Author Topic: Test Equipment Anonymous (TEA) group therapy thread  (Read 1530521 times)

med6753, Kosmic, wch, morris6, Carl_Smith, serg-el, Specmaster, factory, Cerebus and 27 Guests are viewing this topic.

Online mnementh

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #15925 on: September 06, 2018, 02:17:50 am »

Sometimes you just can't have nice things. Someone is gonna come along and destroy it. This is the retaining wall in front of my place. The road takes a very sharp curve at that very spot. It's been hit before, the last time was about 4 years ago.

Last week the landlord painted the wall the gray color you see here. This past Saturday, during the day in clear weather, this old fart in a brand new Acura fails to make the curve with the result as shown. Messed up his car real bad. It had to be towed. The speed limit on that road is 35 MPH. He must have been really flying. Karma got a dumbass.  >:D
I dunno... I'm with SpecMaster on this one. Painting that barrier wall grey, especially in today's batshit crazy world of constant stress, electronic leashes and jobs where they expect you to keep in touch and actually complete tasks while driving... It's like deliberately placing a booby-trap on the side of a busy highway. Sooner or later some booby is going to come along and get caught in it; the busier the highway, the sooner and more often. 

Look at the scene from this smaller perspective; at first glance, it looks like just a shoulder on the highway. We paint curbs on divided highways yellow for the same reason; I see this as being no different.
 
If too many distracted drivers hit it like that guy, the owner could be sued for creating a public safety hazard. People are going to hit that camouflaged wall, and no matter whose fault each individual accident is, that retaining wall is going to get smashed until it caves in.

Bottom line is it was a fuckwit stupid poor choice of color, but it won't be especially expensive to fix. Much less expensive than rebuilding the retaining wall.

 
On the flip side of that argument, when I was a teenager I had to fight with my local highway department over a 200-year-old hickory tree and the hand-laid flagstone retaining wall and stone steps that led up to the farmhouse I grew up in; they came in with a whole fleet of trucks and heavy equipment, thinking they were just going to bulldoze it all down as it was a "safety hazard" to fuckwits on the highway that ran between the house and our barn. The chief engineer (or whomever the hell drew the short straw) they sent up to get my release signature on this "very important public works project" tried to mansplain it away to this dumb hick country boy that they didn't even need our permission, as everything in question was on their "Right of Way"; in retrospect the scene was very much like the opening of HitchHiker's Guide.

I explained that this entire property was owned (even the mineral rights) with just-researched title history dating back to the early 1800s; it predated ALL local government by half a century and therefore was grandfathered before any new regulations, and he could shove his release forms right up his docket. I then parked my OWN bulldozer and two huge tractors in their way, and immediately called my grand-dad's solicitor, who gladly took the case on contingency.

I'm proud to say that construction was held up for two months while they wrangled it out; eventually they were forced to leave the tree and the entire stone structure alone as it was required to keep our historic home from sliding down the hill onto the highway. The solicitor made buckets of money, and the Highway Dept was forced to put up overlapping guardrails in front of all of it to retain the usability of driveways, sidewalks, family mailbox and stone steps.

They DID paint those guardrails with reflective Federal Yellow paint, however.

mnem
*ignorant asshole*
 
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Online Specmaster

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #15926 on: September 06, 2018, 03:05:21 am »
My HP3468A from that treasure trove in Farmingdale USA arrived today and once again due to diligence in examining the said photos and description has paid off handsomely, I now have another fully working and with in specification as regards to its calibration, another 5.5 digit meter. There's not a ding or scratch on it so cosmetically its in very good condition other than some dimwit has used a permanent marker on the top of it, but I believe I can remove or severely reduce the effect of that.

It however came with 4 broken spacers inside that hold the PCB in place, these as it happens are not required as it is held in with 4 screws anyway so these will be removed later and some photos taken for you guys to peruse. The only other thing is that it did not come with the internal battery and charging option, which I did originally think it did, thats not a major issue however as I will still have a HP3466A with that option if I need it.

In other news, I received today the other system board for the Tek TDS210 that I acquired as part of dual scope deal, the second scope was sold as "for spares" and now I have for a while 3 of these TDS210 scopes all working before I decide which ones to pass on again.

I also got myself 2 lovely Roberts mains radios recently FOC and now they are realigned, tuned up and just wanting on a couple of knobs and they will be ready for passing again, so its been a good day so far   :popcorn:
« Last Edit: September 06, 2018, 03:07:11 am by Specmaster »
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Online mnementh

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #15927 on: September 06, 2018, 03:06:17 am »
In Other News...

   Been working on & off all day to design myself a meter stand in SketchUp... teaching myself by doing  for to print it up, since my DE-5000 is on the way. 

All I can say is... this is software that is clearly made by and for architects and materials engineers, NOT for human beings with a wetware brain. It isn't just counter-intuitive... it is anti-intuitive.  :palm: Every... goddamn... step... of... the... way... it had to shit on me in some fashion.   :rant:  I've finally found a piece of software that is as much of an outright dicksore to use as Eagle.  |O

mnem
"Everybody needs something to believe in; I believe I'm going to bed." ~me

Aaaand the joy keeps on coming. Got everything set up to print; things actually went quite well. Set the printer up on my bench, leveled it, put up a curtain rod with my spool of filament since I knew I was printing a tall object... all before my first cuppa coffee. Then I put the card with my object in the printer and it all turned to shit.

The build volume in the firmware in my printer is still set to the generic stock figures of 300 x 300 x 400; the Tornado will actually do 310 x 320 x 400, and the difference between the two is the "margin" that Cura REFUSES to slice anything 300mm wide otherwise. Evidently Cura includes that margin on the finished GCODE; as the printer says the file dimensions are too big.  |O

Of course you can't reset the build volume from the front panel; that would be too easy.  |O |O

I have to plug the damned thing into a USB on my PC and learn how to use the freaking Marlin control panel... or do everything from the control line in the Arduino console like they did in the stone age.  |O |O |O

mnem
*Feeling like I'm the dead horse smoothee*  :horse:
 

Online Cerebus

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #15928 on: September 06, 2018, 04:14:01 am »
...tried to mansplain it away to this dumb hick country boy that they didn't even need ...

As my late friend Fred Wedlock used to say, in his pronounced West Country burr: "Just because we sounds like we walk through it all the time doesn't mean that we 'as it between our ears."
Anybody got a syringe I can use to squeeze the magic smoke back into this?
 

Online mnementh

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #15929 on: September 06, 2018, 04:29:41 am »
...tried to mansplain it away to this dumb hick country boy that they didn't even need ...

As my late friend Fred Wedlock used to say, in his pronounced West Country burr: "Just because we sounds like we walk through it all the time doesn't mean that we 'as it between our ears."
Yup. Of course, my inner voice is saying "Well if you don't need my permission, why the flupp are you weaseling your way up to my door for my signature?"

Uneducated doesn't mean stupid; and the existence of MBAs is proof that imbeciles can get a degree.  :palm:

mnem
"So this is a degree in buzzwords and making numbers lie? No wonder it pays so well." ~ me
« Last Edit: September 06, 2018, 04:40:08 am by mnementh »
 

Offline neo

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #15930 on: September 06, 2018, 04:35:12 am »
Tables done, at least the table bit itself, only my camera crapped out so i can't furnish you with pictures.


Imagine a picture of a rather large hunk of dead tree here.
A hopeless addict (and slave) to TEA and a firm believer that high frequency is little more than modern hoodoo.
 

Online mnementh

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #15931 on: September 06, 2018, 04:39:17 am »



mnem
 |O
 

Offline bitseeker

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #15932 on: September 06, 2018, 04:53:39 am »
I TEA.
 

Offline Berni

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #15933 on: September 06, 2018, 05:00:10 am »
Sometimes a TEA monster resurfaces...

https://www.eevblog.com/forum/buysellwanted/ebay-large-lot-75-100-units-no-reserve/

Damn you! Now i see some other items from that seller that i want now.
 

Offline bitseeker

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #15934 on: September 06, 2018, 05:24:25 am »
I TEA.
 

Offline Ice-Tea

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #15935 on: September 06, 2018, 06:49:52 am »
I'm about to rent office space so I have enough space for the gear I'm selling.

Can I join the club?  ;D
eBay shop with all the gear you need!
FS: Agilent 54815A, 54825A, R&S CMU200, CRTU, SFU, SMIQ06L, Marconi 6201B, Lecroy WP 950, 9354TM, Tek THS720P, Anritsu MG3671A 2.75G I/Q RF gen, Keithley 238 SMU
 

Offline tautech

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #15936 on: September 06, 2018, 06:54:49 am »
I'm about to rent office space so I have enough space for the gear I'm selling.

Can I join the club?  ;D
Oh goodie, another TEA enabler !  :clap:
Welcome aboard.
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Offline Ice-Tea

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #15937 on: September 06, 2018, 07:15:07 am »
Hou want a link to my ebay, don 't you?

DONT YOU?
eBay shop with all the gear you need!
FS: Agilent 54815A, 54825A, R&S CMU200, CRTU, SFU, SMIQ06L, Marconi 6201B, Lecroy WP 950, 9354TM, Tek THS720P, Anritsu MG3671A 2.75G I/Q RF gen, Keithley 238 SMU
 

Offline xrunner

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #15938 on: September 06, 2018, 07:39:35 am »
I'm about to rent office space so I have enough space for the gear I'm selling.

Can I join the club?  ;D

Can you be a member of the club? A member?

I think you just became eligible to become the president & CEO.  :-DD.
I am a Test Equipment Addict (TEA) - by virtue of this forum signature, I have now faced my addiction
 

Offline tautech

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #15939 on: September 06, 2018, 07:44:03 am »
I'm about to rent office space so I have enough space for the gear I'm selling.

Can I join the club?  ;D

Can you be a member of the club? A member?

I think you just became eligible to become the president & CEO.  :-DD.
Until Toploser decides to join up !  :scared:
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Online Specmaster

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #15940 on: September 06, 2018, 08:13:59 am »
Here are a few photos of the HP3468A that I promised you earlier today, the marker on the top of the meter that I mentioned can be seen in the first photo and you'll notice that the permanent mark has been erased using nothing more or less than a good old magic sponge eraser (dry), very pleased with the result. Might remove the sticker later using WD-40.

Going by the date codes on the chips, this was made around the later part of 1983 and I never had to do any cleaning this, it really was as clean it looks and the memory battery that retains the calibration data in RAM measures 3V so no immediate worries there and as mentioned early it still seems to be pretty well calibrated when checked against my voltage and current calibration references so I'm pleased with my 2 purchases from the Ebay seller that mnementh discovered his side of the pond. Both of them would have cost me at least double the cost, and that includes the shipping and import duty, to purchase in the same condition over here.

Who let Murphy in?
 

Offline xrunner

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #15941 on: September 06, 2018, 08:16:11 am »
Good equipment that.  :-+

Nice addition.
I am a Test Equipment Addict (TEA) - by virtue of this forum signature, I have now faced my addiction
 

Offline bitseeker

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #15942 on: September 06, 2018, 08:18:10 am »
I'm about to rent office space so I have enough space for the gear I'm selling.

Can I join the club?  ;D

Can you be a member of the club? A member?

I think you just became eligible to become the president & CEO.  :-DD.
Until Toploser decides to join up !  :scared:

But Ice-Tea has TEA in his screen name! :-DD
I TEA.
 

Online Specmaster

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #15943 on: September 06, 2018, 08:41:58 am »
Here's some photos of the 3 TDS210's doing a probe test, interesting thing is that each is set with the display to 45% contrast setting and each of the screens has a totally different colour to it?

I think I might have a problem here, I've gone from having no digital scopes, only analogues to having no analogues, 1 combi and 3 full on digital in just over a month  :palm:

Does anyone have any ideas as to why the screens vary so much?

Who let Murphy in?
 

Offline mtdoc

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #15944 on: September 06, 2018, 08:49:23 am »
Here are a few photos of the HP3468A

Nice catch!

In case you haven't seen it, here's a nice HP Journal article on the design of this meter from 1983.  Good read!.
 

Offline Cubdriver

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #15945 on: September 06, 2018, 08:54:04 am »
Here's some photos of the 3 TDS210's doing a probe test, interesting thing is that each is set with the display to 45% contrast setting and each of the screens has a totally different colour to it?

I think I might have a problem here, I've gone from having no digital scopes, only analogues to having no analogues, 1 combi and 3 full on digital in just over a month  :palm:

Does anyone have any ideas as to why the screens vary so much?

Are they that different when each is viewed head on?  Those older LCDs tend to have lousy off-axis viewing angles, and if you're relatively close taking the photo, then the center one is pretty much head on, the bottom one is being looked 'down' on, the the top viewed from below.

-Pat
If it jams, force it.  If it breaks, you needed a new one anyway...
 

Online bd139

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #15946 on: September 06, 2018, 08:55:54 am »
The older LCDs age as well. The bottom one looks like my Korg Triton did until I replaced the screen.
 

Offline djos

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #15947 on: September 06, 2018, 09:02:58 am »
The older LCDs age as well. The bottom one looks like my Korg Triton did until I replaced the screen.

Plus the older LCD manufacturing process had a reasonable amount of variability in it - that's why every old device, with an active matrix style LCD, had a contrast adjustment.
The impossible often has a kind of integrity which the merely improbable lacks.

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Online Specmaster

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #15948 on: September 06, 2018, 09:27:21 am »
Here's some photos of the 3 TDS210's doing a probe test, interesting thing is that each is set with the display to 45% contrast setting and each of the screens has a totally different colour to it?

I think I might have a problem here, I've gone from having no digital scopes, only analogues to having no analogues, 1 combi and 3 full on digital in just over a month  :palm:

Does anyone have any ideas as to why the screens vary so much?

Are they that different when each is viewed head on?  Those older LCDs tend to have lousy off-axis viewing angles, and if you're relatively close taking the photo, then the center one is pretty much head on, the bottom one is being looked 'down' on, the the top viewed from below.

-Pat
Here are the three scopes again, this time each one has been photographed on its own, in the same location and looking straight on to the screen from roughly the same position each time, The scope that was bottom on the group shot is the first one, the middle one is now the 2nd photo and the top one of the group is the third photo here.

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Offline tautech

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #15949 on: September 06, 2018, 10:03:50 am »
Spec, from what I remember from the one I had the last screen pic looks most representative of what they should look like.
I'd be checking the backlight oscillator in case it's drifted off frequency like the TDS1k models can.
Just 'near field' probe them all to see what frequency they're running at.
If they're set up the same as 1k models using push/pull bipolars on the backlight primary with frequency controlled by a RC, check the C hasn't headed towards pF values.
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