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Old 10th June 2009, 12:19 PM   #1
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Default atkinson transmission line

i have just finished building a replica of the chris rogers hi-fi world transmission line and would like to now tackle the atkinson design.i would greatly appreciate if anyone could supply me with the design details and the crossovers used.
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Old 11th June 2009, 01:47 AM   #2
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http://www.t-linespeakers.org/projects/jakob/index.html

but why? I'm sure there are better modern drivers and more scientifically based designs available today?
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Impedance varies with frequency, use impedance plots of your drivers and make crossover calculations using the actual impedance of the driver at the crossover frequency
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Old 11th June 2009, 03:33 AM   #3
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I have scans of the originalk article... don't know whether i have put them into a useful format yet.

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Old 11th June 2009, 08:39 AM   #4
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Default atkinson transmission line

In response to you query why build it, i guess i am old fashioned i like transmission lines in particular the complex carpentry involved. I originally built a pair of hi-fi answers back in the seventies and enjoyed the project but unfortunately had to part with the speakers over 10 years ago (marriage settlement she refused to let me have them they were that good).This is why i built them again. I also do not have the time available to go through the process of matching speakers and the designing new crossovers. Thank you very much for the info you sent but when i tried to read the text and dimensions they were difficult to read.Any suggestions.
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Old 11th June 2009, 10:46 PM   #5
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Turns out i only scanned the plans... i have quickly assembled the work in progress to a pdf that hopefully you will find more readable.

http://p10hifi.net/planet10/TLS/down...n-TL-plans.pdf [2.5 MB]

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Old 11th June 2009, 10:52 PM   #6
Andy G is offline Andy G  Australia
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Quote:
Originally posted by PeteMcK
http://www.t-linespeakers.org/projects/jakob/index.html

but why? I'm sure there are better modern drivers and more scientifically based designs available today?

Any idea what that green bit is all about ?
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Old 11th June 2009, 11:00 PM   #7
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Tony, I'd make sure you can get the drivers before you start making sawdust...
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Impedance varies with frequency, use impedance plots of your drivers and make crossover calculations using the actual impedance of the driver at the crossover frequency
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Old 11th June 2009, 11:14 PM   #8
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Quote:
Originally posted by Andy G
Any idea what that green bit is all about ?
That is the midrange enclosure

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Old 12th June 2009, 01:08 AM   #9
Andy G is offline Andy G  Australia
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Quote:
Originally posted by planet10


That is the midrange enclosure

dave

In the first picture, it looked like it was open just behind the woofer, which I really thought was very odd, but I see from the pdf's that were posted, that it isn't. At least , I sure hope it isn't.

Either way, it seems pretty odd to have a mid enclosure that blocks half the bass TL !!!
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Old 12th June 2009, 07:57 AM   #10
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Default atkinson transmission line

Dave Thank you for the PDF files they are great. Would you have any ideas where i could obtain crossover details ?. I have a spare pair of B139 drivers plus a couple of celestion HF1300 mid range drivers, the rest i will obtain from ebay and ship to australia. I did this with the speakers i have just completed and it was not expensive if you know the tricks on how to ship.

Tony
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