Author Topic: Test Equipment Anonymous (TEA) group therapy thread  (Read 1806444 times)

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Offline Specmaster

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #31950 on: May 25, 2019, 08:27:31 am »
I feel so inadequate. All I have is a lowly Heath VTVM.  :-DD
And what is wrong with that? Back in the day that was all most people had and they managed perfectly OK.

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Offline tggzzz

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #31951 on: May 25, 2019, 08:41:33 am »
Clearly you 'need' one of them new fangled Nixie ones then  :-DD eBay auction: #323786990496



That's a close shave: they don't ship to the UK.

I have test equipment with Panaplex, LCD, LED (including dots rather than segments), CRT, dekatron displays - but no nixies.

The completist urge in me is becoming unbearable. So far I can suppress it by not searching for "nixie".
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 beanflying

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #31952 on: May 25, 2019, 08:47:48 am »
Clearly you 'need' one of them new fangled Nixie ones then  :-DD eBay auction: #323786990496



That's a close shave: they don't ship to the UK.

I have test equipment with Panaplex, LCD, LED (including dots rather than segments), CRT, dekatron displays - but no nixies.

The completist urge in me is becoming unbearable. So far I can suppress it by not searching for "nixie".

 >:D eBay auction: #192925024737

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Online med6753

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #31953 on: May 25, 2019, 08:53:23 am »
Clearly you 'need' one of them new fangled Nixie ones then  :-DD eBay auction: #323786990496



That's a close shave: they don't ship to the UK.

I have test equipment with Panaplex, LCD, LED (including dots rather than segments), CRT, dekatron displays - but no nixies.

The completist urge in me is becoming unbearable. So far I can suppress it by not searching for "nixie".

 >:D eBay auction: #192925024737



That's a nice DMM and the price is right but alas....they don't ship to the US.  :-//
An old gray beard with an attitude.
 

Offline tggzzz

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #31954 on: May 25, 2019, 08:57:25 am »
Broke my wonderful Tek P6056 probe trying to adjust compensation |O.

Ouch.

I very much like my (three) HP equivalents, the HP10020A. No adjustments, <0.7pF, better ground "spear" which can be moved.

You have to have patience to find them, though.
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 med6753

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #31955 on: May 25, 2019, 08:58:46 am »
The UPS "weather alert" for my package from Mouser has been lifted and it currently sits in Syracuse, NY which is about 200 miles away. Might as well be in China because of the Memorial Day weekend won't be delivered until Tuesday.  |O
An old gray beard with an attitude.
 

Offline tggzzz

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #31956 on: May 25, 2019, 09:00:04 am »
Clearly you 'need' one of them new fangled Nixie ones then  :-DD eBay auction: #323786990496



That's a close shave: they don't ship to the UK.

I have test equipment with Panaplex, LCD, LED (including dots rather than segments), CRT, dekatron displays - but no nixies.

The completist urge in me is becoming unbearable. So far I can suppress it by not searching for "nixie".

 >:D eBay auction: #192925024737



nA too.

I don't like you. Go away.

Is there any way of blocking individual pushers?
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 med6753

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #31957 on: May 25, 2019, 09:04:56 am »

nA too.

I don't like you. Go away.

Is there any way of blocking individual pushers?

You can put Bean on "ignore".  :-DD But you know you want that DMM. I would certainly go for it if I were over there.

Unless you buy it you're going to have to put all of us on ignore.  >:D :-DD :-DD
An old gray beard with an attitude.
 

Offline tggzzz

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #31958 on: May 25, 2019, 10:02:17 am »

nA too.

I don't like you. Go away.

Is there any way of blocking individual pushers?

You can put Bean on "ignore".  :-DD But you know you want that DMM. I would certainly go for it if I were over there.

Shows how much I know about the forum!

In general I dislike the concept of filtering out dissenting voices, since that means I can miss useful information. In particular I hate automated systems that do it "for me". e.g.
  • ISP spam filters; my MUA's bayesian filter is, by definition, exactly suited to my preferences
  • echo chambers; need I mention farceBook?

Having said that, I do have custom-crafted "ignore subthread" filters on usenet groups, for the persistent trolls and wingnuts.

Quote
Unless you buy it you're going to have to put all of us on ignore.  >:D :-DD :-DD

Yup, that's the killer problem. Hotel California.
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 Ero-Shan

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #31959 on: May 25, 2019, 11:26:11 am »
Yesterday I received my new rectal thermometer. ;)

   Here it is in comparison to my own contraption. I know they're almost indistinguishable, but let me tell you: real experts can tell them apart!  :-DD

I think I got kinda lucky here. Previously, I've only seen HV probes of unknown provenience for prices above 80 €. Now I got a real Fluke for less than half of that, with shipping. I think that actually was a fluke.

Welcome to Probulator Club!

OK, I guess I'll join in. Another Fluke probulator. Actually, I didn't realize how many different probulators I had in the shot.

BTW, mnem, the P2200 probes are there in their packaging, awaiting the bg7tbl noise generator so I can test their spectrum.

Can I join the probulator club?

You're welcome!
 

Offline Ero-Shan

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #31960 on: May 25, 2019, 11:44:07 am »
Clearly you 'need' one of them new fangled Nixie ones then  :-DD eBay auction: #323786990496



That's a close shave: they don't ship to the UK.

I have test equipment with Panaplex, LCD, LED (including dots rather than segments), CRT, dekatron displays - but no nixies.

The completist urge in me is becoming unbearable. So far I can suppress it by not searching for "nixie".

Hu? How did you manage that? I have TE with Panaplex, LCD, LED (alas not real dotted ones, but 2-part segments), VFD, CRT, Nixies - but no dekatrons.
Nixies are easy to find and sometimes even cheap. Dekatrons never turned up in my searches. And it certainly is not because I avoid them ... :(
 

Offline Ero-Shan

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #31961 on: May 25, 2019, 11:54:28 am »

nA too.

I don't like you. Go away.

Is there any way of blocking individual pushers?

You can put Bean on "ignore".  :-DD But you know you want that DMM. I would certainly go for it if I were over there.

Unless you buy it you're going to have to put all of us on ignore.  >:D :-DD :-DD

I don't like all of you. It seems to be in better shape than mine. I'm sure I don't want 2 of them. Yes, of course I'm sure. No one needs 2 DMMs, even less 2 of the same kind.
It also reminds me that I forgot to include its brother frequency counter in my counter gathering picture. |O

Damn it! Why do you do this to me?
 

Online beanflying

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #31962 on: May 25, 2019, 12:18:27 pm »
Just because the Lolly Jar is out on display doesn't mean you need to remove the lid and consume  >:D :-DD
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Offline Brumby

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #31963 on: May 25, 2019, 12:58:39 pm »
Bean .... you are evil.
 

Offline tggzzz

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #31964 on: May 25, 2019, 01:21:09 pm »
Clearly you 'need' one of them new fangled Nixie ones then  :-DD eBay auction: #323786990496



That's a close shave: they don't ship to the UK.

I have test equipment with Panaplex, LCD, LED (including dots rather than segments), CRT, dekatron displays - but no nixies.

The completist urge in me is becoming unbearable. So far I can suppress it by not searching for "nixie".

Hu? How did you manage that? I have TE with Panaplex, LCD, LED (alas not real dotted ones, but 2-part segments), VFD, CRT, Nixies - but no dekatrons.
Nixies are easy to find and sometimes even cheap. Dekatrons never turned up in my searches. And it certainly is not because I avoid them ... :(

Drat: forgot the VFD in my Solartron 7081.

The dekatron counter is this this Griffin Geiger counter. Getting it was mildly interesting. I saw it in an auction within travelling distance, but before I bid the venue was changed to be "too far to bother". A few weeks later it materialised at a hamfest, so I snapped it up.

The dotted display is an HP5302A like



Anybody want my spare Solarton 7075 DVM, with Panaplex goodness, a lead (Fischer connector!), and custom carrying case? That will leave me with only two panaplex DVMs.
« Last Edit: May 25, 2019, 06:45:28 pm by tggzzz »
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 Kosmic

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #31965 on: May 25, 2019, 03:24:24 pm »
For completeness, I did another round of probe testing. This time the idea is to submit the probe to a sharp square pulse and observe the rise time, overshoot and general waveform distortions.

The Setup:
The probes are connected to my Lecroy oscilloscope calibration port via a probe-to-bnc adapter. The Calibration port is outputting a square pulse at 2Mhz, 1V, <= 1ns rise time, 25 ns width. Impedance is 1MOhms.

*Every probes as been compensated before running the test.


Kuman P6100 100Mhz:





JinHao P6100 100Mhz:





NoName Chinese P6500 500Mhz





Cleqee P4100 100Mhz 100x:





Hantek T3100 100Mhz 100x:





Tektronix P6106 250Mhz:





Tektronix P6054a 150Mhz





Tektronix P6056 3.5Ghz 50Ohms




60dbm.com Active Probe 1Ghz 50Ohms
(Attenuation is to be expected here)




Conclusion:
  • I think everybody should avoid cheap P6100 probes . Even real Hantek probes seem to perform better.
  • The cheap active probe is surprisingly a good performer.
  • Tektronix probes are generally really good.

For those interested, Part 1 is here: https://www.eevblog.com/forum/testgear/test-equipment-anonymous-(tea)-group-therapy-thread/msg2416473/#msg2416473
« Last Edit: May 26, 2019, 02:59:03 am by Kosmic »
 
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Offline Mr. Scram

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #31966 on: May 25, 2019, 04:07:58 pm »
My neighbour has spent the past 20 minutes mowing his scrawny 5 square metre "lawn" with barely any grass on it.
 

Offline Mr. Scram

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #31967 on: May 25, 2019, 04:14:48 pm »
Still going. He's been mowing literally the same spot of dirt for 5 minutes now.
 

Online bd139

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #31968 on: May 25, 2019, 04:23:50 pm »
At least it’s not my ex Boss’s neighbour who I saw a video of him mowing AstroTurf.

@Kosmic: excellent work. Thanks for doing this. Suspicions confirmed: tek probes are the best.

 

Offline Mr. Scram

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #31969 on: May 25, 2019, 04:26:11 pm »
Still going. At this point I'm having serious doubts about his mental well-being.
 

Online Kosmic

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #31970 on: May 25, 2019, 04:57:58 pm »
Poor guy he like to mow lawns but he doesn’t have much  ^-^

Not my case, I try to do it only when it's really necessary.
« Last Edit: May 25, 2019, 04:59:43 pm by Kosmic »
 

Offline Specmaster

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #31971 on: May 25, 2019, 05:10:24 pm »
Still going. At this point I'm having serious doubts about his mental well-being.
I think he might know that you're watching him and he's winding you up[emoji12]

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Who let Murphy in?
 

Online med6753

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #31972 on: May 25, 2019, 05:10:35 pm »
It has been a very wet and cool Spring here and the grass is growing like it's on steroids. Land lord has had to mow twice a week or it gets out of control.  :scared:
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Offline Mr. Scram

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #31973 on: May 25, 2019, 05:14:59 pm »
Poor guy he like to mow lawns but he doesn’t have much  ^-^

Not my case, I try to do it only when it's really necessary.
I think he was trying to use the lawn mower to suck some left over debris out of the grass and dirt after moving a huge pile of junk from one side of the yard to the other. He's now been trimming his one square metre flower patch with some electric trimmer for the past hour. He seems to display a rather unusual combination of being anal while also being both completely inefficient and lazy. If he'd just used his hands he'd be done hours ago.
 

Offline bitseeker

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #31974 on: May 25, 2019, 05:44:06 pm »
Share your love of TEA

In the thread about whether or not to divide up the Test Equipment forum, a secondary discussion has been growing about this thread.

Med and tggzzz have been giving feedback to Dave who isn't familiar with our little community. It'd be great if you, the regulars who make TEA what it is, also chime in with what you like about TEA (and how it's more than just chatting about gear).

Here's a quick insertion point on the discussion (but feel free to read back, if you want): https://www.eevblog.com/forum/testgear/time-to-split-up-the-tm-categories/msg2435178/#msg2435178



Fun fact: Did you know that this thread has 10% of total posts in the TE forum? (mind blown)
« Last Edit: May 25, 2019, 05:54:26 pm by bitseeker »
I TEA.
 


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