Author Topic: Advantest R9211E  (Read 268 times)

0 Members and 1 Guest are viewing this topic.

Offline branadic

  • Super Contributor
  • ***
  • Posts: 1659
  • Country: de
Advantest R9211E
« on: April 11, 2020, 12:55:35 pm »
Hi folks,

last week I had a R9211E coming in, ordered on saturday, arrived on thuesday from Belgium.
It's a 10mHz ... 100kHz Spectrum Analyzer aka Dynamic Signal Analyzer aka FFT Analyzer, fully functioning. The screen is working as well, though some signs of deep burn marks visible and one of the feets was missing and another one slightly broken.
It was a bit dirty, so I first gave it fully cleaning with magic sponge. All that is left are some scratches in the coating, but that is not of a problem at all, as all the metall parts are aluminium, so no risk of corrosion here.
I also dismanteled it, gave it a cleaning inside and a first visual inspection. All caps still looked okay and the NiCd battery was still reading 3.6V. I might give it a replacement at some point, but not for now. Fan was cleaned and fan cover replaced, which was a bit crusty.
Fortunately there is a 3D CAD model available on thingiverse, so I had two new feets printed in black PLA, that perfectly fit.

https://www.thingiverse.com/thing:4021871

As a new CRT is rather expensive:

https://www.ebay.de/itm/CRT-Advantest-R3271-R3271A-R3265-R3265A-R3365A-R9211-/143396970740

and I already had a 6.4" TFT VGA display in the junk box, I decided to order some converter instead:

https://www.serdashop.com/MCE2VGA

I'm now waiting for it to arrive, so I can start the display conversion.
Powering the unit on the fan noise is rather low, given the unit is about 30 years old. Overall a nice unit, that I can recommend so far.
Already ran some first measurements and GPIB readings, which I will show soon.

-branadic-
« Last Edit: April 11, 2020, 02:02:04 pm by branadic »
Metrology Meeting 2020 is canceled. Looking forward for MM2021
 

Offline Ice-Tea

  • Super Contributor
  • ***
  • Posts: 1914
  • Country: be
    • Freelance Hardware Engineer
Re: Advantest R9211E
« Reply #1 on: April 11, 2020, 01:29:26 pm »
Just checked the description... thought the screen burnin was in it, apparently not. I appologize for that, it was an oversight, not bad will. Hope it doesn't bother you too much  :'(

Offline branadic

  • Super Contributor
  • ***
  • Posts: 1659
  • Country: de
Re: Advantest R9211E
« Reply #2 on: April 11, 2020, 01:48:51 pm »
Everything is fine, I replace the display anyhow. What makes me a little bit wondering, as the description I found for the unit speaks about an 8" CRT (see attachment), while a 6.4", 4:3 LCD seems to perfectly fit.

-branadic-
Metrology Meeting 2020 is canceled. Looking forward for MM2021
 

Offline coromonadalix

  • Super Contributor
  • ***
  • Posts: 2528
  • Country: ca
Re: Advantest R9211E
« Reply #3 on: April 11, 2020, 01:54:29 pm »
love the screw driver levelling    loll   :-+   screen too  :)
 

Offline Ice-Tea

  • Super Contributor
  • ***
  • Posts: 1914
  • Country: be
    • Freelance Hardware Engineer
Re: Advantest R9211E
« Reply #4 on: April 11, 2020, 02:07:14 pm »
love the screw driver levelling

That would be my handywork  ::)

Offline branadic

  • Super Contributor
  • ***
  • Posts: 1659
  • Country: de
Re: Advantest R9211E
« Reply #5 on: April 11, 2020, 04:49:35 pm »
Attached is the baseline for comparison, with the input shorted.

Edit: Couldn't resist to have a brief look to the amplifier. Turns out and this is no surprise, that we find some NE5534 together with some NEC µPA70A and NEC µPA71A FETs.
Attached is a table I found, in case you are looking for replacement.

-branadic-
« Last Edit: April 12, 2020, 09:06:00 am by branadic »
Metrology Meeting 2020 is canceled. Looking forward for MM2021
 


Share me

Digg  Facebook  SlashDot  Delicious  Technorati  Twitter  Google  Yahoo
Smf