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Effects of weather

3/9/1997 12:53 AM
T.M. DeJohn
Effects of weather
I'm a working musician (guitarist), and would like to know what effect leaving equipment out in the weather (Pittsburgh winter) has on tube amps, power amps etc. I get lazy and don't always feel like unloading the equipment when it has to be reloaded in a day or so.
3/9/1997 12:30 AM
Never underestimate mother nature. She trenches rivers  
and tears down mountains.  
The temperature coefficient is the biggest factor with  
music and stage gear. There is also the issue of moisture.  
If you leave a speaker cabinet out in the cold after its  
been in a hot room for a while it will suffer extremes of  
hot and cold and if given enough time this may even cause  
condensation. That condensation is a redistribution of  
moisture from where it should be to where it shouldn't.  
your speaker cones become weak and brittle and your cores  
and frames become oxidised (oxidisation bad). Contacts  
oxidise and you risk running your gear into an open load  
(open load bad). Same with microphones. The very worst  
things you can do is to take very cold gear out of a truck  
where its been "wintering over" and start pounding the  
coils and diaphrams with club playing pressure. There are  
alot of things to avoid. You never want to take a tube amp  
that was just on and roll it out into the near freezing air  
over bumpy pavement. Never leave guitars out in the cold.  
Wood is especially sensitive to temperature and moisture.  
I have had two guitars necks warp from extreme climate  
changes. One was an acoustic which was clamped and heated  
to correct it. But it warped again soon after and I ended up  
giving it away. The other was a neck through design electric  
which no longer allows enough neck relief even with the truss  
rod completely losened. This was one of my favorite guitars.  
Oh well, live and learn.  
I was in a band that played until 2:00am every Friday. I  
also had a day job on Saturday starting at 8:00am. I was  
also the only guy in the band with a truck. So I understand  
your situation. It would have been nice to throw the stuff  
into my truck, dirve straight home, and get an extra hour  
of much needed sleep. Its not a matter of "lazy". It just  
sucks. But you gotta take care of that gear. As we learn in  
these situations, its too hard to earn the money to replace  
it very often. Chuck  
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3/11/1997 5:05 PM
David Axt

As long as we're tell'n horror stories....  
I once left my P-bass out in the car on a very cold midwest winter. Stupid move! The next day I noticed that the finish on the body was cracked. Luckly it could be refinished...but that lowered the value and cost me needless $$. Take your instrument inside! If you wouldn't leave your pet or children in that kind of weather, don't leave your instruments or amps in harsh weather!
3/11/1997 7:27 PM
Many years ago I had a beautiful Mapleglo Rickenbacker that I left out in  
the cold once, and that gorgeous finish looked like a broken windshield after  
that exposure.
3/12/1997 12:38 AM
John Martin

I think it was Gerald Weber who said "don't keep your amp anywhere you wouldn't sleep"  
3/21/1997 9:49 PM
Ken Lewellen

I think what John thinks.  
Ken Lewellen
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