Jerry, There is no one transistor that will cause that behavior.
First put an in-line wattmeter and a dummy load on the KAT100 ANT1 connector, set the power to 50 watts and then enter TUNE. 1) does the tuner tune so no LEDs are lit on the KAT100? If no, how many are lit? 2) what is the power indicated on the wattmeter (it should be about 20 watts)?
You may have "popped" one or more of the diodes in either the KPA100 or the KAT100 wattmeter, but the answers to the above questions will indicate where to look next.
73, Don W3FPR On 1/2/2016 12:56 AM, Jerry Ford wrote:
Good evening all: I'm looking for some advise. My KAT100 / KPA100 are in an EC2 enclosure next to my K2. I was changing bands this evening and neglected to changeantenna's when moving from 80 to 40 meters. I hit the " TUNE " on the K2 and my KAT100 triedto tune. It ran through the scale a couple of times beforeI could shut it off. Now when I hit the "TUNE" button, the radio goes intotransmit, but the tuner isn't tuning anything. Normal operation the tuner would tune and go back to receive. It doesn't change back to receive unless I hit the tunebutton again. SO, the tuner quit. I remember reading about a transistor that fails and causes this issue but I don't remember which one it is. SO, looking for some information.
______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]
