snip I have noted that the current drain is a little higher than the spec says so would like to know what other K1’s are drawing in real life
Mine on Rx is Ok at about 70mA with the backlight option fitted and set to high brightness On TX it’s a little high ( I think) 40m 5W @ 14v Supply Current =1.18Amps 40m 2W @ 14v Supply Current = 760mA snip Paul, the current draw at 5W is a little high but nothing to worry about. The current on my K1 varies around the one amp mark depending on the exact supply voltage and the SWR it is "seeing". If you are using the KAT1 and it matches your wire perfectly ie 1:1 SWR then the current should be 900mA at 14V. I use an external ATU and because I don't always take the trouble to match my wire perfectly the current creeps up above one amp for 5 Watts out. For most CW speeds I don't think the output transistor is bothered about a little more collector current, just don't leave the key down for long periods. If you just feel the side of the K1 case where the output transistor is bolted to (the case is the heat sink) you can feel if it is getting warm, most of the time I can barely sense any change in temp. One other thing to note is that if using an external tuner and the K1 sees a high SWR when you are tuning, I think it reduces it's output to protect itself and often I need to switch it off and on again after tuning to reset the K1"brain" otherwise it gets confused. It's not a problem. The K1 is my first and only rig and I love it. Hope you enjoy yours too. I'm often on 80m around 3558 in the evenings and I'll look out for you. Don't worry about the cw speed, I'll slow down to whatever you are comfortable with. 73's Martin M0KWV K1 #1534 Why not take a look at our Web site? http://www.simoncarves.com ************************************************************************* The information in this email and any attachments may contain privileged and/or confidential information intended solely for the use of the individual or entity to whom it is addressed. If the reader of this email is not the intended addressee, or the employee or agent responsible to deliver it to the addressee, you are hereby notified that any dissemination, distribution or copying of this communication is strictly prohibited. If you have received this communication in error, please notify me by telephone or email and delete all copies immediately. *************************************************************************
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