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Old 15th January 2004, 11:43 PM   #1
johnnyx is offline johnnyx  United Kingdom
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Join Date: Jan 2004
Location: manchester
Default Hi from a new guy

Hi Guys
This forum looks so good, I had to join. Long may it continue
I worked for a while as a test engineer for a pro audio company
until they merged and re-located down south
Now I do industrial electronics repairs, keeping the wheels of industry moving.
I read some threads about motional feedback loudspeakers, using dual voice-coil drive units. I did some work on this topic,
and I derived a simple formula which explains it's operation very
well. I designed a pair of subs using this method and they perform well. I still use them, but the last couple of years I've
been bogged down with computers. Ive got CAD stuff and Test & Measurement stuff on my computer, but never get round to using it. You've already given me the inspiration to to follow my love of music and audio, so thanks!
If anyone's interested in my work on motional feedback, I could
post it up.
Cheers
Johnnyx
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Old 16th January 2004, 06:28 AM   #2
Electrons are yellow and more is better!
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Welcome and you have come the best DIY forum in the world.
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Old 16th January 2004, 07:24 AM   #3
Shaun is offline Shaun  South Africa
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Hi, johnnyx

Welcome. Please share your knowledge with us. Where will you post your paper?

Regards
Shaun
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Old 17th January 2004, 01:05 AM   #4
johnnyx is offline johnnyx  United Kingdom
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Join Date: Jan 2004
Location: manchester
Default Posting Diagrams

I would like to post some diagrams for you, but I'm not sure about the size that would be best. I can convert Proteus schematics to a windows metafile, and then convert that to a gif, but how big is best? I dont need many colours. The metafile came out at 6MB, for a simple sketch
Iwill post at the end of the existing thread, where I saw the discussion, unless you suggest otherwise.
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Old 19th January 2004, 06:33 AM   #5
Shaun is offline Shaun  South Africa
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I think the largest allowable pic size is 100k. Dont' know the max for attachments, though (could be the same).
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