Multimeters and test equipment.

[mudnut]

I bought an Allsun EM125 scopemeter, as it looked like a unit that was rugged, and repairable. Last night the on button failed. It is just out of the 30 day return window, so I had a go at repairing the switch.

The switch was easy to disassemble, but one of the contacts was showing signs of having been hot. The contact was so lightly built, that no matter what I tried I couldn't repair it.

I can't understand the manufacturers thinking when they put this thing together.

The rest of the internals are really well put together and they have even used spring washers on the screws that
join to earth. Why put together something so complicated and hard to engineer, then use a crappy switch?

Any way, I ended up using a switch off a Sony Walkman (the white bit in the second picture) as a replacement, and the unit works.

My recommendation is steer clear of this mob's products.

[Bloodyaussie]

Cant believe you still have a walkman kicking about.......lol

[mudnut]

Ha ha. Got some parts from old amplifiers that I wrecked decades ago. Hindsight is a wonderful thing. Enthusiasts pay good money for them now.

[Bloodyaussie]

Crazy. .... i chucked stuff like that out 20 years ago..... as a kid i was wired for sound.

[Maxhead]

I'm an electronics engineer by trade but have not touched any circuit level repairs for years. I remember pulling 200 pin circuit mount chips and replacing them . Those days are gone





….................... On the move

[Maxhead]

Ask me what a NOR gate is these day and am farked





….................... On the move

[mudnut]

Same. After countless hours at night school too. These days my eyes are letting me down. My soldering looks like bird turds. I'll have to invest in a huge magnifier/ light and hope I put it away each time I use it, so it doesn't
catch the sun and burn the house down.

[Maxhead]

Same. After countless hours at night school too. These days my eyes are letting me down. My soldering looks like bird turds. I'll have to invest in a huge magnifier/ light and hope I put it away each time I use it, so it doesn't
catch the sun and burn the house down.

One thing I will never forget is soldering and I have to say I;m ferking good at it. I'm wearing glasses these days for those short sight distances

[TPC]

Same. After countless hours at night school too. These days my eyes are letting me down. My soldering looks like bird turds. I'll have to invest in a huge magnifier/ light and hope I put it away each time I use it, so it doesn't
catch the sun and burn the house down.

I am the same, I can still solder good but only with the assistance of a big magnifying light clamped to the workbench. I get younger guys at work to do the fine soldering these days. I used to have excellent eyesight but by the time I was 48 I could no longer do much without glasses.

[threedogs]

Crazy. .... i chucked stuff like that out 20 years ago..... as a kid i was wired for sound.

When a heap of us went over to Kupang my mate brought a Walkman for $380, jaw dropping eh..?

@ TPC I have one of these http://www.ebay.com.au/itm/Double-Th...0AAOSwVL1V~8PM