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#4
October 16th 06, 01:30 AM
posted to rec.radio.amateur.boatanchors
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Kenwood TS-520 problem
John Gerstner wrote: On my Kenwood TS-520 when I set the meter to the IP position, the mode switch to Tune, I do not get any plate reading. The only way I can get the radio working is go to the CW mode and adjust the plate and load controls for max rf. Are the tubes going soft or do I have other problems? -- John Gerstner - KI4LRP East Central Florida Scanner Page http://home.cfl.rr.com/scanner/ John,this is fairly common in that series of Kenwoods.. It is caused by an OPEN resistor ..R6 56Kohm located on HV unit (X43-1110-00 ) ...R6 is switched into the 6146 Screen circuit to reduce the power in tune-up position.anything close to 56K will be OK, 2 to 5 watts...The tune-up power is not critical ...Not too hard to fix.. enjoy the "Old Faithful" 520... Harold W4PQW |
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