Author Topic: Test Equipment Anonymous (TEA) group therapy thread  (Read 1817867 times)

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Online med6753

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #12950 on: July 08, 2018, 08:18:40 pm »
Change of plans here. I know I said yesterday that I was going to work on the 465 again. Decided to put it back into the cart until later this week. My objective for this week off from work was to get the PSU in that newer 2465 re-capped. So I'm concentrating on that and started today.

Can't be bothered to check if you know, but don't forget the errors around C1132/C1115. Trust what you see in the holes, not any of the documentation.

I am well aware of that error in the service manual.
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Offline Specmaster

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #12951 on: July 08, 2018, 08:23:27 pm »


Oooooh... that's yummy. A part of me wants the whole stack, just to bathe in the warm LED glow...  :palm:

Of course, while I was looking at that... guess what eBay had to "suggest". https://www.ebay.co.uk/itm/192592446246   :scared:


mnem
Clearing out... clearing out... ARGGGHHH!!! |O
Just to effing big, they really are boat anchors.
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Online med6753

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #12952 on: July 08, 2018, 11:48:11 pm »
As mentioned I started the PSU re-cap of the 2465. I'm also posting in the 2465B Teardown thread a complete road map from start to finish on how to successfully complete it. I have part 1 posted. Currently writing part 2 and will be posted later. Feel free to add comments/suggestions either here or in that thread.
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Offline mnementh

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #12953 on: July 09, 2018, 02:15:47 am »
Awresome!

I did this job on my daily driver 2465 about 10 years ago... It'll be good to revisit and maybe learn somethin'. I too did mine one cap at a time, even though I DO have the full original printed service manual. That weighty tome is some piece of work, particularly their service and troubleshooting flowcharts; a high-intensity course in high-precision analog electronics in its own right.

I might even order the parts and tackle the SMPS from the NASA 2465; although I do have tons of more pressing matters, it really does bother me having it sitting forlornly in the dark of the back of my closet... even if it is in there with several of its brothers.  :-DD

mnem
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Offline TiN

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #12954 on: July 09, 2018, 04:41:39 am »
Do. Not. Become. A. Voltnut.  :-DD

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Offline mnementh

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #12955 on: July 09, 2018, 04:51:19 am »
*Hastily scribbles down a few auction numbers of Fluke 87s to plug into gixen tomorrow morning*


mnem
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Offline Berni

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #12956 on: July 09, 2018, 05:08:50 am »
Now that is some serious voltnutery going on there. :o

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Offline bitseeker

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #12957 on: July 09, 2018, 05:35:51 am »
Great job with the progress on that 465, med.

OK, so with all the recent Tek talk, for long term use and maintenance, which is the better option, a 465 or a 475 (or no difference in this series)? Of course, more bandwidth is nice with the 475, but at some point the number of unobtanium parts makes old scopes less desirable. I'm just not sure at what point that occurs with the good ol' Teks.
Maybe it's time to start looking at Philips then as they use more standard parts and thus should be able to be kept running correctly with ease?

Yeah, that was actually going to be my next question. Ha!
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Offline bitseeker

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Re: HP 58503A 58535A 58529A
« Reply #12958 on: July 09, 2018, 05:40:13 am »
Enough said, let photos tell the story of latest TEA scores.  :palm:

HP 58503A, a dent at the front panel, but not affecting anything inside, tested & working fine, bought from one of the member here.

Since the HP 58503A will be the 2nd GPSDO, an antenna distributor as I only have one GPS antenna, an used Symmetricom 58535A, and it came with a free complementary LNA & GPS L1 bandpass filter Symmetricom 58529A.  :P

Ah, I saw one of those HP GPSDO on eBay last month or thereabouts. Of course, I didn't win it or y'all would've seen it here. What do you like about the 58503 vs. other GPSDO?
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Offline bitseeker

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #12959 on: July 09, 2018, 05:41:46 am »
I'm think I'm suffering from logic probe related TEA syndrome, after building a logic probe kit recently, I saw a GW Instek probe and had to have it!  :-DD



Well, if you have TEA, I suppose there's a propensity to having logic issues.  :-DD
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Offline bitseeker

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #12960 on: July 09, 2018, 05:46:22 am »
Check this out. When I grow up I want to have the same toys. The owner is the admin for a Vintage Tek Facebook group.

If I had that bench I would never leave home and become that weird old hermit gray beard that no one ever sees. Oh hell, I'm that already!   :palm: :-DD




Amazing collection, med. But if you had all those, you'd probably have to refrain from powering them all up at once lest the neighbors glare at you for the brownouts.

Adding to the POI list.
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Offline bitseeker

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #12961 on: July 09, 2018, 05:50:00 am »
Yep. Got a fan blowing up my arse.

That scammer is back again over and over again. I’ve managed to write a filter that catches that scammer at work. Going to turn it on later I think as it doesn’t appear to result in any false positives. It looks for new sellers it hasn’t seen before and lists all the item titles and if there are at least 5 that match a sample I took by hand it adds the seller to the shitlist. I’ve written half my own eBay API in python now.

So, is this destined to become a new online service? TEAbay, the best way to TEA on eBay.
I TEA.
 

Offline bitseeker

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #12962 on: July 09, 2018, 05:57:19 am »
Do. Not. Become. A. Voltnut.  :-DD



Do. Not. Tempt. Us. :-DD

Very nice setup you have on display here. What's the occasion, TiN?
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Offline tggzzz

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #12963 on: July 09, 2018, 06:08:19 am »
As mentioned I started the PSU re-cap of the 2465. I'm also posting in the 2465B Teardown thread a complete road map from start to finish on how to successfully complete it. I have part 1 posted. Currently writing part 2 and will be posted later. Feel free to add comments/suggestions either here or in that thread.

Curious. C1018 is a RIFA, but C1016 isn't.

In my first 2465 both were RIFAs and C1016 detonated. In my second, neither were RIFAs.

Has someone "been in there" already?
There are lies, damned lies, statistics - and ADC/DAC specs.
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Offline DC1MC

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #12964 on: July 09, 2018, 06:17:45 am »
Okay... a question for the group.

Best bang/buck and accuracy out of the box for a 5.5 digit daily driver meter. At least 6000 count with 10A AC/DC current, (20A preferred, even if only short duration like most Fluke industrial models), impedance beep continuity, and junction test minimum requirements. Would prefer wide format portable. Segmented LCD or matrix display, as long as it has BL. Capacitance preferred.

Essentially what I'd like is a Fluke 87-III ^, with one more digit.

New or used, sub $200, ~$100 preferred.

mnem
*Back out into the suck*

I'm very happy with HP-770D (40.000 counts)
https://www.amazon.de/HoldPeak-Digital-Multimeter-HP-770D-Autorange/dp/B01LW2XE0A

or the smaller brother: HP-770HC (6.000 counts) that have the connector for a separate 600A current plier.
https://www.amazon.de/HoldPeak-HP-770HC-Multimeter-Fehlbedienungssperre-Stromzangenanschluss/dp/B00ZFXAJ3K

Both fit all your requirements and more.

 Cheers,
 DC1MC


 

Online med6753

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #12965 on: July 09, 2018, 06:33:38 am »
As mentioned I started the PSU re-cap of the 2465. I'm also posting in the 2465B Teardown thread a complete road map from start to finish on how to successfully complete it. I have part 1 posted. Currently writing part 2 and will be posted later. Feel free to add comments/suggestions either here or in that thread.

Curious. C1018 is a RIFA, but C1016 isn't.

In my first 2465 both were RIFAs and C1016 detonated. In my second, neither were RIFAs.

Has someone "been in there" already?

I noticed that too and as far as I can tell no one has ever been in there.
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Offline BravoV

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Re: HP 58503A 58535A 58529A
« Reply #12966 on: July 09, 2018, 06:35:16 am »
Enough said, let photos tell the story of latest TEA scores.  :palm:

HP 58503A, a dent at the front panel, but not affecting anything inside, tested & working fine, bought from one of the member here.

Since the HP 58503A will be the 2nd GPSDO, an antenna distributor as I only have one GPS antenna, an used Symmetricom 58535A, and it came with a free complementary LNA & GPS L1 bandpass filter Symmetricom 58529A.  :P

Ah, I saw one of those HP GPSDO on eBay last month or thereabouts. Of course, I didn't win it or y'all would've seen it here. What do you like about the 58503 vs. other GPSDO?

Oh, this HP 58503A was not from eBay, bought it local here, from one of member here too.

Have not thoroughly test it yet, but from seller had powered & tested it for > 24h with Lady Heather and everything worked fine. What I like on 1st impression is it has fully cased rather than my other GPSDO board that was unplugged from unknown source, and of course this thing is like de-facto standard too, cmiiw. Also it has well known HP OCXO, not sure about it's life though. It has crushed/dented front panel that I'm going to fix, and also going to replace it's internal switcher PSU as its toasted and lame, I will to launch a new repair thread for it soon.

Bummer, which eBay item you didn't win ? Are you also looking for GPSDO too ?

Offline Specmaster

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #12967 on: July 09, 2018, 06:54:53 am »
Now that is some serious voltnutery going on there. :o

No trademark q-tips in banana jacks this time?
Gold plated Q-tips for best connectivity of course [emoji38]
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Offline Specmaster

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #12968 on: July 09, 2018, 06:57:59 am »
I'm think I'm suffering from logic probe related TEA syndrome, after building a logic probe kit recently, I saw a GW Instek probe and had to have it!  :-DD



Well, if you have TEA, I suppose there's a propensity to having logic issues.  :-DD
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Offline djos

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #12969 on: July 09, 2018, 07:14:08 am »
I'm think I'm suffering from logic probe related TEA syndrome, after building a logic probe kit recently, I saw a GW Instek probe and had to have it!  :-DD



Well, if you have TEA, I suppose there's a propensity to having logic issues.  :-DD

Indeed!  :scared:
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Offline jluu

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #12970 on: July 09, 2018, 07:41:03 am »
Yes, theses Fluke are nice, got one of them cheap recently, it was still calibrated.
 

Online med6753

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #12971 on: July 09, 2018, 08:29:58 am »
Check this out. When I grow up I want to have the same toys. The owner is the admin for a Vintage Tek Facebook group.

If I had that bench I would never leave home and become that weird old hermit gray beard that no one ever sees. Oh hell, I'm that already!   :palm: :-DD




Amazing collection, med. But if you had all those, you'd probably have to refrain from powering them all up at once lest the neighbors glare at you for the brownouts.

Adding to the POI list.

F..k the neighbors!  >:D :-DD
An old gray beard with an attitude.
 

Online bd139

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #12972 on: July 09, 2018, 08:37:37 am »
F**k the electricity bill as well  :-DD

Was looking at a Tek 547 the other day. Then I found it pulled 500W out of the wall. Hot enough in here already!
 

Online med6753

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #12973 on: July 09, 2018, 09:30:42 am »
F**k the electricity bill as well  :-DD

Was looking at a Tek 547 the other day. Then I found it pulled 500W out of the wall. Hot enough in here already!

But excellent for Winter heat.  :-+
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Offline djos

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #12974 on: July 09, 2018, 09:51:58 am »
F**k the electricity bill as well  :-DD

Was looking at a Tek 547 the other day. Then I found it pulled 500W out of the wall. Hot enough in here already!


They certainly don't make them like they used eh!  :palm:
The impossible often has a kind of integrity which the merely improbable lacks.

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