Homebrew PCBs

what temerature does it open at?  what's the part number of this 
switch?  

--- In Homebrew_PCBs@yahoogroups.com, John Johnson <johnatl@m...> 
wrote:
> An interesting variation is to add a temperature switch near, or 
in  
> contact with the iron's tip, when it's in the holder.
> When the temp rises, the switch opens, thus creating a "standby" 
effect  
> also. When out of the holder, the iron
> heats to full temp. The switches can be bought at RadioShack, and 
are  
> used in coffee pots, hair dryers, etc.
> 
> Regards,
>    JJ
> 
> On Monday, May 3, 2004, at 01:05 PM, Roy J. Tellason wrote:
> 
> > On Monday 03 May 2004 11:49 am, Dave Mucha wrote:
> >
> >>> screw-head to one side of a PCB, I use a 25 W. Ungar with an 
iron-
> >>> plated "stub" chisel tip.  A "diamond-point" tip is useful, 
too.  NO
> >>> pure-copper tips, as they simply dissolve-away in molten solder 
very
> >>> quickly!
> >
> >> The irons I am using are 30 watt cone point, similar to the 
diamond
> >> point and a 100 watt.
> >>
> >> Seems I should get a quality iron and quit with the toy stuff.
> >>
> >> The Ungar stuff I looked at on the Web was 700 deg, 
interchangable
> >> tip stuff.
> >
> > The screw-in element and screw-on (stud on the element!) stuff 
sold at  
> > Radio
> > Shack is Ungar,  I have 25W, 33W, and 45W elements and an 
assortment  
> > of tips
> > I use here.
> >
> > I've also built a little box with a couple of toggle switches and 
neon
> > indicators which I use for both an on-off switch and to put a 
diode in  
> > series
> > with it,  giving half-power for any of them,  comes in real handy 
for
> > "standby"...
> >
> >
> >
> >
> >
> >
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