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Subject: Stagecraft Digest #982
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For info, archives & UNSUBSCRIBE, see <http://stagecraft.theprices.net/>
---------------------------------------------------

Stagecraft Digest, Issue #982

 1. Re: Tesla coils
    by "Bill Nelson" <billn [at] peak.org>
 2. Re: fire systems and hazers/foggers
    by "Bill Nelson" <billn [at] peak.org>
 3. Re: Fireplace effect ideas?
    by "Bill Nelson" <billn [at] peak.org>
 4. Re: MiniMag Tailcap Switch
    by Bruce Purdy <bpurdy [at] rochester.rr.com>
 5. Re: Fireplace effect ideas
    by "Ken" <productionmanager [at] minnesotaballet.org>
 6. mini mag re fit
    by b Ricie <b_ricie [at] yahoo.com>
 7. Re: in search of dry ice fogger
    by "Jon Ares" <jonares [at] hevanet.com>
 8. Re: ETCNet2 compatability with LAN
    by Steve Bailey <Bailey [at] BrooklynCenter.com>
 9. Re: Projector position
    by "Laura McMeley" <lmcmeley [at] msn.com>
10. Re: mini mag re fit
    by "Jon Lagerquist" <jon [at] lagerquist.com>
11. Re: mini mag re fit
    by Jerry Durand <jdurand [at] interstellar.com>
12. Re: Jacobs ladder
    by "Paul Guncheon" <paul.guncheon [at] hawaiiantel.net>
13. Re: Emergency Lights for my new space
    by FrankWood95 [at] aol.com
14. Re: Snowballs
    by "Paul Guncheon" <paul.guncheon [at] hawaiiantel.net>
15. Re: Arghh...
    by "Paul Guncheon" <paul.guncheon [at] hawaiiantel.net>
16. Re: Emergency Lights for my new space
    by Jerry Durand <jdurand [at] interstellar.com>
17. Re: fire systems and hazers/foggers 
    by CB <psyd [at] cox.net>
18. Re: Sound "Proof" Curtain/wall/door?
    by CB <psyd [at] cox.net>
19. Re: Jacobs ladder
    by CB <psyd [at] cox.net>
20. Re: fire systems and hazers/foggers
    by Jerry Durand <jdurand [at] interstellar.com>
21. Re: Jacobs ladder
    by "Bill Nelson" <billn [at] peak.org>
22. Job Posting - Electrics Apprentice
    by "David Bowman" <dmbowman [at] syr.edu>
23. Re: Fireplace effect ideas?
    by "Ray-Pfeifer, Merel" <raypf1mg [at] cmich.edu>
24. Re: fire systems and hazers/foggers
    by "Nathan Kahn" <nathan.kahn [at] gmail.com>

*** Please update the subject line of your reply to use the subject
*** line of the message you are replying to! Please only reply to
*** one message subject in each reply.

----------------------------------------------------------------------

Message-ID: <1304.205.215.255.52.1160734418.squirrel [at] webmail.peak.org>
In-Reply-To: <list-36249721 [at] prxy.net>
References: <list-36190131 [at] prxy.net> <list-36221729 [at] prxy.net>
    <list-36233554 [at] prxy.net> <list-36249721 [at] prxy.net>
Date: Fri, 13 Oct 2006 03:13:38 -0700 (PDT)
Subject: Re: Tesla coils
From: "Bill Nelson" <billn [at] peak.org>

>> I have found plain steel, copper clad steel, bronze and aluminum welding
>> rods at the welding supplier. None of these had a flux coating. There are
>> probably other types as well. Some are for brazing, others are for
>> welding.
>>
>> I have used all the above, at one time or another, as the electrodes for
>> Jacob's ladders.
>
> 	So in your experience, have some worked better than others?
> Recommendations?

They all worked just fine. Remember that we are working with high voltage
and low current. A bit of voltage drop does not matter.

Both the bronze and the aluminum rods are the easiest to bend into the
desired shape.

Bill


------------------------------

Message-ID: <1315.205.215.255.52.1160735297.squirrel [at] webmail.peak.org>
In-Reply-To: <list-36246686 [at] prxy.net>
References: <list-36232571 [at] prxy.net> <list-36244707 [at] prxy.net> 
    <list-36245700 [at] prxy.net> <list-36246686 [at] prxy.net>
Date: Fri, 13 Oct 2006 03:28:17 -0700 (PDT)
Subject: Re: fire systems and hazers/foggers
From: "Bill Nelson" <billn [at] peak.org>

> Just had the fire department visit a few times last week.  They
> finally let us turn the system off, but the fire marshall will not
> allow us to switch to heat sensors... must stay with the sensitive
> particulate sensors.  Last year we used haze for four or five hours
> straight without issue.  This year we would run it for five miutes and
> off goes the alarm, and in comes the Fire Department with a bill.

There is a good chance that the detectors now have a layer of dust/grime
that is making them more prone to triggering. I don't know if they can
have the gap blown out or cleaned - or if it would require replacing them.

You might ask the fire marshal whether you could switch to an ionization
sensor. The sensor works for active flames, it is not good for smoldering
fires.

Or maybe you can use two sets of sensors in the stage area - turning off
the  particulate sensors when you will be using fog/haze.

Bill


------------------------------

Message-ID: <1319.205.215.255.52.1160735784.squirrel [at] webmail.peak.org>
In-Reply-To: <list-36246305 [at] prxy.net>
References: <list-36237145 [at] prxy.net> <list-36246305 [at] prxy.net>
Date: Fri, 13 Oct 2006 03:36:24 -0700 (PDT)
Subject: Re: Fireplace effect ideas?
From: "Bill Nelson" <billn [at] peak.org>

> embers/coals, and possibly a fan with silk scraps for the flames. What
> we are *really* still looking for is a light effect to project onto the
> back wall of the fireplace that looks like flames leaping up, but the
> opening itself is quite shallow. The set designer suggested a "rolling
> log" or something that would project flickering flames on the back wall.

If you look in a real fireplace, you will see that there are no patterns
on the walls, just fairly uniformly distributed flickering light.

The rolling log is for when you want it to appear that the person is
looking at the flames themselves. Your silk accomplishes that, if you
light it correctly.

Bill


------------------------------

In-Reply-To: <list-36279200 [at] prxy.net>
References: <list-36279200 [at] prxy.net>
Message-Id: <335A9279-93F1-4968-8D81-5BF6C6BEF692 [at] rochester.rr.com>
From: Bruce Purdy <bpurdy [at] rochester.rr.com>
Subject: Re: MiniMag Tailcap Switch
Date: Fri, 13 Oct 2006 07:43:45 -0400


On 13 Oct 2006, at 01:45, Andy Leviss wrote:

> Just thought I'd pass it on--finally a beefy tailcap switch that  
> doesn't
> snag in my holster! Not perfect, but almost...

	Thanks for the reminder to send this update:

	On 24th September I reported that I bought the LED conversion kit at  
Lowes (Nite Eys brand?). I have found I love the LED head. I was  
concerned about losing the focus-ability, but to be honest it hasn't  
bothered me much at all.

	As for the tail-cap, it wore out last week - after only two weeks!  
Thank goodness I saved the old parts. Perhaps I should look into  
TerraLux, but if I can't just pick it up at a local shop - well I'm  
lazy that way.

Bruce
____________________
Bruce Purdy
Technical Director
Smith Opera House




------------------------------

Message-ID: <000d01c6eed5$9b0ad160$6901a8c0 [at] MONORAIL>
From: "Ken" <productionmanager [at] minnesotaballet.org>
References: <list-36288392 [at] prxy.net>
Subject: Re: Fireplace effect ideas
Date: Fri, 13 Oct 2006 09:40:50 -0500

hey Dre,

I doubt your set designers idea of the rolling log will be bright enough for 
any visable reflected effect. Those rolling logs are really only good to 
look at, not reflect off of a back wall, even more so with your 7' x 6' wide 
opening.

when I built my fireplace for our Cinderella I was able to get a local 
fireplace store to donate some supplies. They now have some fake flames that 
are produced between two layers of glass that look really good! I don't know 
how they do it, but again, your size will be too big for this.
I would think your best bet is to go with a special effect light, but that 
might be a budget issue. (around $90 - $120)
Something like this?

http://www.centerstagelighting.com/cgi-bin/online/webapi.cgi?sc=010&pid=blaze&mt=1

But really, wouldn't the light reflection from the silk flames be enough? 
(depending on how many you use?)

Kenneth Pogin
Tour Manager
Minnesota Ballet 


------------------------------

Message-ID: <20061013145323.15267.qmail [at] web50611.mail.yahoo.com>
Date: Fri, 13 Oct 2006 07:53:23 -0700 (PDT)
From: b Ricie <b_ricie [at] yahoo.com>
Subject: mini mag re fit
In-Reply-To: <list-36288392 [at] prxy.net>


A while back, someone mentioned how they were not
happy with the new LED re-fit because it was not
focus-able. That would be the three light LED refit.
Recently I saw a one light LED re-fit that was
focus-able. Not quit as bright as the 3 LED, but ya
got the focus back!

* it has been 2 weeks since my last flashlight
purchase, yet I still feel like I live in the darkness*

Brian Rice 
508-685-0716
b_ricie [at] yahoo.com
"Blessed are the cracked: For it is they who let in the 
light."

__________________________________________________
Do You Yahoo!?
Tired of spam?  Yahoo! Mail has the best spam protection around 
http://mail.yahoo.com 

------------------------------

Message-ID: <003101c6eed9$078071d0$0400000a [at] BRUTUS>
From: "Jon Ares" <jonares [at] hevanet.com>
References: <list-36280123 [at] prxy.net>
Subject: Re: in search of dry ice fogger
Date: Fri, 13 Oct 2006 08:05:32 -0700

> I was more on the legit side, but I was surrounded by the puppets and
> props from those shows at their shop on the NE corner of Vineland Ave
> and Sherman Way, across the street from the Burbank airport.

Speaking of...  is it just me, or does Craig Bierko, now on Boston Legal, 
look like a human Sid & Marty Kroft puppet??  I think it's that big square 
jaw hinged to the back of his head.  The mutton chop-like burns also give a 
real 70s vibe to the look - but I think it's that Bierko-Smirk (grimace?) 
that definitely makes it look like that giant foam head is operated by a 
hand inside.

     - Jon Ares
www.hevanet.com/acreative 


------------------------------

Message-ID: <15134DE1EA20CF4BA1F473FADAC653AC5DAA43 [at] cassini.BrooklynCollege.local>
From: Steve Bailey <Bailey [at] BrooklynCenter.com>
Subject: RE: ETCNet2 compatability with LAN
Date: Fri, 13 Oct 2006 11:44:17 -0400

 

  _____  

From: Jonathan Zitelman [mailto:jzstagecraft [at] gmail.com]


----------------------------------------------- 

The entire campus where I work has a wireless network in place.  The 
auditorium is included in this so students can use their laptops 
during lectures, etc.  With the addition of a WRFU and its wireless 
access point I am curious as to what, if any, problems this could 
create?  With computers having the ability to connect to multiple 
networks at the same time now, is there a possible clashing of the 
ETCNet2 system with the school's LAN? From the other angle, could the 
wireless access point already connected to the LAN be used in 
connection with the WRFU as long as the ETCNet2 is connected to that 
access point? 

The largest problem I can foresee is unauthorized access into the ETC 
system.  This could be controlled with the proper safeguards in place. 
 Are there any other issues that might arise?  Is this type of 
connection even possible? 

I'd appreciate any feedback from the list from those who have run into 
this issue or actually tried setting this type of connection up. 

-Jonathan Zitelman ? Technical Director 
Texas Lutheran University 

 

Jonathan

I'll share some info as given to me by David Fox of ETC concerning Net2 WiFi setup and operation.

1) You don't ever want your Net2 system as part of any other LAN.  It needs to be a separate system in order to maintain positive control of the network functionality.  Do you want ITS shutting down or re-configuring the system on a Sat nite when they think nobody else is on campus - but on a nite when you have an event ?.

2) The Net2 system requires specific IP addressing and subnet gateway configuration in order for a computer to be able to access the net.  The computer doing the accessing also needs specific software in order to be able to do anything - such as Net2 config editor, Emphasis/Obsession Virtual Facepanel, etc...  Without the correct network settings AND the software, there's not much to access.  Thus, a Net2 WiFi system can operate happily alongside a standard dynamic WiFi system without any real concern about someone "discovering" the Net2 enviroment and mucking with it.  

Steve Bailey

Brooklyn College

 

 

 

 

 

 


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M?WB!>Q#/8C90AN'T`7E [at] ;OTW(&\-D0P0>N$<(6 [at] 1-Z#\;7`/0) [at]  [at] 2``XP._$
M\&C?[%)[4YDQ:$+=0#_3O]3/O]7?UN_7_]D/VA^Y*S+<`.<V0MVZ#`!Q=:-Q
M#%#J8"MX0>Z08S=P4./09&3?.`%HP!L"TO&&`&+GT<\ [at] _WAQ[)`-H^Z3TV/D
M^#?AX]'_1[#R\7B`Y7/CLFCASX(,=?_GE>DOZC]&CN;"!%7<8.[F?PQT`//R
M,!T`XR3_Q\Y [at] 9O_G\,XBY0H$^=Q [at] >*+Q4N\`?_-`A [at] "BX!JB&]/N9& [at] P9'L9
MX#?P+!N0\O`=,&C`<]PO3P>P`,)H$5:C<(:2;]!P2O'[,*C [at] ;!%0&^!C_BX4
M``:?!Z]<:](P.-'S<?MYTD>P<J."Y\>'91PPW]#>1.\4#.414%?#)QPP\;#_
M66$/P [at] 5W%"\5/T:.\Q`14/_CX-'IWA0WHM,D.$!90' [at] 0_FF&T0N0:!`90-!0
MX\/ZT/?2\$I1W%!Y.*!9 [at] ``P(`K_2/(78E [at] B_S"C,=$U!1$78M?.8F [at] 0.$`B
M$0!S1["N<?V'H2)YP]VS:&#00'IQ]7+[TN(;46N'HDCS20`</QU/_T:,]=_V
M[_?_^0_Z'_LO_#]MN3I3>(![<4+ET&CP>?\M7RYO+W\PCS&?,J\SO[DZLD)(
M [at] &]KAM!*L$-(DOQG939/-U\X;SE_.H\[G_\\K[D_*K\KS[QO0!]!+T=?_T-/
M1%]%;T9_1X](GTFO2K__2\],WTWO3O]0#U$?6!]3/_]43U5?5F]7?UB/69]:
MKUN__US/7=]>[U__80]B'VA/9#__94]F7V=O;F]ICVJ?:Z]LO_]MSV[?;^]P
M_W(/<Q]T+W4_OW9/=U]X;WZ?>H^G-3!]43`O1$E6L%^$GV<U0:JQ+T)/1%E[
M#3)"-Z_A2%1-3'L`?0&,```>`'```0```!\```!%5$-.970R(&-O;7!A=&%B
M:6QI='D [at] =VET:"!,04X``!X`1Q`!````#P```&UE<W-A9V4O<F9C.#(R```#
M`"8```````,`- [at] ```````P#>/Z]O```#`/$_"00```,`_3_D!````P!V0/__
M__\+`/(0`0```!X`\Q`!````*0```%)%)3-!($540TYE=#( [at] 8V]M<&%T86)I
M;&ET>2!W:71H($Q!3BY%34P`````"P#V$``````+`/00``````L`]1``````
M` [at] %'``$````Z````8SU54SMA/2`[<#U"<F]O:VQY;B!#;VQL96=E.VP]0T%3
M4TE.22TP-C$P,3,Q-30T,3=:+34V,3DS````` [at] 'Y/P$```!3`````````-RG
M0,C`0A`:M+D(`"LOX8(!`````````"]//4)23T]+3%E.($-/3$Q%1T4O3U4]
M0D-.150O0TX]4D5#25!)14Y44R]#3CU"04E,15E35```' [at] #X/P$````-````
M4W1E=F4 [at] 0F%I;&5Y`````!X`.$`!````"0```$)!24Q%65-4``````(!^S\!
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M3B!#3TQ,14=%+T]5/4)#3D54+T-./5)%0TE0245.5%,O0TX]0D%)3$594U0`
M`!X`^C\!````#0```%-T979E($)A:6QE>0`````>`#E``0````D```!"04E,
M15E35`````!```<PH;\Z-=WNQ [at] %``` [at] P5,S,<M[NQ [at] $>`#T``0````4```!2
M13H [at] `````!X`'0X!````'P```$540TYE=#( [at] 8V]M<&%T86)I;&ET>2!W:71H
M($Q!3 [at] ``' [at] `U$`$```!'````/#$U,3,T1$4Q14$R,$-&-$)!,48T-S-&041!
M0S8U,T%#-41!030S0&-A<W-I;FDN0G)O;VML>6Y#;VQL96=E+FQO8V%L/ [at] ``
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M````' [at] `($`$```!E````1E)/33I*3TY!5$A!3EI)5$5,34%.34%)3%1/.DI:
M4U1!1T5#4D%&5$!'34%)3$-/32TM+2TM+2TM+2TM+2TM+2TM+2TM+2TM+2TM
M+2TM+2TM+2TM+2TM+2TM+2TM+2TM5$A%10`````"`7\``0```$<````\,34Q
M,S1$13%%03(P0T8T0D$Q1C0W,T9!1$%#-C4S04,U1$%!-#-`8V%S<VEN:2Y"
9<F]O:VQY;D-O;&QE9V4N;&]C86P^```)W0==
`
end

------------------------------

Message-ID: <BAY109-F297CA4A785457CCED4FA91DF0A0 [at] phx.gbl>
In-Reply-To: <list-35033091 [at] prxy.net>
From: "Laura McMeley" <lmcmeley [at] msn.com>
Subject: Re: Projector position
Date: Fri, 13 Oct 2006 11:22:29 -0500

Thanks for the tips on this issue. It turned out that the director couldn't 
find the image he wanted to project, so we ended up going with a gobo in the 
end. I'm sure this information will come in handy for the future sometime 
though.

Laura McMeley
LD, Dallas TX
972-333-5016
www.geocities.com/lmcmeley/


>From: Dorian Kelly <dorian [at] essex.ac.uk>
>Reply-To: "Stagecraft" <stagecraft [at] theatrical.net>
>To: "Stagecraft" <stagecraft [at] theatrical.net>
>Subject: Re: Projector position
>Date: Mon, 18 Sep 2006 15:00:38 +0100
>
>For info, archives & UNSUBSCRIBE, see <http://stagecraft.theprices.net/>
>---------------------------------------------------
>
>>For info, archives & UNSUBSCRIBE, see <http://stagecraft.theprices.net/>
>>---------------------------------------------------
>>
>>>  I'm considering options for projecting images on the floor of a thrust
>>>  stage. Does anyone know if it is possible to mount a projector on it's
>>>  side,
>>>  so it projects straight down. Will it create heat or other problems 
>>>with
>>>  the
>>>  filament of the lamp? I have also thought of mounting the projector in 
>>>the
>>>  usual upright position and using a mirror to redirect the image. Has
>>  > anybody else tried this? Any other ideas?
>
>
>No the (very very) expensive lamp is likely to burn out prematurely, 
>usually at an embarrassing time , always use diverter mirrors and there 
>will be no tears before bedtime. Remember to flip the image if using one 
>mirror.
>
>dk



------------------------------

From: "Jon Lagerquist" <jon [at] lagerquist.com>
Date: Fri, 13 Oct 2006 09:52:56 -0700
Subject: Re: mini mag re fit
Reply-to: jon [at] lagerquist.com
Message-ID: <452F61F8.20436.BBCE163 [at] jon.lagerquist.com>
In-reply-to: <list-36301936 [at] prxy.net>
References: <list-36288392 [at] prxy.net>

That could be:

http://www.tek-tite.com/src/products.php?c=1055
or
http://www.terralux.biz/products/TLE-20page.php

> Recently I saw a one light LED re-fit that was
> focus-able. Not quit as bright as the 3 LED, but ya
> got the focus back!

Jon Lagerquist


------------------------------

Date: Fri, 13 Oct 2006 10:06:49 -0700
From: Jerry Durand <jdurand [at] interstellar.com>
Subject: Re: mini mag re fit
In-reply-to: <list-36301936 [at] prxy.net>
Message-id: <7.0.1.0.0.20061013100431.01fb8c18 [at] interstellar.com>
References: <list-36288392 [at] prxy.net> <list-36301936 [at] prxy.net>

Not quite flashlights, but while reading this thread I just noticed 
that one of our suppliers now has reflector/lens kits for the 
high-power white LEDs.  Could be useful in some set designs.

http://www.ledsupply.com/led-optics.php

The sell the LEDs, too.

-- 
Jerry Durand, Durand Interstellar, Inc.  www.interstellar.com
219 Oak Wood Way, Los Gatos, California 95032-2523 USA
tel: +1 408 356-3886, USA toll free: 1 866 356-3886
Skype:  jerrydurand


------------------------------

Message-ID: <001701c6eeef$e9e6f6a0$0202a8c0 [at] HUNKACRAP>
From: "Paul Guncheon" <paul.guncheon [at] hawaiiantel.net>
References: <list-36288392 [at] prxy.net>
Subject: Re: Jacobs ladder
Date: Fri, 13 Oct 2006 07:49:15 -1000

<<The only time I built one of these was back in High School in the
70's, and I used straightened coat hangers. I attached them directly
to the bolts on the transformer's outputs.>>

My neon transformers not have posts but a cable extending from the case...
so I have  had to attach the electrodes to a base. Perhaps if I attach them
to some sort of metal bracket which will place the arc further from the base
material?

The next time I build one (Heaven knows when that will be) I'll try that.

Laters,

Paul

"Ask 'Chris' Chris how to wrap up that cable" said Tom coyly.



------------------------------

From: FrankWood95 [at] aol.com
Message-ID: <c03.6b1b849.32612cb6 [at] aol.com>
Date: Fri, 13 Oct 2006 13:53:58 EDT
Subject: Re: Emergency Lights for my new space

In a message dated 13/10/06 03:56:59 GMT Daylight Time, 
mheinicke [at] sbcglobal.net writes:

> I believe that the emergency lights are on a seperate
>  breaker panel that is fed by either the mains or the
>  generator, depending on the situation. A transfer
>  switch automatically starts the generator and powers
>  that panel from the generator until it runs out of
>  fuel or the power comes back on. Of course that
>  assumes that the transfer switch is installed and
>  programmed correctly, which is another story.  If we
>  need to replace tubes or do any other maintenance work
>  we turn off the fixtures at the breaker after the
>  transfer switch.

You would be wise to check out the operation of the generator on a regular 
basis. I once did some work in an emergency radio studio centre, built in the 
early sixties when the cold war was at its height. It was designed to be 
bomb-proof, and had two big diesels for power generation.

Bomb proof it may have been: time proof, no. Starting the diesels could take 
twenty minutes, and after half an hour running, they overheated and shut down. 
I shall not post the comments of the servicec manager.

It was buried under our training school, with a classroom block on top of it. 
When they were building this, they needed to cut away a section of parapet to 
afford access. A local builder came to do this, and attacked it with a pick. 
No joy. He went away, and came back with a pneumatic drill. No joy, again. 
Eventually, we sent for a specialist company with diamond saws.


Frank Wood

------------------------------

Message-ID: <001b01c6eef0$b2420270$0202a8c0 [at] HUNKACRAP>
From: "Paul Guncheon" <paul.guncheon [at] hawaiiantel.net>
References: <list-36288392 [at] prxy.net>
Subject: Re: Snowballs
Date: Fri, 13 Oct 2006 07:54:43 -1000

<<> I'm really liking the sound of the polymer snow - it sounds as if
> it's based onmaterial similar to what's used as for "hydrogel" soil
> additives (add water to tiny crystals, soak and *poof* - you get
> big, clear jelly-fied cubes-o'-water that slow moisture loss from
> your potted plants).

If I'm not mistaken, it's also the stuff used inside disposable
diapers.>>

I've fooled with the stuff inside disposable diapers... it resembles "slush"
when wet. I don't think it will "pack" into snowballs.

<<Although obviously that particular stuff shouldn't be scrunched up into
a ball and thrown at people if it's been soiled.>>

And why not?


Laters,

Paul

  "The radio reception is much better now," said Tom ecstatically.



------------------------------

Message-ID: <001301c6eeee$e2e0d390$0202a8c0 [at] HUNKACRAP>
From: "Paul Guncheon" <paul.guncheon [at] hawaiiantel.net>
References: <list-36288392 [at] prxy.net>
Subject: Re: Arghh...
Date: Fri, 13 Oct 2006 07:41:58 -1000

<<Subject: Re: Barb Wire
Date: Thu, 12 Oct 2006 12:29:28 -0600

Bloody good, that one.

----- Original Message ----- 
From: "Paul Guncheon" <paul.guncheon [at] hawaiiantel.net>
 
> "You didn't mean 'EYAHHH', you meant 'ARGHH' ", was Tom's argument.
>>

Mahalo... I wrote that one my very own self.

Aloha,

Paul

"Bruce can never remember his lines" said Tom promptly.


------------------------------

Date: Fri, 13 Oct 2006 11:04:27 -0700
From: Jerry Durand <jdurand [at] interstellar.com>
Subject: Re: Emergency Lights for my new space
In-reply-to: <list-36311324 [at] prxy.net>
Message-id: <7.0.1.0.0.20061013105907.01fb9828 [at] interstellar.com>
References: <list-36311324 [at] prxy.net>

At 10:53 AM 10/13/2006, FrankWood95 [at] aol.com wrote:
>You would be wise to check out the operation of the generator on a regular
>basis. I once did some work in an emergency radio studio centre, built in the
>early sixties when the cold war was at its height. It was designed to be
>bomb-proof, and had two big diesels for power generation.

Back in 1989 when we had that little shakeup here in California, a 
large LARGE company had backup generators.  They had been tested 
monthly and always worked.  When the 'quake hit, the generators 
started right on cue, the transfer switch toggled, and the motor 
shafts sheared off.  They'd never been tested under load.

Also, a local radio station with it's transmitter/antenna AT the 
epicenter had a couple of guys driving up to it right at the time of 
the 'quake.  Once their truck was back on the ground (the mountain 
had grown a few feet instantly and tossed the truck in the air) they 
ran into the transmitter room to find the transmitter laying on it's 
side burning while the generator (which was bolted down) was running 
fine feeding the fire.


-- 
Jerry Durand, Durand Interstellar, Inc.  www.interstellar.com
219 Oak Wood Way, Los Gatos, California 95032-2523 USA
tel: +1 408 356-3886, USA toll free: 1 866 356-3886
Skype:  jerrydurand


------------------------------

Message-Id: <3.0.6.32.20061013103903.00c4a978 [at] pop.west.cox.net>
Date: Fri, 13 Oct 2006 10:39:03
From: CB <psyd [at] cox.net>
Subject: Re: fire systems and hazers/foggers 

>the fire marshall will not
>allow us to switch to heat sensors... 
>... This year we would run it for five miutes and
>off goes the alarm, and in comes the Fire Department with a bill.

It seems to me that particulate sensors are innappropriate where there are
regularly expected to be particulates in the air; like, f'rinstance, the
shop.  Or the theatre, maybe.  Heat sensors are what's used in place of
those when particlate sensors are considered innappropriate.  I'd argue the
bill as long as they insist that you use a particlate sensor in a place
where you absolutely know that there will be airborne particulate matter on
a fairly regular basis that is not generated by a fire.
				Chris "Chris" Babbie
				Location Sound
				MON AZ

Delete key training and post trimming done by appointment.  Rates
negotiable, will trade for typing lessons/ADD treatment...

------------------------------

Message-Id: <3.0.6.32.20061013104811.00c4a978 [at] pop.west.cox.net>
Date: Fri, 13 Oct 2006 10:48:11
From: CB <psyd [at] cox.net>
Subject: Re: Sound "Proof" Curtain/wall/door?

>>     Try being in a Theatre with a very loud klaxon horn type fire siren  
>Let's see:
>Railroad tracks, just across the parking lot

OK, OK... these things are tough, and I used to work a black box that had
Congress (westbound main drag through downtown Tucson) twelve feet from the
booth and and alley out the back door, a restaurant on one side with a club
in the basement and an art gallery (you'd think that they'd be quiet,
wouldn't you?  This was the era of installations and performance art...) on
the other.  All of this is what you get when you don't get to pick. OTOH,
none of it fell under the control of the theatre.  The OP was suggesting
the he do the foot-shooting himself, and as he had some control, I
suggested that he avoid all such problems, and postings like these in his
future...
				Chris "Chris" Babbie
				Location Sound
				MON AZ

Delete key training and post trimming done by appointment.  Rates
negotiable, will trade for typing lessons/ADD treatment...

------------------------------

Message-Id: <3.0.6.32.20061013105104.00c4a978 [at] pop.west.cox.net>
Date: Fri, 13 Oct 2006 10:51:04
From: CB <psyd [at] cox.net>
Subject: Re: Jacobs ladder

> What have y'all used for a base for the wires.

I've jsut used the txfmr itself.  Attach the wires to each end, and bend
'em into shape.
				Chris "Chris" Babbie
				Location Sound
				MON AZ

Delete key training and post trimming done by appointment.  Rates
negotiable, will trade for typing lessons/ADD treatment...

------------------------------

Date: Fri, 13 Oct 2006 11:22:59 -0700
From: Jerry Durand <jdurand [at] interstellar.com>
Subject: Re: fire systems and hazers/foggers
In-reply-to: <list-36312215 [at] prxy.net>
Message-id: <7.0.1.0.0.20061013111244.01fb77a0 [at] interstellar.com>
References: <list-36312215 [at] prxy.net>

At 03:39 AM 10/13/2006, CB wrote:
>It seems to me that particulate sensors are innappropriate where there are
>regularly expected to be particulates in the air; like, f'rinstance, the
>shop.  Or the theatre, maybe.  Heat sensors are what's used in place of
>those when particlate sensors are considered innappropriate.  I'd argue the
>bill as long as they insist that you use a particlate sensor in a place
>where you absolutely know that there will be airborne particulate matter on
>a fairly regular basis that is not generated by a fire.
>

Also, if you have a lot of dust in the air, ANY sensor is going to 
need regular cleaning.  I've never worked with the ones that just 
shoot a beam all the way across a room, but I presume the "eyes" 
would gather dust over some period of time, but not as fast as the 
screen on a regular sensor.

So far I know of the following types of fire sensors (I have 5 
different ones just in our home!), each is appropriate for a 
different application:

1.  Particulate:  shines beam of light through air, sensor at 90 
degrees to beam looks for reflection off smoke.

2.  Particulate:  shines beam of light through air, looks for sudden 
darkening or obstruction

3.  Ionization:  radioactive source ionizes air inside sensor and 
forces a small electrical current through the air, looking for 
changes.  These have an age limit as the radioactive source weakens 
(half life) and also are hazardous waste.

4.  Temperature:  set trip point, good for kitchens, fireplace rooms, workshops

5.  High-temperature:  higher fixed trip point for attics, garage, warehouse

6.  Rate of rise:  trips on rapid temperature rise

7.  Visual:  monitors red and green light in room.  If the ratio of 
red to green suddenly goes up, fire is assumed (used around engines, 
can detect an invisible explosion).

There's probably others.  Talk to your AHJ, insurance company, and 
local installers to see what's right.


-- 
Jerry Durand, Durand Interstellar, Inc.  www.interstellar.com
219 Oak Wood Way, Los Gatos, California 95032-2523 USA
tel: +1 408 356-3886, USA toll free: 1 866 356-3886
Skype:  jerrydurand


------------------------------

Message-ID: <3396.205.215.255.52.1160768940.squirrel [at] webmail.peak.org>
In-Reply-To: <list-36311096 [at] prxy.net>
References: <list-36288392 [at] prxy.net> <list-36311096 [at] prxy.net>
Date: Fri, 13 Oct 2006 12:49:00 -0700 (PDT)
Subject: Re: Jacobs ladder
From: "Bill Nelson" <billn [at] peak.org>

> My neon transformers not have posts but a cable extending from the case...
> so I have  had to attach the electrodes to a base. Perhaps if I attach
> them
> to some sort of metal bracket which will place the arc further from the
> base material?

Mount the electrodes on a piece of plexiglass, where the electode mounting
bolts are at least 2" away from any other conductive or semiconductive
material.

Bill


------------------------------

Message-Id: <s52fb8a9.073 [at] gwia203.syr.edu>
Date: Fri, 13 Oct 2006 16:02:26 -0400
From: "David Bowman" <dmbowman [at] syr.edu>
Subject: Job Posting - Electrics Apprentice

Greetings Gang,

My current apprentice (back for her 2nd year) has opted to take an AME
position in Florida, so I am in search of a replacement.  Basic details
are as follows:

Location: Syracuse Stage in Syracuse, NY (an AEA LORT-C professional
theatre in residence at Syracuse University)
Pay: $280/week (guaranteed) plus occasional OT (this will go up a bit
Jan 1)
Start Date: 10/30/06    End Date:  6/10/07
Benefits: 50% health, access to all Syracuse University resources
(library, gyms, email, etc....), staff comps, etc....
Main Duties: assist with hang, focus, and strike of shows in the
499-seat Archbold Theatre.  Run board and maintain lighting rig for all
performances.

Send resume with recommendations to:
Dave  Bowman, Master Electrician
Syracuse Stage
820 East Genesee Street
Syracuse, NY 13210
or
dmbowman [at] syr.edu 


Questions?  Feel free to email me and/or visit our website:
www.syracusestage.org 

Thanks!

dave B.


David M. Bowman
Syracuse Stage / SU Drama
Master Electrician / Adj. Professor
dmbowman [at] syr.edu

Dolor Temporarius... Gloria Aeterna....
Cicatrices Virgines Placent!

------------------------------

Date: Fri, 13 Oct 2006 17:01:13 -0400
Subject: Re: Fireplace effect ideas?
From: "Ray-Pfeifer, Merel" <raypf1mg [at] cmich.edu>
Message-ID: <C15576D9.7EB4%raypf1mg [at] cmich.edu>
In-Reply-To: <list-36290527 [at] prxy.net>

I always liked using the old "flash buttons" drop one into any fixture and
it will flash at irregular intervals.  Hook up several on a single dimmer
and get lots of variety without a lot of dimmers tied up.

They are a little hard to find but well worth the effort in my opinion.

Merel Ray-Pfeifer
TD
Cent. Mich. Univ.
Mt Pleasant, MI




On 10/13/06 6:36 AM, "Bill Nelson" <billn [at] peak.org> wrote:

> For info, archives & UNSUBSCRIBE, see <http://stagecraft.theprices.net/>
> ---------------------------------------------------
> 
>> embers/coals, and possibly a fan with silk scraps for the flames. What
>> we are *really* still looking for is a light effect to project onto the
>> back wall of the fireplace that looks like flames leaping up, but the
>> opening itself is quite shallow. The set designer suggested a "rolling
>> log" or something that would project flickering flames on the back wall.
> 
> If you look in a real fireplace, you will see that there are no patterns
> on the walls, just fairly uniformly distributed flickering light.
> 
> The rolling log is for when you want it to appear that the person is
> looking at the flames themselves. Your silk accomplishes that, if you
> light it correctly.
> 
> Bill
> 


------------------------------

Message-ID: <77fad3270610131412u498f4752ic86157cf7fc15211 [at] mail.gmail.com>
Date: Fri, 13 Oct 2006 17:12:26 -0400
From: "Nathan Kahn" <nathan.kahn [at] gmail.com>
Cc: klaue2 [at] gmail.com
Subject: Re: fire systems and hazers/foggers
In-Reply-To: <list-36223162 [at] prxy.net>
References: <list-36223162 [at] prxy.net>

>     I am borrowing a hazer from one of the other local theaters for
> one of our productions. The TD there says that I need to shut off our
> fire suppression system when running the hazer to avoid setting off
> alarms(evidently he has done it). We actually own a fogger and I can
> easily flood the stage/house without having the fire alarms go off.
> Does anyone have any reccommendations or experience in this area?


Perhaps he said this because haze droplets tend to last much longer
than fog droplets, and therefore will reach areas that fog doesn't.
For example, our local theatre has detectors at the very top of the
flyspace that will sometimes trigger when haze is used, but they never
trigger when fog is used.

Nathan

-- 
Look Solutions USA, Ltd.
Toll-Free: 1-800-426-4189
Email: usa [at] looksolutions.com
Web: www.fogspecs.com

------------------------------

End of Stagecraft Digest #982
*****************************