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1. PTT conection (score: 1): Author: arturo@unisol.virtual.ar.net (Arturo J. Gargarella); Date: Wed, 11 Dec 96 8:18:29 EST; Hi Tree I was trying the PTT conection with no luck. I made a circuit like for the keyer. Paralel port. The ground is the same than the keyer. Pin 16 to the 1K resistor and the resistor to the base o; /archives//html/TRLog/1996-12/msg00029.html (6,447 bytes)
2. PTT conection (score: 1): Author: tree@lady.axian.com (Larry Tyree); Date: Wed, 11 Dec 1996 09:16:40 -0800 (PST); This sounds right - when it is at zero volts, does your transmitter relay turn on? If not - you might find you actually have about .4 or .5 volts on the collector and that might be too much. You can; /archives//html/TRLog/1996-12/msg00031.html (6,717 bytes)

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