Wow, not only an electronics genius, but Mark also plays guitar 👍👍👍

Watching People actually manefacturing stuff instead of buying or outsourcing is awsome!!!! please more!!!!

Is there no end to your talent. I’m very impressed with your efforts on this one Mark.

Just what every electronics workshop needs, a test strat.

Before this channel, you couldn't easily find it all together in one person: knowledge, charisma and sensibility. Mr Mark, you're all of those things, your channel is one of the best here and I look forward for more from you, sir. Well done!

“Better discharge the static…Not that there is any in this country” 😅

Etching your own board, finding a functioning chip replacement. You're a beast Mark , thank you! I've been watching your videos for the last several evenings

I can build and troubleshoot electronics, and I have a lot of fun with it. However I can testify that Mark is on a completely other level. Great to witness this proficiency. I am also impressed with the cheerful easygoing attitude. Cheers Mark

That’s why I loved fault finding as nothing quite replaces that buzz you get when you switch something on after a repair and it works ! It takes a certain type of person to be a technician. It’s addictive lol. The more complicated the repair the bigger the buzz. At nearly 70 I can’t do delicate work anymore due to trembling hands and it’s so annoying, but I still have all the test gear !

Never seen handmade pcb's before - I've just been educated AND entertained! Thanks man, you're a modern day McGyver!!

It’s always a great day when Mend it Mark uploads a new video. Thank you!

The fake chip has marks on top showing the original top surface was ground off. The half moon indicating pin 1 is also shallower than normal. Amazing effort rolling wire to make flat pins!

That really took me back to my CDT lessons, I loved making printed circuit boards like that 😊

Glad you liked the T strippers! Ideal entered the market with abrasives for DC armature maintenance and branched out. Glad you got some nice sounds out of the Mistress.

Wow solid work! 😀 Lovely bringing a device like this back!

“Night after night, who treats you right?, Baby, it's the guitar man”. 🎸

As usual - very clever and resourceful repair. I think I might have added a power light as a bonus.

Brilliant! Love watching your repairs - its the chuckle that's the icing on the cake!

Any machine you don't have?.... lol Thank you Mark for letting us walk along with you on these projects. Sorry about the fake chips. Really enjoy watching you work your magic. Thank you from the US!

to align all the legs before soldering them you can use a spare socket and press the legs into the spare socket and then solder all the pins at the same time.

watching you work your magic, i regret not getting into electronics when i wanted to, as a young electrician apprentice. Now im just a sparky, but playing at fixing amps as a hobby, learning from you at nearly 50. Thanks Mark

Im so glad i found this channel. Please more of these. So cool.

The counterfeit market makes things super frustrating! I loved that you made your own PCB for the replacement.

Hi Mark, as a fellow engineer from Walsall I just wanted to thank you for the enlightening videos ,keep up the good work, every day is a school day 😆👍

Man I did not predict that a home made circuit board would be part of the fix! That’s truly next level stuff! I’m sure you have no shortage of things to work on but the guitar community are predicting a huge drop off in the number of people capable of repairing tube amplifiers in the next few years. Would you consider making some content tackling common issues associated with guitar tube amps?

Jasus! As always an amazing repair and engineering work Mark. First time I’ve seen you play, no end to your talents. You’ve opened up a big can here Mark with your work around. You’ll be bombarded, I’d like to jump in first, will you make me one of those boards for my HH Clockwork Concubine, I’m on my last 1024A Might try buy some 512s as spare. Keep up the brilliant work. Thank you Trev

Подумал - Сашка Лаэртский, ан нет. Но когда в конце заиграл на гитаре - засомневался ) Спасибо, вы очень крутой спец!

I used to work in a small music store in the 90s, and I had to deal with very similar repairs as this one. To be honest, I would have just hard wired the different chip with jump leads. Crude, but effective. I like your way better.

Is there no end to this man's talents ...........................................

What an absolute pleasure to watch somebody who actually knows what they’re doing 😎 Shame you’re maxed out with work, Mark - I’d love to send my old EHX Deluxe Memory Man in…

That old peddle has a nice warm sound to it. Your nice little modification board was the most interesting bit of that process. Nice work. You have a lovely workshop, it would be interesting to do a little mini- tour of it in a video one day. BTW - I love your guitar, lovely colour.

I've watched many of your videos Mark .. and there's always another bit of kit! Wire roller ... chip straightener - awesome

The SAD1024 is virtually unobtainium. They sound great for guitar, though. I've made a pop-in replacement using more modern chips, as have others.

... and you're a muso as well! I'm more impressed every day Mark 😆 Possibly the most impressive tech repair channel ever mate, love your work!!

Respect, this brought me back some solid memories of lessons creating boards using nasty chemicals, awesome!

Ahhh Mark, I have to go to bed ffs! Oh well. 30 minutes less sleep can't hurt.

You are a pretty incredible dude. You've reignited my love of electronics, that is, the knowledge of each component, identifying circuits. Keep up the good work.

11:12 Thanks for the great tip of floating the non-drilled single sided PCB on the etchant!

Who would know that one of the most involved repairs I've seen you done would be of such a simple circuit! Always a pleasure to watch your vids Mark

Multi talented, very impressive. Thanks for the great videos Mark. Keep 'em coming.

Fantastic repair - top notch work as always. So glad I found this channel. Keep up the great work!

It's fascinating to watch you repair things, thanks for your videos !

my main interest in electronics is audio..guitars, pedals amps, mics, preamps, mixers..love these ones

Any other technician would say " irreparable", but not Mark. Greetings from Brazil.

Always in awe of your capabilities and skill Mark. Outstanding work as always.

Omg, nice guitar! This was a fun episode.

Your process for making these videos is spot on. I can't tell you how much I enjoy your work, Mark. The breadth of gear you cover is awesome I can honestly see you going a long way!

Love your craftsmanship and cheerfulness!

What an amazing fix. Found your channel recently and am loving it. Real hardcore techie stuff.

It's fascinating to watch you repair things. Thank you for sharing such a entertaining video.

Amazing to see you at work there Mark and we are all in awe of your broad skills re electronic manufacturing and testing.

This video brought me back to 1982, I was taking an electronics class at college and we had to design and etch a rather basic circuit board and then build some device. Radio Shack, in the US, had everything I needed. There was a marker like pen that put a resist compound on the board, that created the traces. Any copper that didn’t have the resist marker would be dissolved by the acid.

Hi , I just want to say how much I enjoy watching , you are brilliant at making the very technical repairs interesting and fun.

Amazing! Seems as some of your other subscribers had the same thoughts as I had like is there no end to your talents in repairing items but also being able to play the guitar. Really enjoy watching your videos - great stuff 👍🏻👍🏻👍🏻👍🏻👍🏻

I've got a late 70s, Mistress (the 2x9v) version that I got as my first ebay purchase back in 2004. Sold as "untested". When it turned up no sound. I found a pedal repair guy who thought the same as me that the SAD1024 was dead. Luckily the only issue was one of the 741s had died. He replaced it and it was good. I really needed to get that pedal down from the attic to test it as it's been 10-15 years since I last plugged it in

Fantastic repair as always, very skilful, I love the way you never give up, I thought that would have been a gonner, but you did the business, well done.

Chip straighteners? Who knew? That was really interesting Mark,even though a lot of it was over my head🙄Nice Strat BTW

I know that feeling when you plan and prepare everything, but at the first switch - things don't go to plan... Kudos for sticking with it and working out the solution!

Thanks, Mark. I love your presentation style and excellent production qualities. Cheers!

You've just got yourself another subscriber. Very informative and interesting video. Gonna binge watch the rest of your content. Nice work.

Astonishing knowledge and skill - Brill

Thanks Mark for the expert troubleshooting and repair lesson! ☺🙏

Brilliant, I started 40yrs ago as a pcb process engineer, that was genius…

Wow, last time I did this was probably 40 years ago ! You rock!

Fantastic video. Well done. Mike Matthews would be proud!

I am impressed with your road to succes towards half a Mistress with satisfying result!

Once again, a most enjoyable video Chris

Your approach is spot-on. Top-notch work, Mark. I guess I’m gonna get that mechanical workshop going after all :)

Always enjoy to watch Mark working, so good working methods, cool tricks.

Fantastic work Mark, keep the vids coming 👍

Amazing Mark, you really excelled this time. And You play Guitar too, no end to your talents. Keep 'Em Coming.

Mark, Thank-you for your response on your Cats name! I just started watching your video's and now I can't stop! So interresting. I have those wire strippers myself, Their awsome! I live in the United States, In a small town in Northwest Ohio Called Maumee. So your vids reach far and wide! Keep up the great work! Mike Z.

It's great to watch a genius at work. A man of many talents.

Great job, well and thoroughly done😮

Great save using the SAD512 on a custom PCB. I liked the flanged minor sevenths too.

Amazing work, a lot of different skill sets there. Nice Work Mark !!

From start to finish a brilliant video and your tooling is nuts!

Excellent fix, as I recall Electro Harmonix made two versions, the Electric Mistress and the deluxe version, I have owned both, way back, trying to simulate a Leslie organ cabinet, I was given one that had been installed in a box, for free standing rather than floor use, I sold it for a considerable amount, maybe somebody was buying it for the components !

You are a genius, Mark amazing skill level

Another great video, Mark. Definitely a lesson learnt about fake chips - and not a bad guitarist, either.

Awesome work Mark, brilliant fix.

Electronics , chips chops and licks what's not to like. Excellent Mark enjoyed this a lot. 🎸🪛🎖

Amazed that you went straight to making an adapter PCB without testing the modern chip on breadboard or similar. You know what works right away.

Very very impressive repair Mark, simply fascinating skills.

Great repair Mark. I learned a lot from your channel so far. Keep up the good work 👌

One of the most involved music videos I've ever seen.

Awesome fix Mark - great improvisation.

This man tools. Seems to always have the right machine for the job.

loved it all and the guitar solo, excellent stuff mark thanks

Very nice work as always! I didn't know you played a little Guitar! Enjoyed this video as always and thanks for sharing!

Really enjoyed watching this. Great post.

Hi Mark... Nice fix, most inventive! I've been using a T Stripper for about 15 years now. Still as good as when it was new. It cost about a tenner at RS Components. A lot of money then but it was bought for me for doing a small fixing job on some amp or other. Cheers.

just incredible

Greetings from Germany! I like your nice way of explaining electronics. It`s calming to watch you! Keep it up!😀

This absolutely made my morning, thanks Mate!

The guitar was the cherry on top of the cake!!

Good repair Mark and nice guitar playing at the end.

Amazing video with so many twists and turns! Let’s make a PCB and get the Strat out

Awesome work mate, really enjoying your show. Cheers.

Very nice Mark. Enjoyed the repair.