Hameg 203-4

As usual you can find some great bargains on eBay!

A few weeks ago I brought my first oscilloscope, a Hameg HM203-4, on eBay for £14.51, quite a deal I think. It was sold as “For parts or not working” as the seller didn’t know anything about oscilloscopes  or how to use them.

The Hameg HM203-4

The Hameg HM203-4

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I do love that there is a warning about the X Ray dosage!

Although it was sold on eBay as good condition, one of the buttons was missing. Fortunately I was able to see it inside the casing and so wasn’t too worried.

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So its time to crack it open and see what’s inside . . . Just two screws on the back and the whole metal chassis slides off.

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just two screws on the back

With the metal chassis removed we get our first glimpse into the home of the magic smoke. Just as I had hoped the missing switch was just a case of the shaft having popped out of the holder, I wonder what happened. . .

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A nice easy fix =]

So now that is fixes, here are some specs. Its a dual channel scope with a bandwidth of 20 MHz its not the fastest beast out there but then its not the slowest either, backed up by a max input sensitivity of 2mV/cm. One feature I’m interested to try and think might be pretty good for me as a student is the component tester. to make matters even better its apparently recommended for the training of engineers, perfect.

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What a pretty board

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Poles Poles Poles, and a little bodge 🙂

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I was amazed to find capacitors without venting on the top!

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At least the CRT was made in 1983.

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