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Golborne Vintage Radio
Everything Vintage - radios, televisions, test gear and more
General Chat
Glass Audio Filter....?
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Glass Audio Filter....?
pwdrive
Senior Engineer in Charge
Posts: 7,416
Reputation:
13
Location: Cornwall
#1
26-07-2015, 01:14 PM
https://www.youtube.com/watch?v=FDtkfM2qaPY
Make of it what you will.
Lawrence.
http://www.gridwatch.templar.co.uk/index.php
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Alan Douglas
Rest in Peace
Posts: 378
Location: Cape Cod, Massachusetts
#2
26-07-2015, 04:19 PM
Otherwise known as a Helmholtz resonator. Neat trick.
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