Author Topic: Test Equipment Anonymous (TEA) group therapy thread  (Read 1447329 times)

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Online GreyWoolfe

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #30575 on: May 02, 2019, 10:59:25 pm »
Stop making me feel hungry  :-DD

Seriously - excellent work.

Thanks. Which is your favourite cake?

Btw, the cake left of the two cheese cream tarts is a roasting apple cake. This cake is the one, which all my friends likes most.  :)

And TEA with some cake is imho always a good idea.  ^-^

I just set a honeycrisp apple pie out to cool and the whole house smells of fructose, flaky butter crust & cinnamon. I'm a horrible cheater though... my local grocery has a half-decent bakery; I buy from them and crisp up the crust in my convection oven when I'm ready to eat it.

Apple pie with a slice of sharp cheddar melted on top & coffee with too much HWC for breakfast... yummmmm.

I LOVE my convection oven, never doubt.  *settles in with a good book*

mnem

Is it a Publix, by chance?  The Publix here has a great bakery for being in a grocery store.  BU, your work looks fantastic and probably tastes it also.  I am a good cook (not chef) but baking eludes me.  Probably because it is formulaic, where as when I am making Italian food, if the house smells like it did growing up, I have it right.  No recipes, playing with ingredients until it is there.
That which doesn't kill you still requires a co-pay.
 
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Offline Ero-Shan

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #30576 on: May 02, 2019, 11:56:36 pm »
We're not done yet. The Solartron week continues ...

This one made me think about categories for test equipment. And I came up with:

Metrology grade
Laboratory grade
Workshop grade
Consumer grade

The 7061 clearly belongs to the laboratory grade, but the 7045, the topic of this post, has to be content with 'workshop grade', I'm afraid.

My little stack of 7045s:



The tilted front makes sense for desktop use, but is a nuisance when you want to stack things. They could have tilted without raising it, but made the wrong decision, IMHO. As the device is rather light, pressing on the front lifts the back.
The plastic is horrible. These are 3 I grabbed from several more. And each of them had severe issues with the housing, often they were held together by tape because the set-in nuts for the screws were cracked out of the plastics. Despite the light weight I had trouble lifting them from their resting space: The rubber feet stuck like hell to the underground. No good start trying to seduce me.  ???

I started with the uppermost, plugging in mains. Doesn't work. Lifting it, I find the mains plug falling out. What the ... What did they do here? The C14 receptable is recessed and my collared C13 plug can't be plugged in deep enough. Some designers really deserve some bashing.



Using another cable with a long plug the meter can be switched on and shows the 10.0 volts, or what it thinks the voltage is:



I have to confess that I actually plugged the test leads into the wrong sockets at first, because of the lousy lettering.



I won't bore you with the resistance measurements - they were awfully off.
Instead we'll take a look at the inside, like with the others:



There's a holder for 4 D size NiCd cells, luckily it is empty (and not even connected). Away it goes:



That's better. Clear signs of being recapped:



A tidy underside:



And crappy plastics:



The second and third worked better. Even the resistance measurement (1 kΩ) was good (Solartron seems to be good at this):



The underside clearly explains what the internal circuitry looks like for the DUT. Nicely done:



In comparison with e.g., the Fluke 8050A, the 7045's display is much better, but in all other respects I'd prefer the Fluke.
Your mileage may vary.
 
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Offline Ero-Shan

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #30577 on: May 03, 2019, 12:05:22 am »
Quote from: Ero-Shan on Yesterday at 09:52:05
(And don't ask me what 'GLUG' stands for - I haven't found the definition yet.)


It comes from "a small drink", such as when, if you were passing a mug of beer around and each person took a 'glug' from the mug so as to leave some for the next in line. The best definition by the engineers at Solartron is in this paragraph from the 7075 maintenance manual:

When I read 'glug', the first thing that popped up in my mind was this: The onomatopoetic word for drinking, but that seemed just too remote.

Quote
As you so rightly say, it's about having respect for the reader.

Thank you very much. At least I'm not alone.
 

Offline mnementh

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #30578 on: May 03, 2019, 12:12:15 am »
Glug is similar in concept to a nybble being half a byte. Pretty straightforward, actually. ;)


I just set a honeycrisp apple pie out to cool and the whole house smells of fructose, flaky butter crust & cinnamon. I'm a horrible cheater though... my local grocery has a half-decent bakery; I buy from them and crisp up the crust in my convection oven when I'm ready to eat it.

Apple pie with a slice of sharp cheddar melted on top & coffee with too much HWC for breakfast... yummmmm.

I LOVE my convection oven, never doubt.  *settles in with a good book*

mnem
Is it a Publix, by chance?  The Publix here has a great bakery for being in a grocery store.  BU, your work looks fantastic and probably tastes it also.  I am a good cook (not chef) but baking eludes me.  Probably because it is formulaic, where as when I am making Italian food, if the house smells like it did growing up, I have it right.  No recipes, playing with ingredients until it is there.

Naah... it's a Kroger. They are a crapshoot; I've lived next to a dozen of 'em since I moved to Tejas, and maybe 4 of 'em had what I'd consider a decent bakery. Same with HEB, though I feel that across the chain, their meat dept standards are generally at least an order of magnitude better than anything short of Boar's Head or similar "upscale" meateries.

Texas is, in general, an utterly uncultured cesspool of commercial-hype bullshit in every respect. Food especially. Every block has a dozen BBQ, Mexican or Tex-Mex eateries proclaiming to be "the real taste of Texas" or somesuch... in reality about 1 in 10 serves anything I'd consider to be edible, and 1 in 10 of those serve what I'd call actual "food".

mnem
If I never smell Mexican food again in my life it'll be too fucking soon.
« Last Edit: May 03, 2019, 12:15:05 am by mnementh »
 

Online med6753

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #30579 on: May 03, 2019, 12:40:52 am »
I'm sure you heard the saying "Everything's bigger in Texas". Well, everything's bullshit in Texas because they are so full of themselves.  >:D
An old gray beard with an attitude.
 

Offline mnementh

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #30580 on: May 03, 2019, 12:59:11 am »
Quote from: mnementh
Glug is similar in concept to a nybble being half a byte. Pretty straightforward, actually. ;)

huh.

There is another possible source for the concept: the "glug" point of an ideal bottle is a fluid dynamics concept; the point at which an inverted vessel full of liquid will "glug" due to the imbalance between atmospheric pressure and partial vacuum in the vessel created by the weight of the liquid.

These appear to be established physics concepts and even referred to as an "oscillator". If similarly applied to the flow of electrons in any of the common feedback-type oscillator circuits, a similar relationship is evident.

https://physics.stackexchange.com/questions/15950/what-is-the-formula-for-the-glug-point

http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.575.9453&rep=rep1&type=pdf

mnem
 :wtf:
 

Offline kj7e

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Online tggzzz

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #30582 on: May 03, 2019, 02:48:40 am »
Quote from: Ero-Shan on Yesterday at 09:52:05
(And don't ask me what 'GLUG' stands for - I haven't found the definition yet.)


It comes from "a small drink", such as when, if you were passing a mug of beer around and each person took a 'glug' from the mug so as to leave some for the next in line. The best definition by the engineers at Solartron is in this paragraph from the 7075 maintenance manual:

When I read 'glug', the first thing that popped up in my mind was this: The onomatopoetic word for drinking, but that seemed just too remote.

Also the glug-glug-glug sound when slowly pouring a liquid out of a narrow-necked bottle, e.g. wine.

Quote
Quote
As you so rightly say, it's about having respect for the reader.

Thank you very much. At least I'm not alone.

Such respect is no longer common, which illustrates the value of professional editors and it not being too easy to publish stuff
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
 
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Offline 0culus

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Offline 0culus

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #30584 on: May 03, 2019, 03:34:12 am »
Got my second new-in-the-package P6106A today. Now the trick will be finding two more because I am going to be getting another 7A26 relatively soon.  :-DD
 

Online Specmaster

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #30585 on: May 03, 2019, 05:11:41 am »
@Ero-Shan, Yep, the plastics on those 7045 is pure crap, I used to have one of them and I'd say that they were more consumer grade personally. The one that you showing 1.0000k, I see has the dreaded missing LED indicator telling the user what range it is, V, I, R etc.

I soon got shot of my one of those, although it was spot on across all ranges, the plastic case was a rubbish, the push buttons would stick if I stacked anything on top because the plastics was broken away and that tilting display did nothing to help either.
Who let Murphy in?
 

Offline Neomys Sapiens

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #30586 on: May 03, 2019, 05:49:09 am »
@Ero-Shan, Yep, the plastics on those 7045 is pure crap, I used to have one of them and I'd say that they were more consumer grade personally. The one that you showing 1.0000k, I see has the dreaded missing LED indicator telling the user what range it is, V, I, R etc.

I soon got shot of my one of those, although it was spot on across all ranges, the plastic case was a rubbish, the push buttons would stick if I stacked anything on top because the plastics was broken away and that tilting display did nothing to help either.
Yes, the plastic....
After I took pictures of the inside for someone, I lost one of the standoff threads. Otherwise, I found it to be quite reliable and stable (electrically). No problems with the buttons on mine.
 

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #30587 on: May 03, 2019, 06:17:48 am »
Yes, it was down to the poor plastics, part of the sides, where they overlap had broken off on mine so the top half was sitting too low and catching the button mechanism, I had to improvise some spacers to over come the problem.
Who let Murphy in?
 

Offline wch

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #30588 on: May 03, 2019, 07:39:55 am »
Over the last month, lots of hours devoted to helping two people sort through piles of spontaneously acquired gear. I've enjoyed helping and I've acquired some fixable gear and some components at good prices for my effort. Also lots of time rationalizing my ham radio and test gear and parts collection before it got completely out of control. So I haven't smelt solder smoke or suffered a bout of squinty-eye from searching for some part I dropped under my bench in quite a while.

Today I took a break from the pile of sorted components spreadsheet and spent a couple of hours building a new extender for my TM500 plugins. Who knew that soldering six or eight dozen JAMA connector pins to a PCB could be so much fun?   :-DD   I also made a big leap in my SMD hand soldering skills, so this board looks a lot better than my last SMT project, which took a fair amount of rework. I think I am ready to take on an SMD kit, as long as I can pick up the parts with tweezers...

I also made an interesting find this week, of which I will post photos later. There will be a rant wrapped around the pics.

Just sayin'   :rant:
« Last Edit: May 03, 2019, 07:41:55 am by wch »
Ham radio, the TEA gateway drug: just say no to HF
 

Offline Housedad

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #30589 on: May 03, 2019, 07:41:12 am »
 :-// I don't know why, but I guess I just had a hole in my wants that needed to be filled with a Universal counter instead of just a plain frequency counter.  I bought a HP 5316B counter on Ebay last night.  I think it will look good on top of my HP 5385A.

Oh, yeah, I also bought what is probably the last surviving supposedly 'new' display module for a 5385A.  What the hell.  Peace of mind.
« Last Edit: May 03, 2019, 07:46:22 am by Housedad »
At least I'm still older than my test equipment
 
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Offline 0culus

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #30590 on: May 03, 2019, 07:51:59 am »
Very nice! Universal counters come in handy. I love my 5335A.
 

Offline kj7e

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #30591 on: May 03, 2019, 08:04:47 am »
I've had a few 5316B's, very nice counters.
 

Offline mnementh

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #30592 on: May 03, 2019, 08:35:45 am »
Very nice! Universal counters come in handy. I love my 5335A.

Awesome! How many did you count?

So far I'm up to ONE. And I counted that on one hand. With direct observation.  :-DD

mnem
 

Offline 0culus

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #30593 on: May 03, 2019, 08:57:06 am »
Very nice! Universal counters come in handy. I love my 5335A.

Awesome! How many did you count?

So far I'm up to ONE. And I counted that on one hand. With direct observation.  :-DD

mnem

Many, many MHzes  >:D
 

Offline mnementh

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #30594 on: May 03, 2019, 09:33:06 am »
Very nice! Universal counters come in handy. I love my 5335A.
Awesome! How many did you count?

So far I'm up to ONE. And I counted that on one hand. With direct observation.  :-DD

mnem
Many, many MHzes  >:D

So how many universes is that? They all still fit in just the one, right?  :-DD

mnem
« Last Edit: May 03, 2019, 09:36:34 am by mnementh »
 
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Offline wch

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #30595 on: May 03, 2019, 09:40:26 am »

For your reading pleasure, Here's today's

FAILURE   :-BROKE    FAILURE     :-BROKE       FAILURE       :-BROKE      FAILURE

My extender kit build went swimmingly until I realized that I soldered all the through-hole components on the wrong side of the board in spite of the fact that there is a silkscreen and this is the second extender I have built.   

|O

I say to myself, Here's the bright side. You get to try out the new FR301 desoldering tool you bought and which has been in the box, unused, for a month... .   I get out the FR301, my solder wick, flux pen, etc. I clip parts off the board, crank up the new tool and clear the board without lifting a pad. I even managed to get the test points out without damaging them.

Not bad, bill, looks like you dodged a bullet.

I solder the test points onto the right side of the board, dig up five new LEDs, and being careful to put them in the board in the right orientation, solder four of them into place, when I realize that I've put them where the two pin jumpers are to be installed.

 |O   |O   |O 

I turn off the soldering station and lights and slowly back away from the bench. 

I don't think I am going to cook dinner tonight. Probably a good evening for ordering in.


Ham radio, the TEA gateway drug: just say no to HF
 
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Offline mnementh

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #30596 on: May 03, 2019, 09:57:22 am »
Better have SWMBO do it. No telling what damage you can do with a smartphone in your current state.  :-DD

mnem
DOOOD! You found the remote to my suborbital crowbar launcher!!!   :-+  *FWOOOOOOOM!* Dude... my car... Seriously? I just made the last payment... :palm:
« Last Edit: May 03, 2019, 10:12:13 am by mnementh »
 
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Offline 0culus

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #30597 on: May 03, 2019, 11:06:45 am »
So today brought a new toy from kj7e, my very own 53310 Modulation Domain Analyzer.  :-DMM The good news is that this is an awesome toy that I never knew I needed.  :-DD


...the sad news is that UPS managed to break off one of the rear panel "feet" even with the excellent packing job.   :-- I've got all the pieces so tomorrow I'm going to try to JB weld it back together.
 
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Offline 0culus

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #30598 on: May 03, 2019, 11:25:13 am »
And for good measure a VOR (VHF Omnidirectional Range) test signal from my 8664A sig gen.
 
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Offline Kosmic

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #30599 on: May 03, 2019, 12:30:35 pm »
I decided to try the old Dumont 274-A Oscillograph (I guess the word oscilloscope was not invented yet  :-DD) I got part of the lot I fetched earlier this week. The inside was kind of clean but was still waiting for an explosion when I plugged-in the beast. I was astonished to see that it was kind of working. Probably need a good recap though :-DD

Talking about caps I'm probably too young but it's the first time I see those brown capacitor in wax. They look like wine bottle cork.







« Last Edit: May 03, 2019, 02:08:45 pm by Kosmic »
 
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