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This is an alternative repair to the one suggested by JH3CLV who fabricated a heat sink for R121. This video and repair was done in 2014. Unfortunately, since then JH3CLV has suffered 2 more failures. However, my tuner has not suffered a failure for 4 years since my repair. However, no inference as to the efficacy of my approach should be taken from this experience as I most likely have been just lucky! Links to JH3CLV discussion on issue: http://radiovillage.bbs.fc2.com/?act=... http://www5a.biglobe.ne.jp/~jh2clv/my... http://www5a.biglobe.ne.jp/~jh2clv/mf... Any comments or suggestions as to why this situation occurred and what are better repairs and mods are welcome. One mod I do intend to make is to use heaver gauge leads to the resistor than the ones shown. 73, Frank