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scott
The junk box Mark Unseen   Feb 21 13:46 UTC 1998

This is where we trade little (or big) things needed for projects.
32 responses total.
scott
response 1 of 32: Mark Unseen   Feb 21 13:47 UTC 1998

Anybody got a spare 220VAC stove plug?  I've got a big theatre light to play
with, but it needs more than 15 amps.
keesan
response 2 of 32: Mark Unseen   Feb 21 19:48 UTC 1998

Do you mean the thing that goes on the end of a stove wire?  If so, yes,
plenty of them, check the socket to see if it is three straight or two
straight and one L-shaped.  We have both and can get you lots more on the ends
of 3-4' long cords (off of old stoves).  Or phone us for where to find one.
scott
response 3 of 32: Mark Unseen   Feb 21 21:11 UTC 1998

I'm looking for the heavy power kind:     \   /

                                            |

This is what 95%+ of all electric stoves in America use.  An old one from 
an old stove would be fine.

I'm hoping to just get one free, instead of buying a new one.  I could afford
to buy a new plug, but the idea behind this item is to enlarge everybody's
"junk box", which is where you typically go for an odd bit to complete
something (and all the odd parts left over or from a beyond-reasonable-repair
item go into the junk box).
keesan
response 4 of 32: Mark Unseen   Feb 23 04:58 UTC 1998

Phone us to pick up a plug, or for info on a source of used parts.  995-9463
or 662-1520.  Used parts for most appliances are available free.  Do you
happen to have a ceramic spacer which holds the heating coil in an old
fan-forced round space heater?  Ours broke during an attempted repair, and
otherwise will get replaced with a sawn-off ceramic fuse.  (Is there any
problem with just shortening the coil?).
rcurl
response 5 of 32: Mark Unseen   Feb 23 05:31 UTC 1998

If you shorten the coil its resistance will lower, and it will draw more
current and get hotter, probably causing other damage.
keesan
response 6 of 32: Mark Unseen   Feb 23 16:00 UTC 1998

In this case, the break is right at the end connection, so it should not
affect things perceptibly.  Jim has tried fixing things this way when the
break was in the middle and they really burn out fast.  There is supposed to
be some sort of connector to rejoin two broken ends, where to buy it?
rcurl
response 7 of 32: Mark Unseen   Feb 23 20:51 UTC 1998

A crimp connector might work. I haven't tried it, but the ends of heating
elements usually end in crimp connectors.
keesan
response 8 of 32: Mark Unseen   Feb 24 03:29 UTC 1998

That's what I used, but it did not last very long, about a week, because of
the dissimilar metals it heated up.  Are there nichrome connectors?
rcurl
response 9 of 32: Mark Unseen   Feb 24 05:28 UTC 1998

Probably...or a stainless steel. I tried to find some in an electronics
catalog, but they only have plated copper ones, which can't stand high
temperatures.
n8nxf
response 10 of 32: Mark Unseen   Feb 24 14:04 UTC 1998

When I use crimp connectors in high current applications, I not only
crimp but also solder.  For the crimp to perform reasonably well, you
*need* a ~$700 crimping tool!  Even then, soldering is better.  (Look
at the crimps in any well used electric stove or dryer if you don't
believe me.)
keesan
response 11 of 32: Mark Unseen   Feb 25 01:24 UTC 1998

I tried cutting off the end of a fuse to make a replacement for the ceramic
standoff, but those fuses are not made of anything that I've run into before,
they are not any ordinary ceramic.  A carbide does'nt do anything.  I used
a composite cutoff wheel, that doesn't do anything.   I presume it would take
a diamond wheel, and I have a 10" diamond wheel but I don't particularly want
ot use that on it.  What I need is an insulator from something else, about
the size of a lifesaver.  Anybody have one?  (The whole fuse, type "S" is too
big).  I will try a combination of solder and crimping next time I get around
to fixing that other heater that kept burning out.
scott
response 12 of 32: Mark Unseen   Feb 25 01:33 UTC 1998

Argh.. now I need a 3-pin stage plug.  Thought I had one, but I could only
find a couple of 2-pin items.  I'm looking for a female plug.  
keesan
response 13 of 32: Mark Unseen   Feb 25 17:19 UTC 1998

Is this 'female plug' going on the end of a cord, in which case it could be
called a cord cap (gives you something to plug into).  What is the diameter
of the pin circle.  What is a 'stage plug'?  Grainger catalog is helpful. 
An Insulgrip connector goes on the end of a cord.  A receptacle (female) goes
in the wall.  They come in different sizes.  Plug = male cord end.  Jim has
a couple cord ends, odd ones, around somewhere.  Diameter of pin circle? 
(Assuming three straight pins as above).  Wall or cord end?  If it is a cord
end, to be used on-stage, there are twist-lock types that don't come apart
accidentally.  You can get a subscription to Grainger by buying once there.
scott
response 14 of 32: Mark Unseen   Feb 25 17:23 UTC 1998

)yeah, I know Grainger)

It's not any common plug... so far as I know, only used in theatre lighting.
It's a very old, rather crude looking design.  
other
response 15 of 32: Mark Unseen   Feb 25 20:23 UTC 1998

stage pin plugs are not availablt in grqainger because they are used only in
theatrical application and the industry is kind of isolated (though becoming
less so).

                 _    _      _
                | |  | |    | |
                | |  | |    | |
              |~~~~~~~~~~~~~~~~~|
              |                 |
              |                 |

above is what the end of a stage pin plug looks like.  the pins are
cylindrical, and from left they are neutral, ground and hot (for standard
size).  they also come in a size about twice as large which is a 50/60 amp
size and the pin configuration for those is different.  

 end view :

                |~~~~~~~~~~~~~~~~~~~|
                | ( )   ( )     ( ) |
                |___________________|
n8nxf
response 16 of 32: Mark Unseen   Feb 26 11:52 UTC 1998

Have you tried Madison Electric or Wyandotte Electric?
davel
response 17 of 32: Mark Unseen   Feb 26 12:13 UTC 1998

When someone suggested Grainger to me as a source of something obscure, I went
there.  The guy there told me I had to be buying for a business.  (Then he
proceeded to put me down as representing a certain large organization in the
area, on the grounds (I think) that they'd never notice.)
scott
response 18 of 32: Mark Unseen   Feb 26 12:14 UTC 1998

(Nice ASCII, Eric!)

I'll end up going to Tobins Lake, just because I've always wanted to see that
place.  :)   

As for the plug, I'm going to just drill a hole in my existing 2-pin female
to accomodate the ground pin.  Since it is just a lamp with a 100 watt bulb
now, it will be OK.  Just need to make sure my ungrounded-zip-cord adapter
doesn't end up in a real theatre.  ;)
scott
response 19 of 32: Mark Unseen   Feb 26 12:19 UTC 1998

Grainger tends to be list-price, but convenient.  Once you get set up with
a business account, you can just call and have stuff delivered.  They then
mail an invoice to the company.

Stage plugs will likely *only* be available from theatrical supply places.
This is an old, non-safety design, now used strictly because of inertia.  The
original is very Karloff; a block of bakelite and 2 big copper pins.  There
are now grounded, locking versions, but there is still the basic look of a
standard set in the early days of electricity (Theatre was a *very* early user
of electric light, BTW).  Some places build recently (Huron High School comes
to mind) use safer twist-lock connectors, at the cost of compatibilty (they
have a hard time renting more instruments for big shows, since they either
have to change connectors on the rented lights or else keep a bunch of
adapter cables on hand).
keesan
response 20 of 32: Mark Unseen   Feb 26 17:29 UTC 1998

Grainger put us down as 'Deigert and Associates'.  Just tell them you are
self-employed but left your business card at home.
other
response 21 of 32: Mark Unseen   Feb 27 01:03 UTC 1998

oh, forgot to mention:  the pins on a stage pin plug are split, allowing for
adjustment of their size to improve contact and tightness of fitting.
Thanks, Scott.  :)
keesan
response 22 of 32: Mark Unseen   Feb 27 19:23 UTC 1998

I tighten some of the regular domestic 120 2-blade plugs by passing a knife
blade through the blade of the plug.  This is especially important on anything
that draws a lot of current for any length of time such as heaters.  If its
not a tight contact in the wall, then it acts as a resistance and produces
heat at the connection.  Also clean off any corrosion/tarnish.  Domestic 220
plugs are normally left in place (stoves, dryers) so don't have problems like
detachable theater plugs would.
scg
response 23 of 32: Mark Unseen   Feb 28 07:52 UTC 1998

Generally, if I need a company name and am not representing my employer or
any consulting clients, I just say that my business is called Stephen Gibbard.
I don't claim to be a corporation, and as long as I'm using my name no DBA
is needed.
keesan
response 24 of 32: Mark Unseen   Feb 28 17:29 UTC 1998

One place that sells dessicant for making your own double-glazed windows
refused to even send me info if I was not a company, but would send to any
company, no matter how window-unrelated.  It took a lot of persistence to get
them to even talk to me.  Another place sold us a 50-gal drum of teh major
ingredient of laundry detergent but had to ship it to a business address (we
borrowed one with a shipping dock) and make it out to a business (we told them
Ann Arbor Buying Club, which did not exist before or after).  They were
apparently afraid someone would hurt themselves with the detergent.
I still don't know how to order the dessicant, but may try through a friend
who does computer consulting and may still be incorporated.
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