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Test Equipment Anonymous (TEA) group therapy thread

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nfmax:

--- Quote from: med6753 on May 23, 2018, 11:01:43 am ---Decided to put the B&K 2120 scope to use rather than put it in storage. I connected it into the audio system reminiscent of those fancy audio scopes sold back in the 1970's. Yea, it's campy and doesn't really serve much function other than to impress the unwashed masses with dancing green lines. They can enjoy display of discrete left and right channels (Pix 1) or the X/Y "fuzzball" display (Pix 2). Pix 3 is an overall view of the entire system.

Yep, I'm odd.  :-DD :-//

--- End quote ---

compare a cheap DSO in this application and you will immediately grasp why the waveform update rate matters...

Specmaster:
Meter is back, arrived in a beautiful padded box that would take almost any sized meter as the foam padding was stuck to the walls and floor of the box was nicely dimpled and shaped so that you could wedge a meter into it and it would be protected, almost like being a baby inside a womb  :-+ Did I just write that  :palm:

Well I thought that maybe the short on the power to the cmos ram might have taken out the diode when the short occurred, nope thats all fine and so I checked the supplies, horror  :scared: it looked like the analogue side was not getting  its power, digital side was perfect  :-//. Then it dawned on me that it might have its own ground, isolated from the digital and bingo, it has and all voltages are correct  :phew:.

So the question is, did they know how to calibrate this after all? So now I'm going to try and see what I can do with it, more later if penis fingers can keep away this time  :-DD

EDIT:
Just noticed that cal selector switch is not in the correct position, could it be...surely not,,,surely they must of noticed it??? :-//

EDIT:
On switching on it displays "UNCALIBRATED" but connecting it upto my AD584-M it reads DC voltages to correctly as per post #11003 so thats strange.

bd139:
analogue is floating on that.

This is the conclusion I have:

med6753:

--- Quote from: nfmax on May 23, 2018, 11:25:12 am ---
--- Quote from: med6753 on May 23, 2018, 11:01:43 am ---Decided to put the B&K 2120 scope to use rather than put it in storage. I connected it into the audio system reminiscent of those fancy audio scopes sold back in the 1970's. Yea, it's campy and doesn't really serve much function other than to impress the unwashed masses with dancing green lines. They can enjoy display of discrete left and right channels (Pix 1) or the X/Y "fuzzball" display (Pix 2). Pix 3 is an overall view of the entire system.

Yep, I'm odd.  :-DD :-//

--- End quote ---

compare a cheap DSO in this application and you will immediately grasp why the waveform update rate matters...

--- End quote ---

I'll be sure to explain that fact to them while they are watching the dancing display and then be totally convinced that I need to be committed.  :scared:

med6753:

--- Quote from: Specmaster on May 23, 2018, 12:45:19 pm ---Meter is back, arrived in a beautiful padded box that would take almost any sized meter as the foam padding was stuck to the walls and floor of the box was nicely dimpled and shaped so that you could wedge a meter into it and it would be protected, almost like being a baby inside a womb  :-+ Did I just write that  :palm:

Well I thought that maybe the short on the power to the cmos ram might have taken out the diode when the short occurred, nope thats all fine and so I checked the supplies, horror  :scared: it looked like the analogue side was not getting  its power, digital side was perfect  :-//. Then it dawned on me that it might have its own ground, isolated from the digital and bingo, it has and all voltages are correct  :phew:.

So the question is, did they know how to calibrate this after all? So now I'm going to try and see what I can do with it, more later if penis fingers can keep away this time  :-DD

EDIT:
Just noticed that cal selector switch is not in the correct position, could it be...surely not,,,surely they must of noticed it??? :-//

--- End quote ---

The plot thickens......

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