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1. [ct-user] LPT pinout (score: 1): Author: "poldo" <poldo98@alice.it>; Date: Thu, 8 Jan 2009 11:27:02 +0100; I use CT 9.72 For cw/keying my rig (negative grid block transmitter) via LPT port I need a 5 Volt relay switched by CT Could someone provide me with a pinout for switch the relay ? Thanks Ed IV3TQE _; /archives//html/CT-User/2009-01/msg00000.html (5,995 bytes)
2. Re: [ct-user] LPT pinout (score: 1): Author: Ed K1EP <k1ep.list@gmail.com>; Date: Thu, 08 Jan 2009 09:11:19 -0500; I don't know if a relay would fast enough to do CW keying. I would use a high voltage transistor or opto isolator such as the H11G1 which has a 100V BVceo. If that isn't high enough, there probably a; /archives//html/CT-User/2009-01/msg00001.html (7,631 bytes)

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