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Let's Repair and make Safe this Mesa Boogie Mk I - Part Two

The Guitar Amp Tech

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Let's Repair and make Safe this Mesa Boogie Mk I - Part Two

3 411 просмотров · 3 года назад
The Guitar Amp Tech
6,59 тыс. подписчиков
3 411 просмотров · 3 года назад
Let's continue the Mesa Boogie Mark 1 repair. We will start with correcting the dangerous mains wiring, then take a closer look at how Mesa can make their “No Bias” promise. I’ll explain what crossover distortion is with one of my great analogies (“Enough with your analogies, Dad!!”). Let’s then Bias the unbiasable (yes, it’s a real word) Mesa. You’ll learn about a common issue with Mesa amp's intermittent signal which can also be relevant to other amps with Send-Return loops. When I think of Carlos Santana, 2 things come to mind: His Mesa Mark One and PRS guitars. So you get to hear the Mark One with my PRS Santana guitar. If you appreciated the work or learning from this video, could you please honour me with a LIKE and please subscribe if you feel you could benefit from similar videos. Video Index 00:00 Introduction 01:00 How to check Mains wiring that is wrong and dangerous) 07:20 One way of solving a too-high filament voltage 10:55 Why is a fuse on the Neutral wrong..and dangerous 12:30 As expected – Mesa bias the output stage way too cold 15:00 Description of Crossover Distortion with a really good analogy 22:13 How to Bias a Mesa Boogie Mk 1 27:28 How to repair signal dropout in a Boogie 28:40 Review of work done 31:55 Install new Input Jack 33:05 The Mark 1 Audition 37:25 If you enjoyed this video, please press LIKE and SUBSCRIBE