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Test Equipment Anonymous (TEA) group therapy thread

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bd139:
High bandwidth, colour screen but not a megazoom so only 5k pts memory depth.

Could easily double that money just by putting it back in a box again  :-DD. I would but I'm too busy  :-\

Vince:
Yep no Megazoom if just I guess because with 2GS/s sampling, 10 times more than a Megazoom, it would have required too much memory for the day, and more importantly I guess so much ASIC performance that it would have been either cost prohibitive even for high end HP stuff customers, if even at all technically achievable at the time.

That's where I will concede the modern scopes a clear advantage. Technology/performance has improved to the point where you can have both high BW / sampling rate, and deep memory at the same time, and you can set the trade-off between the two on the fly as you require, to suit the job at hand as best as possible. High time resolution versus high refresh rate to find rare events.

That's the main selling point to me, if I were to ever be in a position to be able to spend money on a modern scope.
That, then next selling point to me is the large wide aspect ratio screens that give you a lot more real estate to see your signals.



mrjoda:
I just found this ...

https://www.rohde-schwarz.com/tr/applications/a-homemade-lisn-for-precompliance-conducted-emission-tests-on-dc-dc-power-supplies-application-card_56279-1010752.html


I've seen it on Embedded world exhibition during their demo.  Looks buildable.

Specmaster:
Postman has just dropped off the Commodore F4902 calculator, but sadly the last digits of the 11 digit plus +/- display have segment "A" missing, which is not quite the end of the world but still annoying as when the digit displays 1 there is no real way to work out if the 1 is correct or should it be a 7 :palm:

This is a one chip calculator, keyboard matrix and the bubble LED digit display, there are no other parts to it. All connections have been checked and test out OK, no bad connections or broken tracks, so it has to be either the display or the chip.

I'm leaning towards the display itself, does anyone know where such displays may be obtained from these days?

capt bullshot:

--- Quote from: Specmaster on June 28, 2022, 12:45:52 pm ---Postman has just dropped off the Commodore F4902 calculator, but sadly the last digits of the 11 digit plus +/- display have segment "A" missing, which is not quite the end of the world but still annoying as when the digit displays 1 there is no real way to work out if the 1 is correct or should it be a 7 :palm

I'm leaning towards the display itself, does anyone know where such displays may be obtained from these days?

--- End quote ---

Old calculators  >:D

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