Note: You are viewing an old revision of this page. View the current version.
A _microphonic tube_ is one whose electrical characteristics are affected by mechanical vibrations. (This is a flaw.)
If you lightly tap on a microphonic, while your organ and/or amp is on, you'll probably be able to hear noises coming from your speaker.
Microphonic tubes can often a cause of feedback, buzzing noise, distortion or other bad sounds. If you find one, you should replace it.
The content of this page is Copyright (C) 2000, 2001, 2002 Geoffrey T. Dairiki and
the other authors of the content, whoever they may be.
This is free information and you are welcome redistribute it
under certain conditions; see
http://www.dairiki.org/HammondWiki/opl.html for details.
Absolutely no warrantee is made as to the correctness of
the information on this page.