I've got one and mine is rather good. I also have a Peak transistor tester which is good, but nothing like as versatile as this one. It can test capacitors, inductors, transistors. Perhaps not as "accurate" as the Peak one, but a fraction of the cost and more much versatile.
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This came with a separate acrylic laser cut lot of plastic and bolts and spacers. NO instructions,
so if I find a guide might build it... but can I be bothered!!! Rather a few more pounds for "pre-welded" version. I would recommend anyone into electronics get one,,,ready built :)
Looks like yours Steve. Worth the bother ie is it any good?
Last edit: stan cartwright 2021-04-05
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Great. As I said, it's way more versatile than the very expensive Peak analyser that I bought many years ago.
I don't remember mine coming with any instructions, but it wasn't a hard build. Even assembling the convoluted acrylic case didn't take long. I only paid a few pounds for it with the case, these sorts of things almost never come with instructions. Or they're in Chinese...
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Pretty sure it's just match the components to the pcb. Values printed on the board aren't they? Measure supplied components if you're not sure and stuff 'em in!
Not that it matters in the slightest, but MkStevo is short code for Mark Stevenson: Mk. Stevo. Not Steve! Though I'll answer to almost anything that isn't insulting.
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It works. The display was dim as I used a 2k2R instead of 220R for the backlight. So a 220R is on the board in the wrong place,probably where the 2k2R should be.
The case is as much fun as repairing a car engine ie not much. Elastic bands would have helped, it's really tricky to put together. As it was a gift as a kit I can't moan. Very interesting it uses a mega328p the same as the component tester I already have, All from a German guy who sold it at 16 years old is one story.
In another search it said the guy wanted to backup the original program before coding a tetris game
but the 328 was blocked, like there's a bit you can set so it's not readable.
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Nice device for identifying devices. A multi-meter would be more accurate but it's pretty good.
The cap esr is useful which is what I use my other "transistor tester", as their called. for.
Has fixed freq pwm out and various fixed freq out selected from the rotary switch.
Does inductance and some voltage input but don't know the voltage range so no tried..
Good kit for £5. Mine was a "gift".
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A present from a mate in lockdown. He said it was a logic analyser but anyone seen one?
I would say it is a component tester.
One of these:
I've got one and mine is rather good. I also have a Peak transistor tester which is good, but nothing like as versatile as this one. It can test capacitors, inductors, transistors. Perhaps not as "accurate" as the Peak one, but a fraction of the cost and more much versatile.
Yeah. searched https://www.google.com/search?client=opera&q=gm328&sourceid=opera&ie=UTF-8&oe=UTF-8
and I already got a component tester...even says capacitance esr.
Don't fancy soldering another
steve, they are really useful. does inductance as well. cap esr is useful. does more than my multimeter.
I used a 3d printer to make a case
Last edit: stan cartwright 2021-04-04
Mine came with a case. Of sorts...
This came with a separate acrylic laser cut lot of plastic and bolts and spacers. NO instructions,
so if I find a guide might build it... but can I be bothered!!! Rather a few more pounds for "pre-welded" version. I would recommend anyone into electronics get one,,,ready built :)
Looks like yours Steve. Worth the bother ie is it any good?
Last edit: stan cartwright 2021-04-05
Great. As I said, it's way more versatile than the very expensive Peak analyser that I bought many years ago.
I don't remember mine coming with any instructions, but it wasn't a hard build. Even assembling the convoluted acrylic case didn't take long. I only paid a few pounds for it with the case, these sorts of things almost never come with instructions. Or they're in Chinese...
Thanks Steve. I'll search info...someone on youtube has probably built one.
Pretty sure it's just match the components to the pcb. Values printed on the board aren't they? Measure supplied components if you're not sure and stuff 'em in!
Not that it matters in the slightest, but MkStevo is short code for Mark Stevenson: Mk. Stevo. Not Steve! Though I'll answer to almost anything that isn't insulting.
Oops, sorry for thinking you were Steve.
seems this has 3 smd already mounted on board
https://dragaosemchama.com/en/2019/04/gm328a-reverse-engineering-new-firmware-and-tetris/
Looked up building. Mine looks like this so see if all the bits are there.
Last edit: stan cartwright 2021-04-05
Well as you can see, all the bits are labelled, measure them if you're not sure and stuff 'em in!
It works. The display was dim as I used a 2k2R instead of 220R for the backlight. So a 220R is on the board in the wrong place,probably where the 2k2R should be.
The case is as much fun as repairing a car engine ie not much. Elastic bands would have helped, it's really tricky to put together. As it was a gift as a kit I can't moan. Very interesting it uses a mega328p the same as the component tester I already have, All from a German guy who sold it at 16 years old is one story.
In another search it said the guy wanted to backup the original program before coding a tetris game
but the 328 was blocked, like there's a bit you can set so it's not readable.
Nice device for identifying devices. A multi-meter would be more accurate but it's pretty good.
The cap esr is useful which is what I use my other "transistor tester", as their called. for.
Has fixed freq pwm out and various fixed freq out selected from the rotary switch.
Does inductance and some voltage input but don't know the voltage range so no tried..
Good kit for £5. Mine was a "gift".