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Old 6th Sep 2022, 9:14 am   #21
David G4EBT
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Default Re: 'Mend it Mark' YouTube Channel

I emailed Mark to compliment him on his videos, and sent him a link to this thread.

He replied to say:

Quote:

Thanks for doing that! Itís really nice to read the positive comments, Iím very flatteredÖ

I also had a request from another forum member, after he read your thread. He asked if I can show off some of the test gear, which I think I will soon.

My next video is a repair of a 1980ís Digital Delay Module, hopefully I can edit it in time for release on Friday!

Unquote.

So much stuff on YouTube is by dabblers with 'delusions of adequacy' or waffly academics who have the technical skills, but lack the practical skills. It's a breath of fresh are to come across a professionally qualified, experienced and versatile guy such as Mark.

'All the gear and the right idea!'
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Old 6th Sep 2022, 10:20 am   #22
Trevor
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Default Re: 'Mend it Mark' YouTube Channel

I loved watching Mark and fell about laughing when he comment (it took longer than Phillip Scoffield to come) out when removing a module
Good practical work
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Old 22nd Sep 2022, 1:01 pm   #23
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Default Re: 'Mend it Mark' YouTube Channel

Mark's latest video is now up - a tour of his workshop and the equipment! WOW.

https://www.youtube.com/watch?v=IWBDrqGmTnQ
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Old 22nd Sep 2022, 4:48 pm   #24
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Default Re: 'Mend it Mark' YouTube Channel

Oh wow!
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Old 23rd Sep 2022, 5:17 pm   #25
Vintage Engr
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Default Re: 'Mend it Mark' YouTube Channel

I thought that I had a lot of test gear, but that is mind-blowing.
I wouldn't want his electricity bill!

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Old 24th Sep 2022, 7:32 am   #26
peter_scott
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Default Re: 'Mend it Mark' YouTube Channel

Impressive! And I don't just mean his test gear.

Peter
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Old 24th Sep 2022, 8:54 am   #27
Nickthedentist
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Default Re: 'Mend it Mark' YouTube Channel

Quote:
Originally Posted by Vintage Engr View Post
I thought that I had a lot of test gear, but that is mind-blowing.
No wonder he keeps smiling so much
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Old 21st Nov 2022, 4:30 pm   #28
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Default Re: 'Mend it Mark' YouTube Channel

Wow, many thanks for the links and 'Mend it Mark' chappie - as you say, good to watch no fluff at all.
Quote:
Originally Posted by David G4EBT View Post
I've just discovered the YouTube channel of 'Mend it Mark'.

Very well made videos and a presentational style which is a breath of fresh air.

Here are a few - there are a lot more:

This one is well above my pay grade. (Check out the powerful microscope!):

Diagnosis and repair of a Roberts RD60 DAB Radio: https://www.youtube.com/watch?v=RqKIKSzD6yw

Restoration of a 1970s stereogram in several parts:

part1: https://www.youtube.com/watch?v=pD6X9OAmIxs

Part 2: https://www.youtube.com/watch?v=iYl6w9Y-smo

Part 3: https://www.youtube.com/watch?v=rlqVTSfUZGs

Modifications to the stereogram and Fitting Bluetooth:

https://www.youtube.com/watch?v=FaeIQ59rQpE

Niagara Juke Box: https://www.youtube.com/watch?v=byWbdwI13S8

Caravan Switched Mode PSU Repair: https://www.youtube.com/watch?v=ndp6P8iVJY4

Hope you find them as interesting and informative as I did.
SWMBO may curse you - for the amount of (happy) time I've spent watching him the last day or so, though!
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Old 21st Nov 2022, 9:02 pm   #29
Ted Kendall
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Default Re: 'Mend it Mark' YouTube Channel

I was less impressed to see him butchering a Walkman...
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Old 22nd Nov 2022, 9:12 am   #30
David G4EBT
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Default Re: 'Mend it Mark' YouTube Channel

Quote:
Originally Posted by Ted Kendall View Post
I was less impressed to see him butchering a Walkman...
Neither was Mark! At the end of the video, he says:

Quote!

'Mistakes were made. First mistake was leaving the batteries in causing corrosion.
Second mistake was mine - how I went about fixing it & caused myself a lot of grief - hours were spent'.

Unquote.

I'd say that his first mistake was actually to take on a job on a 27-yr old 'Walkman' that was beyond economic repair due to quite extensive corrosion on the mechanism, which wasn't meant to be dismantled, on an item which - in working order - would struggle to sell in a charity shop for a fiver. (The charity shops in our village no longer accept cassettes, VHS tapes, or CDs).

I was impressed with how much he'd deduced about how the electronics worked.

And I'm especially impressed both with his extensive and broad ranging experience and expertise, and above all his superb camerawork and video editing. About the only person I can think of on Youtube I can bring to mind whose videos are produced to that high standard is Chris Ramsay in Australia.

Chris's channel, (which isn't about electronics, but clockmaking and model engineering), is called Clickspring'. He works almost exclusively in brass, makes many of his own tools, and though not for discussion on here, there will be some forum members who might find his construction of a Skeleton Clock from start to finish of interest. (It includes etching the clockface numerals with ferric chloride). Quite a guy.

Part 1 is here:

https://www.youtube.com/watch?v=B8Y146v8HxE

I look forward to many more videos from Mend it Mark as a tranquil refuge from football and snooker on TV.
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Old 22nd Nov 2022, 12:31 pm   #31
slidertogrid
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Default Re: 'Mend it Mark' YouTube Channel

What a nice chap with a wonderful workshop! He did a good job on the walkman yes, he admits to a mistake with the lever with the corrosion under it, he must have the patience of a saint!
I think I would have given up on that! I will enjoy watching his videos!
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Old 22nd Nov 2022, 4:01 pm   #32
chriswood1900
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Default Re: 'Mend it Mark' YouTube Channel

Quote:
Originally Posted by slidertogrid View Post
What a nice chap with a wonderful workshop! He did a good job on the walkman yes, he admits to a mistake with the lever with the corrosion under it, he must have the patience of a saint!
I think I would have given up on that! I will enjoy watching his videos!
I think his videos are great and I have had the same problem on Walkman units with seized levers, at times the grease Sony used seems to turn into glue and is well nigh impossible to get the lever to come free even with solvents and heat, with practice I have got better at it but the first time comes as a surprise.
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Old 23rd Nov 2022, 10:16 am   #33
Sideband
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Default Re: 'Mend it Mark' YouTube Channel

I presume he must charge for his services. How much was the bill for that Walkman? In my opinion, just not worth doing. I have one here at work and I can't even get the thing apart.....at least not without causing severe damage to an unreplaceable enclosure part. Even if I do succeed in getting into the thing, I suspect it won't be worth doing unless it's something simple like a belt.

Having said that, I enjoy his video's and it's a real treat to see someone on YouTube that really knows what he is doing. Very impressed with his surface mount workstation.
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Old 23rd Nov 2022, 6:45 pm   #34
Audio1950
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Default Re: 'Mend it Mark' YouTube Channel

Fascinating and informative videos, but there's one thing I can't get my head round. During the work on the stereogram, he replaces a mono cartridge with a stereo. He makes a shorting link with a connector on each end, then connects that across two of the diagonal pins. Are those the two positives, the two negatives or one of each?

Barry
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Old 24th Nov 2022, 12:48 pm   #35
matherp
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Default Re: 'Mend it Mark' YouTube Channel

I suspect it is one of each and he is effectively adding the two signals to create the mono output
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