http://www.electronicstalk.com/news/bay/bay000.html Bartley Machine and Manufacturing Co news releases on Electronicstalk en-gb Copyright (C)2008 Pro-Talk Ltd. All rights reserved. Sat, 22 Nov 2008 08:00:00 UT Sat, 22 Nov 2008 08:00:00 UT http://www.pro-talk.com/images/protalklogo90.gif http://www.pro-talk.com/ 90 79 A new line of active bandpass filters, known as the "Ultra-Q filter", can solve critical communications issues. Wed, 12 Jan 2005 08:00:00 UT Bartley Machine and Manufacturing Co http://www.electronicstalk.com/news/bay/bay100.html