Author Topic: Test Equipment Anonymous (TEA) group therapy thread  (Read 1443388 times)

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Offline mansaxel

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #31650 on: May 19, 2019, 06:41:16 pm »
:-+                                                          :--

Actually, I think what -hp- did to themselves and others makes logotype changes sort of petty.

The shift from science company to peddler of PC's (and now they are trying to shove badly written enterprise bloatware down our throats instead of that) is bad enough. They did not stop there:

They bought Compaq (which had bought d|i|g|i|t|a|l and sort of kept that spirit alive) and promptly killed Tru64 in favour of H-PUKES, my least favourite expensive Unix. Tru64 is a quite nice BSD derivate, and the Alpha is a wonderful CPU. The Itanic, not so much.

Only serves them right that they're forced by DoD contracts to maintain VMS like, forever..

/ex Tru64 and VMS admin

Online beanflying

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #31651 on: May 19, 2019, 08:27:09 pm »
Some more slight tweakage on power and speed to come but this one isn't too shabby. Certainly above bodge standards  :-DD

Engraving is on the back side btw apart from a wash and nylon brush scrub zero cleanup.
« Last Edit: May 19, 2019, 08:28:50 pm by beanflying »
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Offline bd139

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #31652 on: May 19, 2019, 09:54:41 pm »
:-+                                                          :--

Actually, I think what -hp- did to themselves and others makes logotype changes sort of petty.

The shift from science company to peddler of PC's (and now they are trying to shove badly written enterprise bloatware down our throats instead of that) is bad enough. They did not stop there:

They bought Compaq (which had bought d|i|g|i|t|a|l and sort of kept that spirit alive) and promptly killed Tru64 in favour of H-PUKES, my least favourite expensive Unix. Tru64 is a quite nice BSD derivate, and the Alpha is a wonderful CPU. The Itanic, not so much.

Only serves them right that they're forced by DoD contracts to maintain VMS like, forever..

/ex Tru64 and VMS admin

Ex HPUX. Agree with you.  :-DD

We actually bought a load of HP9000 N class kit expecting there to be plug in Itanium magic down the line. Nope! :(
 

Online xrunner

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #31653 on: May 19, 2019, 09:56:24 pm »
Some more slight tweakage on power and speed to come but this one isn't too shabby. Certainly above bodge standards  :-DD

Engraving is on the back side btw apart from a wash and nylon brush scrub zero cleanup.

Here's one I did on the 3D printer -
I am a Test Equipment Addict (TEA) - by virtue of this forum signature, I have now faced my addiction
 

Offline bd139

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #31654 on: May 20, 2019, 01:30:26 am »
Sooo need some DMM leads.

What's the betting these are dodgy ones?

https://www.ebay.co.uk/itm/153002583405
 

Offline Mr. Scram

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #31655 on: May 20, 2019, 02:09:26 am »
Sooo need some DMM leads.

What's the betting these are dodgy ones?

https://www.ebay.co.uk/itm/153002583405
From what I've seen so far they seem to be legit, or the difference is small enough to not make much of a difference. The question is whether you can depend on them when it matters.
 

Online mnementh

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #31656 on: May 20, 2019, 02:30:51 am »
   Prosthetic limb implant operation success on the 2465, thanks Mnem !  :clap:
That's no prosthesis; those are OEM baybee! "As gewd as the gewd laird made 'er wit'!" You are a limb transplant surgery GOD!  :-DD

Glad I was able to help out.  ;D

:-+   :--

A keenly astute allegory for the evisceration the company suffered, both organizationally and spiritually, at the hands of the investors' cabal and that psycho-bitch-from-Hell-on-acid.

Sooo need some DMM leads.

What's the betting these are dodgy ones?

https://www.ebay.co.uk/itm/153002583405

That's about the right price for the real thing but the leads look a little more translucent than they should be to me, so could be Pliovic instead of real silicone; and if counterfeit, not the real hard-point high-nickel steel the tips are supposed to be. Those non-modular TL71s are only $20-ish list price.

A quick look at the vendor's other stuff shows them selling a lot of China-direct merch, and lots of the kind of "Fluke" goods that get counterfeited.

Not sure about the "Fluke" IR thermometer, and I think the T5-RLS leads haven't been counterfeited yet... it's REALLY hard to say, given the other goods for sale by the vendor. Probably NOT a Fluke "authorized store".

mnem
*Fluke-ily*
 

Offline tggzzz

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #31657 on: May 20, 2019, 03:11:16 am »
Today at half past six I wanted to continue my repair job. Hooked a scope to TP1951 (which, according to the SM, should give strong hints regarding the shorted rail). Power on - and the damn thing comes to life!

Recap the PSU. All of the bloody electrolytics. Even the startup electrolyic that ensured I could only do one test every 12 hours.

Quote
However, the device is still full of our beloved tants.

Probably worse than you imagine. Several 15V tant beads on a 13V PSU rail, and none of them are on the PSU schematic.

C911 will take out R965. Alright, I'll be nice. Those are on schematic 17 Power Distribution, but there are others on that rail on other diagrams.

Quote
And the switch decks are untested yet (apart from choosing the right sensitivity, which showed no apparent problems with deck A).

Don't forget a major advantage of the 485: it has four attenuators. Two are bog standard, but two are 50ohm. The advantage is most scopes merely bung a 50ohm resistor in parallel with the 1Mohm attenuator - which means there's also a 15pF-20pF in parallel with the 50ohm :(

Quote
With the popularity of the 485 and the unpopularity of tantalum caps around the brotherhood, there probably exists a list of them already that can be used to order replacement caps?

Probably, but I didn't keep a list.

Quote
It surely is a rather fine CRO. If no other faults turn up, it might even get used regularly.

It is the one on my bench, not the 2465, not the 2445b, not the digitising scopes. Why? Because a real 50ohm input means you can use it for looking at signal integrity - and that's the USP of a scope in a "digital" circuit.
There are lies, damned lies, statistics - and ADC/DAC specs.
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Offline bd139

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #31658 on: May 20, 2019, 03:16:23 am »
Sooo need some DMM leads.

What's the betting these are dodgy ones?

https://www.ebay.co.uk/itm/153002583405

That's about the right price for the real thing but the leads look a little more translucent than they should be to me, so could be Pliovic instead of real silicone; and if counterfeit, not the real hard-point high-nickel steel the tips are supposed to be. Those non-modular TL71s are only $20-ish list price.

A quick look at the vendor's other stuff shows them selling a lot of China-direct merch, and lots of the kind of "Fluke" goods that get counterfeited.

Not sure about the "Fluke" IR thermometer, and I think the T5-RLS leads haven't been counterfeited yet... it's REALLY hard to say, given the other goods for sale by the vendor. Probably NOT a Fluke "authorized store".

mnem
*Fluke-ily*

Yeah I was starting to think that. If I look elsewhere they are just over twice the cost. Hardly worth arguing over the price difference at that level TBH so will grab some genuine ones from RS. This is actually so I can sell my 87V which I haven't touched since I got the 87. The 87 is a far far better meter if you ask me. Considerably less tetchy, bargraph is actually useful and known good. I've seen a lot of people moaning their 87V has bricked itself after 5 years.



Quick K2 update.

Half way through the RX/synthesizer capacitor stuffing:



After this and semiconductors / crystals...



Crystal filter was fun:



next: toroids. Lots of them  :scared:
 
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Offline Calambres

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #31659 on: May 20, 2019, 03:38:28 am »
Quick K2 update.
IMHO, you should open a dedicated thread...

Offline tggzzz

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #31660 on: May 20, 2019, 04:21:41 am »
Went to the Dunstable hamfest today. Impressions...

There were many tarpaulins on the ground, held down by large rusty bits of electronic stuff at each corner, which is reasonable.But the rest of the tarpaulin was also covered with such hazardous waste.

There were too many people that you didn't want looking stuff on a stand, because they had marked post-nasal drip.

There were too many people that didn't mind whether something worked (or even what something was), so long as it was cheap.
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
 

Offline bd139

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #31661 on: May 20, 2019, 04:57:04 am »
That sounds about right.

I've noticed that all things have died on their steaming dead arses in the hamfest space. Broken, hooky, hazardous as you so elegantly put, overpriced and nothing else. Honestly I've actually just stopping buying crap now.
 

Offline Specmaster

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #31662 on: May 20, 2019, 05:18:12 am »
I invite you two to come shop the stores by me. Plenty of briefs and boxer briefs in 1x, 2x, 3x. Absolutely NONE in my size.  :-// Regular old size M.  ::) I have to order on line.

She's binge watching the British "Midsomer Murder's" after a day of stocking up on provisions and a nice dinner out. I have a question for my British fellow TEA'ers. Are ALL British women skinny ass bleach blonds or is it simply a fetish of that production company?  :-//   
Nice to hear that your lady likes some fine British drama and countryside. As to the British women question, nah, they are generally much larger these days, often outdoing us british men and we're getting much bigger these days with all the takeaways we all consume these days and that includes me, I need 3x to cover my arse.  :-DD
Who let Murphy in?
 

Offline Specmaster

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #31663 on: May 20, 2019, 05:51:29 am »
I invite you two to come shop the stores by me. Plenty of briefs and boxer briefs in 1x, 2x, 3x. Absolutely NONE in my size.  :-// Regular old size M.  ::) I have to order on line.

She's binge watching the British "Midsomer Murder's" after a day of stocking up on provisions and a nice dinner out. I have a question for my British fellow TEA'ers. Are ALL British women skinny ass bleach blonds or is it simply a fetish of that production company?  :-//   

That's typical mediocre television crap here and entirely down to the production company.

Some decent stuff:


I'm with you, Victor  :-DD, One foot in the grave was a brilliant program. K2 is coming on nicely, soon be up and running  :-+ 
Who let Murphy in?
 

Online 0culus

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #31664 on: May 20, 2019, 05:56:59 am »
Had one of those "man, am I dumb" moments. Installed the extra SRAM into my 53310A Modulation Domain Analyzer and totally forgot to install the jumper on SEL1 and move the other two. So of course it doesn't report the extended memory as being installed...  :palm:
« Last Edit: May 20, 2019, 06:08:35 am by 0culus »
 

Offline Specmaster

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #31665 on: May 20, 2019, 06:07:40 am »
Well I finally got around to finishing off the Pioneer A109 stereo amp, after replacing all 4 of the output Mosfets, it still was running away thermally so I decided to pull the Op-amp and replace that as well. When I pulled it out, whatever liquid it was that was poured inside the amp had left a huge great sticky cake beneath the Op-amp, like a Pontefract cake it was. I fitted a 8 pin socket to allow easy removal should it be necessary in the future.

Next step to adjust the idling current and this time it was easy to do, got it down 11.5mV on both channels and now the running temperature is a respectable 45C.

The service manual was a bit hard to follow at times with instructions like these on the attached print, even the polarity shown on the meter connections is actually the reverse, a poor translation into English I think to blame  :palm:
Who let Murphy in?
 

Offline bitseeker

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #31666 on: May 20, 2019, 07:04:15 am »
Received FeelTech FY6600 - I'm not sure if you guys have seen the latest article in QRZ (ARRL publication) about mod'ing this to use as a WSPR transmitter

Yeah, I read that article since I've also followed the FY6600 thread. Pretty neat. Why did you get the 6600 instead of the 6800 (which has user-upgradable firmware)?
I TEA.
 

Offline bitseeker

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #31667 on: May 20, 2019, 07:08:44 am »
When I watched the logos of so many companies being altered to give them a 'modern' appearance, I swore to myself: If I ever found a company, it's statutes would expressly forbid any alteration of the logo.

What became of the beautiful Tek logo? A boring word. What became of the beautiful Telefunken logo? A boring word. Philips? HP at least tried to preserve the original idea.

But maybe I'm just a bit too nostalgic ...

I concur and don't think you're too nostalgic. Ask Rolls Royce, Rolex, or other iconic brands if they're too nostalgic for not modernizing their logos. A well-known, instantly recognizable brand is invaluable. Changing it can have benefits, but also consequences. I can understanding changing it if the current logo doesn't gain much traction, but I would be very reluctant to change a well-known one.
I TEA.
 

Offline GreyWoolfe

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #31668 on: May 20, 2019, 07:10:44 am »
Since you guys brought up underwear...   Despite the fact that the only thing I ever buy from Banggood.com is electronic items, they still send me emails with suggestions for other stuff.  One day one of their emails included "elephant underwear."  Don't go there and search it.  Once you see it you can't unsee it.
https://www.banggood.com/search/elephant-underwear.html

Now I know where the guys who own one of these (H2 Hummer) get their drawers.  :-DD
[/quote]

You have it backwards.  They have no hope in He!! filling a fraction of those underwear.  That is why they drive H2s.  Compensation and no adjustment pot available. :-DD
That which doesn't kill you still requires a co-pay.
 

Offline bitseeker

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #31669 on: May 20, 2019, 07:15:52 am »
When I watched the logos of so many companies being altered to give them a 'modern' appearance, I swore to myself: If I ever found a company, it's statutes would expressly forbid any alteration of the logo.

What became of the beautiful Tek logo? A boring word. What became of the beautiful Telefunken logo? A boring word. Philips? HP at least tried to preserve the original idea.

But maybe I'm just a bit too nostalgic ...

HP the Computer company is sort of keep the original alive with this iteration  :-// Still the same rake angle on the bars.



That may have been the argument that the designer used. That new logo clearly jumped the shark and went for form over function. Unless you know that it's HP's logo, you'd just wonder what the four slashes mean. Alternatively, it could be British Petroleum's new logo (bp). >:D

All that logo says to me is that HP has lost the critical components that gave the company its meaning and identity. All that's left are the whisp(er)s of its former glory.
« Last Edit: May 20, 2019, 07:18:36 am by bitseeker »
I TEA.
 

Offline med6753

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #31670 on: May 20, 2019, 08:56:55 am »
Since you guys brought up underwear...   Despite the fact that the only thing I ever buy from Banggood.com is electronic items, they still send me emails with suggestions for other stuff.  One day one of their emails included "elephant underwear."  Don't go there and search it.  Once you see it you can't unsee it.
https://www.banggood.com/search/elephant-underwear.html

Now I know where the guys who own one of these (H2 Hummer) get their drawers.  :-DD



You have it backwards.  They have no hope in He!! filling a fraction of those underwear.  That is why they drive H2s.  Compensation and no adjustment pot available. :-DD
[/quote]

Absolutely agree.....I was being VERY sarcastic.  >:D :-DD
An old gray beard with an attitude.
 

Offline med6753

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #31671 on: May 20, 2019, 09:04:05 am »
I invite you two to come shop the stores by me. Plenty of briefs and boxer briefs in 1x, 2x, 3x. Absolutely NONE in my size.  :-// Regular old size M.  ::) I have to order on line.

She's binge watching the British "Midsomer Murder's" after a day of stocking up on provisions and a nice dinner out. I have a question for my British fellow TEA'ers. Are ALL British women skinny ass bleach blonds or is it simply a fetish of that production company?  :-//   
Nice to hear that your lady likes some fine British drama and countryside. As to the British women question, nah, they are generally much larger these days, often outdoing us british men and we're getting much bigger these days with all the takeaways we all consume these days and that includes me, I need 3x to cover my arse.  :-DD

She has an affinity for things British especially British history but she is NOT one of those rabid followers of the royals. Just got back from a 5 hour round trip to get her home. The traffic down in metro NYC was the usual PITA. Once outside of NYC smooth sailing. But I'm beat.  :phew:
An old gray beard with an attitude.
 

Online mnementh

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #31672 on: May 20, 2019, 10:06:05 am »
Anniversary present for the wife was the Game of Thrones box set. We're horrible fans; neither of us have watched an episode since the Red Wedding.

Honestly, I'm not sure I can stomach that much sturm und drang. At all. EVER. In whatever life I have left.   :-DD

mnem
Drama: It's what's for dinner.
 

Online mnementh

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #31673 on: May 20, 2019, 10:47:56 am »
Sooo need some DMM leads.   What's the betting these are dodgy ones?

https://www.ebay.co.uk/itm/153002583405

That's about the right price for the real thing but the leads look a little more translucent than they should be to me, so could be Pliovic instead of real silicone; and if counterfeit, not the real hard-point high-nickel steel the tips are supposed to be. Those non-modular TL71s are only $20-ish list price.

A quick look at the vendor's other stuff shows them selling a lot of China-direct merch, and lots of the kind of "Fluke" goods that get counterfeited.

Not sure about the "Fluke" IR thermometer, and I think the T5-RLS leads haven't been counterfeited yet... it's REALLY hard to say, given the other goods for sale by the vendor. Probably NOT a Fluke "authorized store".

mnem
*Fluke-ily*
Yeah I was starting to think that. If I look elsewhere they are just over twice the cost. Hardly worth arguing over the price difference at that level TBH so will grab some genuine ones from RS. This is actually so I can sell my 87V which I haven't touched since I got the 87. The 87 is a far far better meter if you ask me. Considerably less tetchy, bargraph is actually useful and known good. I've seen a lot of people moaning their 87V has bricked itself after 5 years.

Quick K2 update.
Half way through the RX/synthesizer capacitor stuffing:      After this and semiconductors / crystals...      Crystal filter was fun:      next: toroids. Lots of them  :scared:

Yeah, it looks like the FLUKE leads have bumped up a fair bit since I shopped them last; I remember buying the TL71s at $22 from Element14 a year or three ago. Now they're $29.70 on sale from $32.99.

If it's the hard-point probe that you're looking for, no point at all in even looking at the knock-offs. The one thing you won't get is that crazy-hard alloy they use. If the cheapo quality is not an issue, may as well just buy the $2.95 cheapies like I just got to use as "sacrificial elements" on my own bench. When I zorch those, I use the wire to make battery cables for my micro-quads that only need 18-20ga power whips.  :-DD

I know I could find out by looking on the site, but what bands does that monstrosity cover, what modulation types and how many watts out? I know they're popular in the CW ONLY crowd too, right?

mnem
*all poke'd out*
« Last Edit: May 20, 2019, 11:57:14 am by mnementh »
 

Offline Cubdriver

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #31674 on: May 20, 2019, 12:05:01 pm »
Wow - someone just dropped $260 on a Fluke 8300A on the Bay of Evil. 

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


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