Breadboard Power supply

[tomg]

A slightly different opinion........

Solderless breadboards like any other tool give results 
that are only as good as the process used to produce them.
If you use one of those lab-slabs that have been sprung
and dead for years you get what you would expect...crap! 
OTOH a good personal unit in good shape produces good 
results. If I had to give mine up I might as well just quit 
altogether. I'm on my third one....BTW I must be on my 
10th pair of slip-joint pliers...;-)

Tom



> Hi Mitch (et al...)
> 
> <Flamesuit on>
> 
> Solderless breadboards SUCK !!!
> 
> they are only good for Electronics 101 class... where the tracher can tell
> you why the
> one chip inverting op amp you just built doesn't work. Likely a loose
> connection.
> See Bob Pease "SMWISICDT" (show me where it says I can't do that...)
> porridge for
> corroborating evidence.
> 
> Loose connections, too much capacitance where you don't want it... SUCKS
> 
> I use vectorboard and T-42 terminals which work for all non-SMT stuff.  Most
> of my DIY are protos and they are so rugged that I have never had a failure.
> 
> I remember working for 10 hours in college on a solderless breadboatd... the
> circuit was fine but the proto-board sucked !!! "Hey this thing works,
> honest... it worked all day yesterday...really, it works...."
> 
> <Flamesuit off>
> 
> Actual mileage may vary. some folk like protoboards. I like to make a
> connection and solder it. Then I know it is connected. and when I cut a
> wire... its disconnected.
> 
> The battery hooks up just like any other supply... but batteries can deliver
> AWESOME amounts of current short term (like short circuit). A power supply
> with some form of current limit might be better for your use... then if you
> exceed like (1 amp?) the supply shuts down.
> 
> Most chips (as you know) should not get very hot unless someting is wrong.
> Usually the wrong pins connected to supply or reverse voltage. I won't blame
> your solderless breadboard for that (yet....)
> 
> H^) harry
> 
> mitchell wrote:
> 
> >     I have been experimenting with this solderless breadboard trying to
> > create some of the circuits from the Forest Mims Book. Sometimes they
> > work and sometimes not, I am a total amatuer. I have this problem
> > sometimes where it seems that everything is as it should be but the chip
> > I am using is getting very hot! I am not sure how I should power my
> > experiments I have been using the power supply for my synth, maybe this
> > is too much? If I use batteries how do I ground things properly?
> >
> > --M
>