The Shop > Electronics & IC Programing
Digital oscilloscope project/kit
John Rudd:
--- Quote from: RobWilson on April 03, 2016, 04:39:38 PM --- :lol: Funny you should mention it Dave I bought the smaller one and promptly fryed it :zap:
Rob
--- End quote ---
Whats broken on it Rob? I'm surecwe can fix it.... :dremel:
RobWilson:
--- Quote from: John Rudd on April 04, 2016, 06:05:03 AM ---
--- Quote from: RobWilson on April 03, 2016, 04:39:38 PM --- :lol: Funny you should mention it Dave I bought the smaller one and promptly fryed it :zap:
Rob
--- End quote ---
Whats broken on it Rob? I'm surecwe can fix it.... :dremel:
--- End quote ---
Sure mate , shall I stick it in the post :lol:
As you can see Bob has been at it :) , I now have all the toys to desolder stuff ,,,,,,,,,,,,,,,,,sort of all the gear ,no idea :lol:
Smoke was emanating from between the two inductors .
So to see whats what you have to remove the two capacitors from underneath .
To remove the inductors ,
To get to the things that have had the ID scrubbed , for F*&k sake it a friggin toy , why! :bang:
These turned out to be N channel MOSFET,s
The diodes test OK
As do the resistors
So can the magic smoke be released and the heater stop working , then the parts test ok under no load ?
It died due to some tit not limiting the max current on his bench PSU :zap:
So that's the project , just build it bigger :thumbup:
Rob
wheeltapper:
Hi people.
for those of you who have the scope kit I just received and fitted the plastic case kit and I have a few tips for you.
first thing is the LED at the bottom of the main board, this needs to be flush with the board or it will be squashed.
then, after the display part of the case is done and you fit the main board, there are 4 nuts to hold the board in place, DON'T tighten these up too much or the switches lock up. what I did was to run the nuts up so they touch the board then put locknuts on and lock them together.
this holds the board in place and also, the locknut comes flush with the side pieces of the case so when the back piece is fitted the rear nuts can tighten up without bending the plastic.
the only annoying thing is, at the top r/h side of the board is a two pin connector for the power supply, they forgot to leave a cutout in the case for this so it's inaccessible.
other than that it certainly protects the board and screen so I'm quite happy with it.
PS
by the way Rob, I seem to have accidentally ordered the airband receiver :Doh: :Doh: I can't understand how that could have happened. :) :lol: :lol: :D
have fun guys.
Roy.
RobWilson:
--- Quote from: wheeltapper on April 23, 2016, 08:19:18 AM ---
PS
by the way Rob, I seem to have accidentally ordered the airband receiver :Doh: :Doh: I can't understand how that could have happened. :) :lol: :lol: :D
have fun guys.
Roy.
--- End quote ---
:lol: :lol: Aye it happens Roy :thumbup: , I still have to put my kit together :zap: , So is it worth getting the plastic case for the DSO ?
Rob
wheeltapper:
Hi Rob and welcome back.
yes, I think it's worth while, it protects the screen if nothing else.
I put my radio together yesterday and guess what, the damn thing doesn't work and one of the transistors seems to be getting rather warm.
Time to use all the skills I haven't got to try to fix it :doh:
Roy.
Navigation
[0] Message Index
[#] Next page
[*] Previous page
Go to full version