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In this short video I make a much needed modification to my 861D Hot Air Station in order to keep the LCD backlighting on at all times.
Note: This station is basically a 'copy' of the original QUICK 861DW unit. There are simply loads of copies going around and with different versions/revs of Pcbs inside.
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https://www.youtube.com/watch?v=ESRdLJ7Z7Bc
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Getting my workshop Aircon serviced the technician asked if I did repairs......and gave me a faulty IQL11+ from his van.
#electronicscreators
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https://www.youtube.com/watch?v=kdLp5dyT1Xg
The seller said there's no power and a burning smell!
So, this 3499A I do have plans to use it in the workshop, but first I have to fix it.
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https://www.youtube.com/watch?v=ZpuusBJhh4c
This is Part 2 of the repair of my Keithley 2001 7.5 digit Multimeter. Picked up quite cheap I was hoping for an in-depth repair.....and it certainly hasn't disappointed so far!
In this video I work on the Digital Board to get it powered up and then the Display to try and get it running.
Part 1 here:
https://www.youtube.com/watch?v=EHYip7P11yw
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https://www.youtube.com/watch?v=jU40pvNLFFU
In this video I start the conversion of an old school Gtek 7128 Eprom Programmer and along the way look into how the circuit actually works.
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https://www.youtube.com/watch?v=Z4g5Ud3fosU
Unhappy with the lighting on the display of my HP 3457A I had the idea to add LED backlighting to the LCD.....which doesn't support backlighting without major surgery!
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https://www.youtube.com/watch?v=oEu7nqOkKxo
My home built linear bench power supply, analysis of the schematic design ahead of building up the first pcb.
More details of the project over at my website - http://www.ianjohnston.com/index.php?option=com_content&view=article&id=92
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https://www.youtube.com/watch?v=x0fjSleInEw
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In this video I repair an Agilent 34405A Multimeter.
I say 'repair', spoiler alert: it was an extremely easy repair!
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https://www.youtube.com/watch?v=IiDucpKraG8
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In this video I continue to repair of an Agilent E3632A Linear PSU, and with some results at last!
Part 1 - https://www.youtube.com/watch?v=-OUFYUnMq9c
Part 2 - https://www.youtube.com/watch?v=gZWbPhIBSgs
Dataman S4 Restoration video - https://www.youtube.com/watch?v=qJi7C7huhHQ
Visit my website for lots more - https://www.ianjohnston.com
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...
https://www.youtube.com/watch?v=TyaRUv3dS20