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    Marantz 4220 Toshiba ta7109p ta7109ap

    I repaired a dead channel and some distortion in a Marantz 4220. After a recap of all the boards except for the ones relevant to the fm/am boards. Replaced the output transistors which were originally 2sc790 for new tip41 transistors. Also replaced the ic originally they were toshiba ta7109p in...
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