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221/Repairs: Difference between revisions
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(Created page with "The 221 has a switching power supply. It has a transformer couple trigger circuit which produces a Dc level base trigger.It gets fried when the batter gets so old they draw t...") |
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The 221 has a switching power supply. It has | The 221 has a switching power supply. It has | ||
a transformer couple trigger circuit which produces | a transformer couple trigger circuit which produces | ||