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During the past week or so I have been working T32C with my K3/KPA500 combination. While operating RTTY at the 450-500 watt level, I have noticed, on many occasions after transmitting my call seeking a contact, a single clicking sound coming from the amplifier a second or two after key up. Does anyone have an explanation, or an idea, of what (why) this might be?
Doug, VE3VS
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