
> > > I'll certainly enjoy studying it.
> > >
> > > Rick
> > >
> > > -----Original Message-----
> > > From: Homebrew_PCBs@yahoogroups.com [mailto:Homebrew_PCBs@yahoogroups.com]
> > > On Behalf Of smilingcat90254
> > > Sent: Wednesday, November 28, 2012 9:15 PM
> > > To: Homebrew_PCBs@yahoogroups.com
> > > Subject: [Homebrew_PCBs] Want to plate drill holes for your double sided
> > > PCB's
> > >
> > > I just posted on electronics-101 with an offer to post a constant current
> > > source design and theory of operation for use in plating PCBs.
> > >
> > > If anyone is interested in 0-5 AMP constant current source speak up and I
> > > will post a schematic, BOM, and a layout here. It's relatively simple
> > > design. Power source for the circuit comes from an old 12V car battery
> > > charger. The stupid ones which doesn't know when the battery is topped off.
> > > They can supply 10,20 30AMPS at 12V.
> > >
> > > I'm in a process of setting up a plating for my PCB's thus I designed a
> > > circuit for such use. component count was one reference supply voltage IC,
> > > 7
> > > small signal transistors, one pot, trim pot optional, Analog panel meter so
> > > you know what you are putting out, power transistors and 9 resistors I
> > > think
> > > one small cap for feedback stabilization filter caps.
> > >
> > > Sincerely,
> > >
> > > Ms. smilingcat
> > >
> > > ------------------------------------
> > >
> > > Be sure to visit the group home and check for new Links, Files, and Photos:
> > > http://groups.yahoo.com/group/Homebrew_PCBsYahoo! Groups Links
> > >
> > > [Non-text portions of this message have been removed]
> > >
> > >
> > >
> >
> >
> > [Non-text portions of this message have been removed]
> >
>