I saw some nice Trike pictures in the forum here so I thought I post the articles that describe the construction dating no less than 50 years back in time
There are also other uses for this. I have seen quater wave pipes used as room resonance traps. The folding as described reduce the external length of the pipe as well as lower the Q.
There are also other uses for this. I have seen quater wave pipes used as room resonance traps. The folding as described reduce the external length of the pipe as well as lower the Q.
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