Author Topic: Test Equipment Anonymous (TEA) group therapy thread  (Read 20963036 times)

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Online tautech

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #133150 on: February 28, 2023, 01:17:16 am »
That's because you are an old nerd, you have everything, collecting for decades  ;)
Old fart please !

Across the channel from you similar old farts would be as well equipped.  ;)
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Online xrunner

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #133151 on: February 28, 2023, 01:24:48 am »
That's because you are an old nerd, you have everything, collecting for decades  ;)

Ask how many american TEA member have as many metric this or that, as they have imperial ?.....

Well I'll answer. I have more imperial than metric, but that doesn't mean I have a small amount of metric. I have quite a lot of metric. Most things are metric now, such as car fasteners, and most if not all consumer products are metric. I have maybe 45% metric and 55% imperial.  :P

I do have a hard time finding good sets of metric drills though.  >:(
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Offline BU508A

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #133152 on: February 28, 2023, 05:54:20 am »
I do have a hard time finding good sets of metric drills though.  >:(

NAWTS

I have bought two sets of metric drills here: Baer GmbH
This shop has also imperial drill sets and other imperial sized tools.

I've bought these two sets, they are going from 1mm to 10mm in 0.1mm steps and the drills are certified for stainless steel, which means high quality.

Set 1


Set 2


Not cheap, but I hate cheap drills which causes more damage than something else.
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Offline AVGresponding

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #133153 on: February 28, 2023, 06:24:22 am »
Still need a slower drill speed for stainless though.
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Offline oz2cpu

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #133154 on: February 28, 2023, 08:52:45 am »
my latest collection item,
fantastic all tube oscilloscope from DDR made in 1963-68, it still works,
impressive build quality and good parts

https://youtu.be/rO1HUXiPVrI

Radioamateur OZ2CPU, Senior EE at Prevas
EMC RF SMPS SI PCB LAYOUT and all that stuff.
youtube : oz2cpu teardown
 
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Offline Mad Axeman

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #133155 on: February 28, 2023, 09:58:09 am »
Hi All

Fairly new member here and I see this is a group therapy thread. I've got a bit of a 'problem' with PAT testers and I'm after your opinion if I need professional help  :D

So far I have the following :-

2 x Kewtech KT77
4 x Seaward Supernovas (basic, plus & elite)
Kewtech KT74
Robin 5000
Robin 5500
Metrel Omegapat
3 x Metrel Sigmapat
Transmille 6080
Metrotest MPAT 60
Metropat 600
Seaward PAT1000
Fluke 6500-2
Megger PAT 4DV/3

And, I don't even like PAT testing (sorry, ISITEE)

Do you think I should seek some sort of counceling?
Also, if any of you have any testers I don't have I'm quite willing to accept them - mainly digital & downloadable ones  ;D

I also seems to be starting a fetish for IR testers. So far only 3 x RS-5500, Alphatek 1601 & 2 x Megger MIT230

Right, I've got that off my chest. Time to trawl ebay for some more  :)
Mad as a sack of cats
 
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Offline Andrew_Debbie

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #133156 on: February 28, 2023, 10:13:41 am »
Sold my non-working  Digimess DM-200(Mastech 9301) DMM on eBay for £33.51 to free up badly needed space.

A few weeks later I put in a £25 bid snipe on a Thurlby 1905A --  To my surprise and horror it is mine.   Ack.   So much for the space I freed up.

I downloaded the manuals.  The thing has promise.  LM3999Z temperature stabilised reference.  Interesting odd-ball features like a hidden 6 1/2 digit mode and programmable math functions.

I'll post again when it arrives and I have a chance to look it over.   It might even work.

« Last Edit: February 28, 2023, 10:36:16 am by Andrew_Debbie »
 
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Offline McBryce

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #133157 on: February 28, 2023, 12:17:36 pm »
Hi All

Fairly new member here and I see this is a group therapy thread. I've got a bit of a 'problem' with PAT testers and I'm after your opinion if I need professional help  :D

So far I have the following :-

2 x Kewtech KT77
4 x Seaward Supernovas (basic, plus & elite)
Kewtech KT74
Robin 5000
Robin 5500
Metrel Omegapat
3 x Metrel Sigmapat
Transmille 6080
Metrotest MPAT 60
Metropat 600
Seaward PAT1000
Fluke 6500-2
Megger PAT 4DV/3

And, I don't even like PAT testing (sorry, ISITEE)

Do you think I should seek some sort of counceling?
Also, if any of you have any testers I don't have I'm quite willing to accept them - mainly digital & downloadable ones  ;D

I also seems to be starting a fetish for IR testers. So far only 3 x RS-5500, Alphatek 1601 & 2 x Megger MIT230

Right, I've got that off my chest. Time to trawl ebay for some more  :)

Please take a seat, the doctor a bunch of equally inflicted TEA patients will be with you shortly to encourage your addiction.

McBryce.
30 Years making cars more difficult to repair.
 
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Offline Brumby

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #133158 on: February 28, 2023, 12:42:29 pm »
Right, I've got that off my chest. Time to trawl ebay for some more  :)

Hi - and welcome!!!


Oh ... you so belong here!   >:D
 
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Offline Robert763

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #133159 on: February 28, 2023, 12:55:03 pm »
No, no imperial calipers, but I have a calculator....

It's clear now my bearings are imperial and it's clear that French website sells imperial converted/rounded to metric.  Here in Metric land we have no particular interest in making a bearing that's 3.17mm thick... so it means it's 1/8" and that's it.... inner diameter is close to 4.8mm so must be 3/16".

I am about to pull the trigger... and the website accepts Paypal as well, 3.....2.....1.......No, waiting for Robert's reply, maybe he has some.... in box #435,  3rd garage, 5th alley, 17th pile, 9th box counting from the floor. In the box, sub-box 12, in a little zip bag marked #32.   Or is it #31....

No, they are in a box on the shelf in the garage. That sounds like a standard size so hang on and I'll look this afternoon. They will be high quality probably ABEC 7.

Robert.
 

Offline Black Phoenix

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #133160 on: February 28, 2023, 01:08:04 pm »
Hi All

Fairly new member here and I see this is a group therapy thread. I've got a bit of a 'problem' with PAT testers and I'm after your opinion if I need professional help  :D

So far I have the following :-

2 x Kewtech KT77
4 x Seaward Supernovas (basic, plus & elite)
Kewtech KT74
Robin 5000
Robin 5500
Metrel Omegapat
3 x Metrel Sigmapat
Transmille 6080
Metrotest MPAT 60
Metropat 600
Seaward PAT1000
Fluke 6500-2
Megger PAT 4DV/3

And, I don't even like PAT testing (sorry, ISITEE)

Do you think I should seek some sort of counceling?
Also, if any of you have any testers I don't have I'm quite willing to accept them - mainly digital & downloadable ones  ;D

I also seems to be starting a fetish for IR testers. So far only 3 x RS-5500, Alphatek 1601 & 2 x Megger MIT230

Right, I've got that off my chest. Time to trawl ebay for some more  :)

Heck that is a big collection... Well, welcome to the family.
 

Offline Specmaster

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #133161 on: February 28, 2023, 05:40:10 pm »
Sold my non-working  Digimess DM-200(Mastech 9301) DMM on eBay for £33.51 to free up badly needed space.

A few weeks later I put in a £25 bid snipe on a Thurlby 1905A --  To my surprise and horror it is mine.   Ack.   So much for the space I freed up.

I downloaded the manuals.  The thing has promise.  LM3999Z temperature stabilised reference.  Interesting odd-ball features like a hidden 6 1/2 digit mode and programmable math functions.

I'll post again when it arrives and I have a chance to look it over.   It might even work.


They are nice meters, I have one and it is spot on spec as well. Be aware however that it is a manual switcher.
Who let Murphy in?

Brymen-Fluke-HP-Thurlby-Thander-Tek-Extech-Black Star-GW-Avo-Kyoritsu-Amprobe-ITT-Robin-TTi
 
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Offline Vince

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #133162 on: February 28, 2023, 06:05:18 pm »
Sold my non-working  Digimess DM-200(Mastech 9301) DMM on eBay for £33.51 to free up badly needed space.

A few weeks later I put in a £25 bid snipe on a Thurlby 1905A --  To my surprise and horror it is mine.   Ack.   So much for the space I freed up.

I downloaded the manuals.  The thing has promise.  LM3999Z temperature stabilised reference.  Interesting odd-ball features like a hidden 6 1/2 digit mode and programmable math functions.

I'll post again when it arrives and I have a chance to look it over.   It might even work.


Oh, Andrew is back...   8)

Looks like your new purchase is quite an upgrade compared to the old Chinesium it replaces, so no regrets...

 
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Offline Robert763

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #133163 on: February 28, 2023, 06:06:40 pm »
Sold my non-working  Digimess DM-200(Mastech 9301) DMM on eBay for £33.51 to free up badly needed space.

A few weeks later I put in a £25 bid snipe on a Thurlby 1905A --  To my surprise and horror it is mine.   Ack.   So much for the space I freed up.

I downloaded the manuals.  The thing has promise.  LM3999Z temperature stabilised reference.  Interesting odd-ball features like a hidden 6 1/2 digit mode and programmable math functions.

I'll post again when it arrives and I have a chance to look it over.   It might even work.

The 1905a is  very good meter. Much better than a Solartron 7150 of similar specification. The only problem I've seen is failure of the membrane keyboard but it seems rare on the later models.
Funnily enough I have a Racal-Dana 4009, which is a re-badged 1905a, on soak test at the moment. It's connected to a Time Voltage calibrator and a Keithley 199 as cross check and it been rock solid on 5.0000 for two days.  :-DMM

Robert.
 
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Offline Vince

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #133164 on: February 28, 2023, 06:08:49 pm »
No, no imperial calipers, but I have a calculator....

It's clear now my bearings are imperial and it's clear that French website sells imperial converted/rounded to metric.  Here in Metric land we have no particular interest in making a bearing that's 3.17mm thick... so it means it's 1/8" and that's it.... inner diameter is close to 4.8mm so must be 3/16".

I am about to pull the trigger... and the website accepts Paypal as well, 3.....2.....1.......No, waiting for Robert's reply, maybe he has some.... in box #435,  3rd garage, 5th alley, 17th pile, 9th box counting from the floor. In the box, sub-box 12, in a little zip bag marked #32.   Or is it #31....

No, they are in a box on the shelf in the garage. That sounds like a standard size so hang on and I'll look this afternoon. They will be high quality probably ABEC 7.

Robert.

I have been wondering about the quality aspect as well.... I mean the bearing I found on thier website is tagged "generic"... I have no idea what the specs are. I mean as far as mechanical loads are concerned, should be fine but... I am thinking about the angular speed. Can it sustain thousands of hours at thousands of RPM, or is more like "it's OK to use in the runners of your kitchen drawers " ?! Which is not exactly the same requirements....

So have you found your bearing box ?!  >:D
 

Offline Neomys Sapiens

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #133165 on: February 28, 2023, 07:01:30 pm »
No, I am France, there is no reason I would have imperial drill bits. Hell I would kill to know where to buy good quality METRIC ones... the ones I got at H/W store are trash... supposedly a good French Brand, Tivoly... my ass. All they can drill into is butter, barely.
https://webshop.guhring-france.com
 
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Offline timeandfrequency

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #133166 on: February 28, 2023, 07:24:28 pm »
No, I am France, there is no reason I would have imperial drill bits. Hell I would kill to know where to buy good quality METRIC ones... the ones I got at H/W store are trash... supposedly a good French Brand, Tivoly... my ass. All they can drill into is butter, barely.
https://webshop.guhring-france.com
Hi Vince,

As always, such brands sell quality tools and also crap. And the latter is mainly available in mainstream hardware stores.
To procure serious drill bits, prefer professional hardware stores :
https://www.groupe-champion.com/fr/
https://www.dompro.fr/
https://www.laplateforme.com/
https://www.cedeo.fr/

For serious drill press and CNC mill use only, those TiAlN coated tungsten carbide drill bits won't disappoint you. Abundantly use tooling machine lubricant during machining.

For iron and mild to mid steel, the PHOENIX series or the 8% Cobalt LAZER series should do the job.
For stainless steel, the CUTINOX series is your tool.
Should you need to drill into hardened(*) or forged allied steel, ceramics, glass or even mill out a broken tap, Titanium-carbide drill bits are lifesavers. Avoid using them for iron or aluminium.


Having easy access to LN2 permits you to harden your drill bits at home.
https://www.youtube.com/watch?     v=hAxi5YXTjEk       (edit URL to remove space characters)


As @Neomys Sapiens suggested, Guhring is really top-notch stuff.
You may also check out this manufacturer which is located in the German 'Steel Valley' (Ruhr).



(*) true induction, oil or LN2 hardened allied steel up to 75 HRC, the one that instaneously flattens the cutting lips of a 5% Cobalt quality drill bit, suited for stainless steel.

« Last Edit: February 28, 2023, 07:56:45 pm by timeandfrequency »
 
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Offline Vince

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #133167 on: February 28, 2023, 09:23:06 pm »
Wow, thanks everyone for your suggestions on drill bits !  :-+

I will write it all down for future reference... looks like this problem is solved now.  8)

 

Online vk6zgo

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #133168 on: March 01, 2023, 12:17:26 am »
my latest collection item,
fantastic all tube oscilloscope from DDR made in 1963-68, it still works,
impressive build quality and good parts

https://youtu.be/rO1HUXiPVrI

Nice little oscilloscope.
The first one I used at work was similar, but had a much bigger tube, & hence, display size.

Interestingly, the old style timebase designs like that hung in for quite a long time elsewhere than the DDR, selling against such things as the "Telequipment Serviscope" which had a proper trigger circuit.

As soon as I found a Serviscope (with its 5MHz bandwidth) at work, I lost interest in the old AWA & EMI ones we had.

About the coax "banana" plugs, such connectors were also common in the FDR.
The TV test & other equipment we bought from there had both the one shown, & the more sophisticated one which had the shroud extending down to level with the tip of the centre pin.

We called them "Fernseh" plugs, as that was what was slathered across the front panel of the equipment, despite the story spouted by "revisionists" from Bosch that it "just means Television". (But that is another argument).



 

Offline AVGresponding

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #133169 on: March 01, 2023, 06:32:24 am »
Sold my non-working  Digimess DM-200(Mastech 9301) DMM on eBay for £33.51 to free up badly needed space.

A few weeks later I put in a £25 bid snipe on a Thurlby 1905A --  To my surprise and horror it is mine.   Ack.   So much for the space I freed up.

I downloaded the manuals.  The thing has promise.  LM3999Z temperature stabilised reference.  Interesting odd-ball features like a hidden 6 1/2 digit mode and programmable math functions.

I'll post again when it arrives and I have a chance to look it over.   It might even work.

The 1905a is  very good meter. Much better than a Solartron 7150 of similar specification. The only problem I've seen is failure of the membrane keyboard but it seems rare on the later models.
Funnily enough I have a Racal-Dana 4009, which is a re-badged 1905a, on soak test at the moment. It's connected to a Time Voltage calibrator and a Keithley 199 as cross check and it been rock solid on 5.0000 for two days.  :-DMM

Robert.

It's quite easy to misalign the header that connects the front panel to the main board, which disables the buttons, iirc, although apparently I forgot to take any pics of mine when I took it apart... sorry...


Just bought this very cheap, to use the case for a project. Bonus heatsinks and other goodies to boot:

nuqDaq yuch Dapol?
Addiction count: Agilent-AVO-BlackStar-Brymen-Chauvin Arnoux-Fluke-GenRad-Hameg-HP-Keithley-IsoTech-Mastech-Megger-Metrix-Micronta-Racal-RFL-Siglent-Solartron-Tektronix-Thurlby-Time Electronics-TTi-UniT
 
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Offline TERRA Operative

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #133170 on: March 01, 2023, 12:11:12 pm »
Well I had no problems with the 0603 resistors, got a couple of the latch and display decoder adaptor boards completed, waiting for some ICs for the others, then I'll get the flux cleaned up too.


I had time to test two of the boards in the HP 5327B, the latch replacement works fine in both storage & none storage modes, I've not checked printer output yet, this is the inverted outputs, which I've since found out an extra gated function was available in the original IC, this will be added with rev B. I've yet to find anything that uses this function, but will add it anyway, in case I do in the future.

The display decoder driver replacement also works fine, zero blanking works as it's supposed too, just need to try it in another position, that has the zero blanking switched.

Need to make something to check the vertical boards, as the square pins won't go into the sockets, without damage. The horizontal boards are a tight fit in the 5326/7 (I removed the display shield for the test), they are intended for use in the 5216 & 5221/5321, which have limited vertical clearance, but more space in between ICs.


David

For the headers/legs/etc, how about something like these from your locally available supplier?

https://akizukidenshi.com/catalog/g/gC-07064/

https://www.sengoku.co.jp/mod/sgk_cart/detail.php?code=EEHD-4NTG#
Where does all this test equipment keep coming from?!?

https://www.youtube.com/NearFarMedia/
 
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Offline Ero-Shan

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #133171 on: March 01, 2023, 12:13:51 pm »
With lots of effort I was able to get my Workbench in a very rare state of reduced entropy:

1727723-0

which, of course, lasted just as long as it takes to make a photograph to document it. Sure enough, that thing jumped right to the front of my repair queue and subsequently up onto my bench.
It is not classified as TE, but the service instructions tell me to use a VTVM for certain measurements. Does that count as relevant?

[ Specified attachment is not available ]

And it is very close to my age. :palm:

Sorry for the low image quality. Didn't notice it on the small camera screen, and after transferring it to the computer, it was already too late.
 
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Online PA0PBZ

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #133172 on: March 01, 2023, 02:03:02 pm »
Oh my, I remember the smell of these radio's with the hot dusty tubes!  ^-^
Keyboard error: Press F1 to continue.
 

Offline Robert763

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #133173 on: March 01, 2023, 03:47:58 pm »
@Vince
You are in luck. A matched pair, no less, of 3/8"x3/16"x1/8" precision bearings.
Vintage, 1977 and still double sealed. I had to open the outer packet to check thm.

Robert.
« Last Edit: March 01, 2023, 03:50:05 pm by Robert763 »
 
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Offline Andrew_Debbie

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #133174 on: March 01, 2023, 05:18:05 pm »


Just bought this very cheap, to use the case for a project. Bonus heatsinks and other goodies to boot:



Laser Enable?  With a key switch!   You need to practice saying "Good evening Mr. Bond" while tenting your hands.
 


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