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JYE Tech DIY Oscilloscope
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 Posted: 25 Nov 2017 11:32
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paul_l
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Just ordered one of these up from Aliexpress

https://www.aliexpress.com/wholesale?SearchText=dso-shell+dso150

With two additional probe types total £23.50 inc p&p for an oscilloscope !!!!!

Specifications

Now this is not going threaten mainstream handheld & desktop Oscilloscopes - but then again I couldn't afford one of them, it works well within the DCC voltage and frequency ranges.

For the brave (or foolhardy - me)

Building Instructions (pdf)

Paul

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 Posted: 25 Nov 2017 15:58
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Keith M
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Now that's a 'Proper' kit!!! As a "Yoof", many years ago, I built a fully working 6'' tube oscilloscope from an Ex-WD surplus radar unit, power unit had a capacitor on the chassis almost the size of a block of flats! It worked well, but after I left home, later discovered that Dad had thrown it out, assuming that I didn't want it......never did get around to building another, although I looked long and hard at the "Heathkit" ones. (For those not in the know, Just Google "Heathkit", a huge range of quality American kits, of which I built a number, including FM stereo tuner amps/quadraphonic decoder etc.) Unfortunately, the company is now no more. Which one of all the versions of this 'scope have you ordered, Paul, I may be similarly tempted?
Keith.



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I thought I saw a light at the end of the tunnel.........but it was only some swine with a torch, bringing me more work!!!
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 Posted: 25 Nov 2017 17:08
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paul_l
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Hi Keith

Link to the one I've ordered

It will pop up with please choose the colour you want - its a test I failed a few times, there are three options hence the £3.50 to £15.18 price tag.

Option 1 - std Oscilloscope clip probe with gnd clip £3.50
Option 2 - DIY Oscilloscope kit £15.18
Option 3 - Oscilloscope lead with Red & Black clip connectors £3.50

You need to add the selected item then add it to the shopping cart, rather than buy it now.

I ordered all three :whatever:

Paul

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 Posted: 25 Nov 2017 20:07
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Keith M
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Thanks Paul, just ordered the three!
Keith.



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I thought I saw a light at the end of the tunnel.........but it was only some swine with a torch, bringing me more work!!!
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 Posted: 26 Nov 2017 11:41
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Keith M
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Had my "Order Shipped" email this morning (Is it already Monday in China or do their post work 7 days???). Guess it'll be the usual 3 to 5 week wait, so don't expect to get it this side of Christmas, but I'm not short of kits to build!
Keith.



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I thought I saw a light at the end of the tunnel.........but it was only some swine with a torch, bringing me more work!!!
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 Posted: 26 Nov 2017 15:05
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paul_l
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Mine too,

I also bought a component tester

https://www.aliexpress.com/item/BSIDE-ESR02-Pro-Digital-Transistor-Tester-Diode-Capacitance-Resistance-Chip-Component-Inductance-Meter/32838308700.html

confirmation for this arrived as well, but this appears to becoming via air mail, so no slow boat from China :mutley2:

Paul

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 Posted: 9 Dec 2017 12:04
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paul_l
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It's arrived - very well packaged - it took some time to remove the expanded polystyrene box without damaging the foam packaging - always knew those modelling scalpel skills would be good for something :avatar:





I ordered the two additional probes, as well as the standard probe included.


Phew - the SMD parts are already assembled on the board, so I only need to solder on the switches, resistors, capacitors and assemble the boards.

The two main boards - showing the components and display screen

and the other side



All the bits now in a storage box (container rescued from the last order from the local Chinese takeaway - quite appropriate I thought).
Ready for assembly.
Full colour instructions included in the kit as well as the pdf version available for download.

Paul

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 Posted: 9 Dec 2017 12:22
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Keith M
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Had an email from Aliexpress this morning to say that mine is "at your local post office" ( I assume they mean sorting office by this) so mine's not far away. Only just got back from collecting items they didn't deliver yesterday, a long queue waiting. Seems they're delivering more "Sorry you were out" cards than parcels these days, which doesn't usually happen as our local 'postie' is a pal, but it's his week off this week, so there's a 'strag' on! Drat!
Keith.



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I thought I saw a light at the end of the tunnel.........but it was only some swine with a torch, bringing me more work!!!
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 Posted: 9 Dec 2017 12:58
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paul_l
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It looks fairly straight forward - time will tell :scratchchin:  :mutley2:

Possibly the only downside is it looks like it uses an external (9V) power supply only. Certainly not a deal breaker

Paul

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 Posted: 9 Dec 2017 14:27
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Keith M
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Yep, just got mine now, more to keep me busy!
Keith.



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I thought I saw a light at the end of the tunnel.........but it was only some swine with a torch, bringing me more work!!!
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 Posted: 11 Dec 2017 16:49
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Keith M
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Built mine up this morning, but to be on the safe side, I did a voltage test on the only 9 volt 'wall wart' I had, and found it's output was 13.6 volts DC. I know that with a load connected, that voltage will drop somewhat, but still not willing to risk that, so did the initial testing with the nearest I had, a 5 volt DC one, and obviously the test voltages on completion were a bit low. Just ordered a 9 volt switched mode power supply now so I'll have to await delivery before I can do the final setup testing. Other than that, it was a pretty easy build, although since the resistors are not carded and identified (unlike the MERG kits), I got the multimeter out and tested the resistance of each one before soldering into place, especially since these days, I'm a bit 'rusty' on my resistor colour codes, but still vaguely remember my college lecturers suggested method of remembering the colour order with this little 'ditty',-Bad(brown) Boys(black) Rape(red) Our(orange) Young(yellow) Girls(green) But(blue) Virgins(violet) Get(grey) Wise(white).:mutley2::mutley2::mutley2:

Keith.



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I thought I saw a light at the end of the tunnel.........but it was only some swine with a torch, bringing me more work!!!
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 Posted: 11 Dec 2017 21:47
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paul_l
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Not done the build yet, but did do the suggested power on test, but used a 9V PP3 battery (OK showing my age here - cos its an Alkaline its a 6LR61, but PP3 sounds better).



According to the instructions, you need to boot the device before starting to assemble the parts or your warranty is void - then let Toto loose with a No.3 hammer (just for fine work).

I was impressed with the boot process, screen looks very sharp.

Hopefully I will catch up with Keith over the next couple of days.

Paul

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