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Rakit Drum Synthesizer DIY kit

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Re: Rakit Drum Synthesizer DIY kit

Postby MarkOne » Wed Oct 10, 2018 9:13 am

The Elf wrote:If there's one 'old guy' skill we need to pass on it is soldering. If *I* can do it, ANYONE can!

You will never need to buy another over-priced jack-to-jack cable again...

As a gentleman of a certain age, my close-focus ability is getting worse. (like everybody's - As we age the lens in our eye gets stiffer and the muscles that focus it cant pull it to the right shape to close focus)

For years as a youff I made my living sat at a bench with a soldering iron but these days soldering up an XLR is just as likely to end up with burned fingers and dry joints.

Until I bought one of these:

https://www.amazon.co.uk/gp/product/B01882K0OC/ref=oh_aui_detailpage_o07_s00?ie=UTF8&psc=1

It's transformed things for me... I have just soldered up 8 XLR panel sockets and 8 plugs to add mic inputs to the front of my rack from the rear of the Focusrite Liquid 56. How did live without one of these? Ever?

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Re: Rakit Drum Synthesizer DIY kit

Postby Wonks » Wed Oct 10, 2018 9:16 am

That's great. I've just ordered one for myself!
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Re: Rakit Drum Synthesizer DIY kit

Postby Hugh Robjohns » Wed Oct 10, 2018 9:29 am

blinddrew wrote:I think I've probably boogered something up somewhere.

Leave it for a couple of days, just so you come back to it afresh, then under a good light (or on a sunny day), check the solder side of the board carefully, looking for dry joints, solder hairs, shorts and that kind of thing. Use a magnifying glass if necessary.

If you're happy that everything is good there, look at the component side of the board, and check first for all those standing resistors touching and shorting each other. Then check all the diodes and transistors are in the right way around, then the polarised capacitors, and finally the ICs. Also make sure all the IC legs go through the holes and you haven't got one folded back under the chip.

If there's nothing obvious there, you'll need to start with a voltmeter and 'scope to check power rails and the signal generation and through the signal path.

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Re: Rakit Drum Synthesizer DIY kit

Postby Martin Walker » Wed Oct 10, 2018 4:14 pm

James Perrett wrote:I'd say a 40-60W temperature controlled iron is much better - I've had my current temperature controlled iron for over 30 years.

I've had mine for around 40 years now, and it's still going strong :thumbup:


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Re: Rakit Drum Synthesizer DIY kit

Postby blinddrew » Wed Oct 10, 2018 6:52 pm

Cheers Hugh, Darren at Rakits has given me some pointers to check but I've also got doubts about my 3.5mm > 1/4" adaptor so I should have another of those turning up tomorrow.

And the magnifier stand looks bang on MarkOne - I've got one of those little helping-hands things but the lens isn't good enough to actually help.
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Re: Rakit Drum Synthesizer DIY kit

Postby Alan25 » Thu Oct 11, 2018 9:45 am

Coming to Lidl on Sunday https://www.lidl.co.uk/en/MiddleofLidl. ... leId=16847 - looks like it might to the same job?
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