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Old 22nd March 2005, 01:45 PM   #1
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Default Mirror tube chassis

Hi!

I would like to ask if anyone has ever used a mirror as the top plate of the chassis.
I ask this because i have this neat idea for my tube preamp, but i'm still trying to find out how to cut the holes for the tubes (noval and octal) without breaking the glass...

Thank you for your help

Francisco
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Old 22nd March 2005, 05:46 PM   #2
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Er, sounds kinda brittle. Chrome polishes nicely y'know...

You can cut holes by forming a clay or putty dam around the hole, fill with abrasive grit and water (make a slurry) and use a copper tube to abrade the glass through. You'll want a drill press with a weight hanging on the handle, it'll take some time.

Tim
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Old 22nd March 2005, 06:14 PM   #3
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Tim, have you been reading those books on Bronze Age technology again?
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Old 23rd March 2005, 04:55 PM   #4
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Bronze age books? Heck, I've been recreating the age myself...

Wait, did they have propane in 3000BC?

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Old 24th March 2005, 12:36 PM   #5
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I realize you may have teh mirror around to play with and want to try, but.... the results will probably be less than desirable.

Sandblasting the holes is likely to work best. Simply because of the number of holes. This would also allow for venting the main holes as well. (surrounded by little vents) cover the entire mirror in a removable but solid ahdhesive sheeting of smoe sort, to prevent damage to the silvering layer.

yes, sandblasting would work excellently.

Also, there are MANY companies who sell mirrored sheets of temp grade palstic, both front and regualr surface mirrors. If this is an issue, there are many resellers of metal that is mirrored or chromed.

The sandblasting can be done. Ask some people in the area who do sanblasting of shapes in Mirrors and glass..
The hardware is realtively cheap, if you already have the compressor with the airflow rate. The ventilation, and the lung protection is CRITICAL. Specifically the lung protection

Have fun!
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Old 24th March 2005, 01:02 PM   #6
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I had an idea about making a chassis from glass.
It would have to be thick(and probably reinforced),to hold the weight of the transformers.I was thinking of like 5/8 plate glass,or something. Cutting it/getting it cut could be a pain,and likely expensive too.
But it would look soo cool!
Maybe even add an LED or two...(or maybe not..)
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