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1. RE:[WriteLog] W5XD keyer question--PTT outputs not saturating. (score: 1): Author: "W. Wright, W5XD" <w5xd@writelog.com>; Date: Wed, 6 Oct 2004 12:16:24 -0000; After the very first production run of the keyer, the parts driving the PTT outputs (and CW outputs for that matter) were replaced. Both were photo-darlingtons, but the newer part was empirically sho; /archives//html/WriteLog/2004-10/msg00067.html (7,463 bytes)
2. RE: [WriteLog] W5XD keyer question--PTT outputs not saturating. (score: 1): Author: "Jim McDonald" <jim@n7us.net>; Date: Thu, 7 Oct 2004 04:26:39 -0700; I have a W5XD keyer that I am not using and would like to sell. It has the current optos and the current EPROM. It's in excellent condition and has the external analog speed control. I'd like $150 pl; /archives//html/WriteLog/2004-10/msg00078.html (8,380 bytes)
3. Re: [WriteLog] W5XD keyer question--PTT outputs not saturating. (score: 1): Author: Dennis Mowers <k5ya@gvtc.com>; Date: Fri, 08 Oct 2004 16:58:39 -0500; My XD Keyer is about 2 months old. It has the PS2501-2 opto isolator in the PTT circuits. The opto diode series resistor is 1.2K in the Keyer. I paralled a 330 ohm with the existing 1.2K's, and the P; /archives//html/WriteLog/2004-10/msg00100.html (7,594 bytes)

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