Author Topic: Test Equipment Anonymous (TEA) group therapy thread  (Read 4328966 times)

med6753, Wolfgang, Gromitt, bd139, graybeard, Robert763, eighty-one, FransW and 22 Guests are viewing this topic.

Offline mnementh

  • Super Contributor
  • ***
  • Posts: 11011
  • Country: ca
  • *Escaping The Suck*
Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #55475 on: April 12, 2020, 01:12:52 pm »
@Brumby: Extra points for resourcefulness!!!  :-+

*adds line item to "When I am an evil Overlord" list: Indenture all programmers responsible for the Windows HAL. Force them to write new programming language using ONLY EDLIN: BRAINFUCK (Yes, those colors will be part of the name, and REQUIRED in all correspondence and markup notes). Allow them to drink only green tea Chai and snack all they want, but only unbuttered, dry white toast. All shifts will be in Centaurian time.* >:D

mnem
 
Make them write it Wordpad as well.  :-DD

Look again; it's worse: EDLIN.  >:D

mnem
HAPPY EASTER all you maniacs!!!
« Last Edit: April 12, 2020, 01:15:31 pm by mnementh »
 

Offline URI

  • Frequent Contributor
  • **
  • Posts: 678
  • Country: de
Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #55476 on: April 12, 2020, 01:24:41 pm »
Ooh this is interesting: https://www.ebay.co.uk/itm/233507852253

10M to 15Ghz sig gen for a not too scary price.

Expect severe spectral impurity...    >:D
There must be some difference to HP/R&S/Marconi/Fluke siggens that do less in a much bigger form factor with densely filled housings...   :horse:

I am actually considering an FA-2 at the moment.

Saw that a while ago and was quiet impressed.
Is there a teardown somewhere or information how it is built?

edit: found a thread just here in the eevblog forum:
https://www.eevblog.com/forum/metrology/bg7tbl-fa1-frequency-analyzer/
Lady heather works with it, too.  Might be worth considering then...   :palm:   :scared:
« Last Edit: April 12, 2020, 01:50:20 pm by URI »
A life without TEA is possible but pointless.
 

Online tggzzz

  • Super Contributor
  • ***
  • Posts: 13197
  • Country: gb
    • Having fun doing more, with less
Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #55477 on: April 12, 2020, 01:31:43 pm »
Ooh this is interesting: https://www.ebay.co.uk/itm/233507852253

10M to 15Ghz sig gen for a not too scary price.

Expect severe spectral impurity...    >:D
There must be some difference to HP/R&S/Marconi/Fluke siggens that do less in a much bigger form factor with densely filled housings...   :horse:

In my ignorance, I was impressed with the accuracy and phase noise of my LMX2954 eval board.

But the "square" wave output is likely to contain a few harmonics :) If that matters, look on it as a reason to understand and implement YIG filters, or notch filters, or ...
There are lies, damned lies, statistics - and ADC/DAC specs.
Glider pilot's aphorism: "there is no substitute for span". Retort: "There is a substitute: skill+imagination. But you can buy span".
Having fun doing more, with less
 

Online bd139

  • Super Contributor
  • ***
  • Posts: 18126
  • Country: gb
Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #55478 on: April 12, 2020, 01:41:37 pm »
That's surely an excuse to buy an old HP 141T/8555A crate and play with distributed element filters though isn't it which surely can't be bad :)
 

Offline Kosmic

  • Super Contributor
  • ***
  • Posts: 1748
  • Country: ca
Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #55479 on: April 12, 2020, 02:17:56 pm »
Ooh this is interesting: https://www.ebay.co.uk/itm/233507852253

10M to 15Ghz sig gen for a not too scary price.

Expect severe spectral impurity...    >:D
There must be some difference to HP/R&S/Marconi/Fluke siggens that do less in a much bigger form factor with densely filled housings...   :horse:

I am actually considering an FA-2 at the moment.

Saw that a while ago and was quiet impressed.
Is there a teardown somewhere or information how it is built?

edit: found a thread just here in the eevblog forum:
https://www.eevblog.com/forum/metrology/bg7tbl-fa1-frequency-analyzer/
Lady heather works with it, too.  Might be worth considering then...   :palm:   :scared:

I posted some pictures last December https://www.eevblog.com/forum/testgear/test-equipment-anonymous-(tea)-group-therapy-thread/msg2826930/#msg2826930
 

Online bd139

  • Super Contributor
  • ***
  • Posts: 18126
  • Country: gb
Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #55480 on: April 12, 2020, 02:23:47 pm »
Just scrolled down a bit to see if I actually picked up the FA-2 postings before and discovered this post from me:

After much reflection this morning, I have decided to stay put. I'm going to sell up, cash in all of my investments and dig through some impending shit, then buy a small house somewhere semi-remote but accessible, attempt to get energy self-sufficient, dig a fucking moat and forget the human race exists.

Should have started back then  :-DD :-DD :-DD
 
The following users thanked this post: Specmaster

Offline mnementh

  • Super Contributor
  • ***
  • Posts: 11011
  • Country: ca
  • *Escaping The Suck*
Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #55481 on: April 12, 2020, 02:26:48 pm »
"A journey of 1000 miles begins with a single step."   ;)

mnem
And, uhh... don't let the screen door hit ya on yer way out. >:D
 
The following users thanked this post: Specmaster, bd139

Offline mnementh

  • Super Contributor
  • ***
  • Posts: 11011
  • Country: ca
  • *Escaping The Suck*
Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #55482 on: April 12, 2020, 02:31:04 pm »
[attachimg=1]
« Last Edit: April 12, 2020, 02:35:05 pm by mnementh »
 
The following users thanked this post: Specmaster, bd139, grizewald

Online Brumby

  • Supporter
  • ****
  • Posts: 10555
  • Country: au
Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #55483 on: April 12, 2020, 02:58:41 pm »
Poked a meat thermometer through the cardboard box to get an idea of the actual air temp inside ... only 50ºC - but I am happy enough with that.  Ready to call it a night, so I have turned it off and will leave it alone overnight.  Will check it in the morning.
 

Offline grizewald

  • Frequent Contributor
  • **
  • Posts: 515
  • Country: se
Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #55484 on: April 12, 2020, 03:05:14 pm »
@mansaxel



I was sure I'd got myself three standard resistors for 150kr there!

Grrrr....












 :-DD
  Lord of Sealand
 

Offline URI

  • Frequent Contributor
  • **
  • Posts: 678
  • Country: de
Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #55485 on: April 12, 2020, 03:12:00 pm »
Ooh this is interesting: https://www.ebay.co.uk/itm/233507852253

10M to 15Ghz sig gen for a not too scary price.

Expect severe spectral impurity...    >:D
There must be some difference to HP/R&S/Marconi/Fluke siggens that do less in a much bigger form factor with densely filled housings...   :horse:

I am actually considering an FA-2 at the moment.

Saw that a while ago and was quiet impressed.
Is there a teardown somewhere or information how it is built?

edit: found a thread just here in the eevblog forum:
https://www.eevblog.com/forum/metrology/bg7tbl-fa1-frequency-analyzer/
Lady heather works with it, too.  Might be worth considering then...   :palm:   :scared:

I posted some pictures last December https://www.eevblog.com/forum/testgear/test-equipment-anonymous-(tea)-group-therapy-thread/msg2826930/#msg2826930

Ah, thanks!
Faded memories slowly come back again..   :palm:
A life without TEA is possible but pointless.
 

Offline Neomys Sapiens

  • Super Contributor
  • ***
  • Posts: 2060
  • Country: de
Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #55486 on: April 12, 2020, 03:12:34 pm »
Can't stand back here!

To comment on the matter of the day; I have always admired the Romans for the degree of standardisation and consequential application of those in military as well as judicial matters. They should have used SPAX.
« Last Edit: April 12, 2020, 03:14:34 pm by Neomys Sapiens »
 

Online bd139

  • Super Contributor
  • ***
  • Posts: 18126
  • Country: gb
Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #55487 on: April 12, 2020, 03:26:16 pm »
Found the X201 charger finally in the shite cupboard. It actually powers up. Battery is completely hosed. No disk in it. It's an i5 and has 4Gb of RAM and I had forgotten how amazingly good the keyboard is. It's a unit I custom built a few years ago with no touchpad and IPS display. Now trying to find an SSD. Sure I had a spare one around.

This variety but no horrible touchpad ... (it's buried already under more crap. Photos later if I get around to it):

 
The following users thanked this post: Specmaster

Offline AVGresponding

  • Super Contributor
  • ***
  • Posts: 1678
  • Country: england
  • Exploring Rabbit Holes Since The 1970s
Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #55488 on: April 12, 2020, 03:31:38 pm »
SOS: https://www.ebay.co.uk/itm/Tektronix-222PS-Oscilloscope-New-Batteries-Calibrated-Case-Excellent/324127770720

Clearly this should be purchased by med immediately and rescued from, I mean, wtf? Someone thinks its a Fluke or something?!?
  :scared:
nuqDaq yuch Dapol?
Addiction count: AVO-BlackStar-Brymen-Fluke-Hameg-HP-Keithley-IsoTech-Mastech-Megger-Micronta-Solartron-Tektronix-Thurlby-Time Electronics-TTi-UniT
 
The following users thanked this post: Specmaster

Offline mnementh

  • Super Contributor
  • ***
  • Posts: 11011
  • Country: ca
  • *Escaping The Suck*
Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #55489 on: April 12, 2020, 03:37:54 pm »


I like it; it's cheerful. VERY season-appropriate.  :-DD

mnem
 >:D
« Last Edit: April 12, 2020, 03:39:56 pm by mnementh »
 
The following users thanked this post: Mortymore, bd139

Offline grizewald

  • Frequent Contributor
  • **
  • Posts: 515
  • Country: se
Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #55490 on: April 12, 2020, 03:43:09 pm »
... Now trying to find an SSD. Sure I had a spare one around.

I've got an Intel 160GB that was originally installed in my X220 if you don't find one.
  Lord of Sealand
 

Offline mnementh

  • Super Contributor
  • ***
  • Posts: 11011
  • Country: ca
  • *Escaping The Suck*
Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #55491 on: April 12, 2020, 03:44:25 pm »
Found the X201 charger finally in the shite cupboard. It actually powers up. Battery is completely hosed. No disk in it. It's an i5 and has 4Gb of RAM and I had forgotten how amazingly good the keyboard is. It's a unit I custom built a few years ago with no touchpad and IPS display. Now trying to find an SSD. Sure I had a spare one around.

This variety but no horrible touchpad ... (it's buried already under more crap. Photos later if I get around to it):


Win10 should install and authenticate with the key burned into the BIOS on that one. Usually even get Pro/64-bit.  :-+ Win10 will automatically optimize the file structure for SSD and enable TRIM too. Just make sure you enable AHCI mode in BIOS before you start the install and you should be golden.  :-+

mnem
*current mood: diabetic coma-y*
« Last Edit: April 12, 2020, 03:55:34 pm by mnementh »
 
The following users thanked this post: Specmaster

Online bd139

  • Super Contributor
  • ***
  • Posts: 18126
  • Country: gb
Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #55492 on: April 12, 2020, 03:54:10 pm »
... Now trying to find an SSD. Sure I had a spare one around.

I've got an Intel 160GB that was originally installed in my X220 if you don't find one.

Found a 128 gig Samsung 840 pro in the cupboard so no need. Thanks for the offer though  :-+

Found the X201 charger finally in the shite cupboard. It actually powers up. Battery is completely hosed. No disk in it. It's an i5 and has 4Gb of RAM and I had forgotten how amazingly good the keyboard is. It's a unit I custom built a few years ago with no touchpad and IPS display. Now trying to find an SSD. Sure I had a spare one around.

This variety but no horrible touchpad ... (it's buried already under more crap. Photos later if I get around to it):


Win10 should install and authenticate with the key burned into the BIOS on that one. Usually even get Pro/64-bit.  :-+ Win10 will automatically optimize the file structure for the SSD and enable TRIM too. Just make sure you enable AHCI mode in BIOS before you start the install and you should be golden.  :-+

mnem
*current mood: diabetic coma-y*

Yeah. It had windows 8.1 on it I think last time I used it. Should be fine. It may however get centos on it. Haven’t decided yet.

Nothing like an old thinkpad  :-+
 
The following users thanked this post: grizewald

Offline Neomys Sapiens

  • Super Contributor
  • ***
  • Posts: 2060
  • Country: de
Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #55493 on: April 12, 2020, 03:59:16 pm »


I like it; it's cheerful. VERY season-appropriate.  :-DD

mnem
 >:D
[attach=1]
It's another Pikachu in disguise.
 
The following users thanked this post: mnementh

Offline Saskia

  • Super Contributor
  • ***
  • Posts: 1520
  • Country: de
  • you unlock this door with the key of imagination
Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #55494 on: April 12, 2020, 04:04:00 pm »
*looking at ebay offer*
*must resist*
*voice booming RESISTANCE IS FUTILE*
the scope will be assimilated ---
 
The following users thanked this post: mnementh

Offline grizewald

  • Frequent Contributor
  • **
  • Posts: 515
  • Country: se
Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #55495 on: April 12, 2020, 04:06:45 pm »

"Like a lot of PHP code, this code wasn't written. It happened."



This is the canonical design review of PHP. Now on its tenth year and still most relevant.

I remember looking at some PHP code a long time ago. The code which implements the IPBoard forum software. I looked for about 30 minutes until blood started dripping from my nose and retreated in horror vowing never, ever to get involved with anything which involves PHP. Reading the article you linked explains the blood and confirms the wisdom of my vow.

Seriously, why would anyone use such a cesspool of a language for anything?
  Lord of Sealand
 

Offline edavid

  • Super Contributor
  • ***
  • Posts: 3027
  • Country: us
Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #55496 on: April 12, 2020, 04:45:31 pm »
I don't know what a lot of that stuff is either.  ;D I did a sort of adapters that fit the probes (rear) and all the stuff that doesn't or is unknown. That's the pile in the foreground. I'm going to bag them up and put it in the TEA closest with the rest of the loose Tek parts.



The white things are probe hangers.

The red things are BNC to spring hook adapters (stick into a BNC female, then clip your probe to them).

The funky banana plugs screw onto the probes, then plug into a banana jack or SO239.
 
The following users thanked this post: bitseeker

Offline mansaxel

  • Super Contributor
  • ***
  • Posts: 1356
  • Country: se
  • SA0XLR
    • My very static home page
Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #55497 on: April 12, 2020, 05:20:37 pm »

I was sure I'd got myself three standard resistors for 150kr there!

Grrrr....


Excellent. Saves me from gloating about them. :-DD  Seller actually didn't have an idea what it was; he messaged me and wondered WTF he'd sold, since the bidding was so fierce. It wasn't only you and me, though. There were at least 3 active  bidders. So, if there's lurkers about, step out and post.

Pics coming as I've received them. Because Easter is, I don't think they will start travelling until Tuesday.

Online med6753

  • Super Contributor
  • ***
  • Posts: 8055
  • Country: us
  • Tek nut
Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #55498 on: April 12, 2020, 05:21:05 pm »
SOS: https://www.ebay.co.uk/itm/Tektronix-222PS-Oscilloscope-New-Batteries-Calibrated-Case-Excellent/324127770720

Clearly this should be purchased by med immediately and rescued from, I mean, wtf? Someone thinks its a Fluke or something?!?
  :scared:


Tempting but it looks like Saskia already has her eye on it so I'll let it go.
An old gray beard with an attitude.
 
The following users thanked this post: Saskia

Offline grizewald

  • Frequent Contributor
  • **
  • Posts: 515
  • Country: se
Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #55499 on: April 12, 2020, 05:26:10 pm »

I was sure I'd got myself three standard resistors for 150kr there!

Grrrr....


Excellent. Saves me from gloating about them. :-DD  Seller actually didn't have an idea what it was; he messaged me and wondered WTF he'd sold, since the bidding was so fierce. It wasn't only you and me, though. There were at least 3 active  bidders. So, if there's lurkers about, step out and post.

Pics coming as I've received them. Because Easter is, I don't think they will start travelling until Tuesday.

You ended up paying way more than I was prepared to pay for that lot, even though it's quite a haul. I was amazed at your fast fingers when you got outbid in the closing second there!

Great lot title though: "Things"

 :-DD

(You wouldn't have recognised me in the list of bidders though. I'm "mpj001" there.)
« Last Edit: April 12, 2020, 05:31:24 pm by grizewald »
  Lord of Sealand
 


Share me

Digg  Facebook  SlashDot  Delicious  Technorati  Twitter  Google  Yahoo
Smf