Author Topic: Test Equipment Anonymous (TEA) group therapy thread  (Read 3134322 times)

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #59825 on: May 30, 2020, 12:17:36 pm »
@BU508A, please accept my condolences.
Who let Murphy in?

Brymen-Fluke-Solartron-HP-Thurlby-Heathkit-Thander-Tek-Extech-Black Star-GW-Advance-Avo-Kyoritsu-Amprobe-Robin-TTi
 
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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #59826 on: May 30, 2020, 12:41:00 pm »
Today I did the hot air gun repair to the 4503 meter and I'm very pleased to report that it worked a treat, suspect joints that under a microscope appeared to be flawed on the component side of the board (2 layer board) where perfect on the solder side and after treating the top of those joints with rosin and gently warming with the hot air gun, the joints flowed nicely. However, there were 2 slight casualties, 2 polyester caps 22nF each used as HF filters had their outer cases slightly blistered, but still work OK. I'll get these replaced soon with new ones arrive.

The residual 9Meg that resistance ranges were seeing has now completely been cured and the meter calibrated and is in complete agreement my other meters, "winner winner chicken dinner" as Dave would say. The photos below show it in resistance range with open leads and also measuring 4 x 10M resistors soldered together quickly to test the meters capability. 
« Last Edit: May 30, 2020, 12:45:03 pm by Specmaster »
Who let Murphy in?

Brymen-Fluke-Solartron-HP-Thurlby-Heathkit-Thander-Tek-Extech-Black Star-GW-Advance-Avo-Kyoritsu-Amprobe-Robin-TTi
 
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Online tonyalbus

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #59827 on: May 30, 2020, 12:55:14 pm »
On its way, next week ;-))

PM2522 Broken, according to seller did switch-on gave funny readings and then switched off and stayed off.
i paid 20,- hoping it is the power supply

PM2527 Fully working... bit more then double the prize of PM2522..

i say pretty nice deal ... now we wait ;))
[attachimg=1]
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Marconi 2955/2432A/2414A - TTi TF930/TF600/TG102 - HP5302/5315/5323/5385/3478 - Fluke 8000/8010/8125 - SDS1202X-E -XDM2041 - TEK 475 - Anritsu MS610/MF1603 - Keitley 199 - PM2521/2522/2527
https://www.youtube.com/channel/UCwLPcv2xiA3D9lfGArF58ww
 
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Online med6753

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #59828 on: May 30, 2020, 01:01:10 pm »
My first law is simply: time is the only currency worth considering.

Probably you are a more wiser man than me.

A good friend of mine died this week at the consequences of a cerebral haemorrhage.
He was an EEVBlog forum member here as well and was around 40 years old.

Only HE knows, how much time you have left. (Except Rincewind)



I am so sorry to hear this. I know how you feel. About 8 years ago I lost a good friend of many, many years to brain cancer. Funny thing is the guy was an absolute wizard with numbers. Tell him once a date or phone number and he would never forget it.
An old gray beard with an attitude.
 
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Offline Kosmic

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #59829 on: May 30, 2020, 01:05:17 pm »
A good friend of mine died this week at the consequences of a cerebral haemorrhage.

My condolences BU508A  :(
 
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Offline Kosmic

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #59830 on: May 30, 2020, 01:11:46 pm »
Today I did the hot air gun repair to the 4503 meter and I'm very pleased to report that it worked a treat, suspect joints that under a microscope appeared to be flawed on the component side of the board (2 layer board) where perfect on the solder side and after treating the top of those joints with rosin and gently warming with the hot air gun, the joints flowed nicely. However, there were 2 slight casualties, 2 polyester caps 22nF each used as HF filters had their outer cases slightly blistered, but still work OK. I'll get these replaced soon with new ones arrive.

The residual 9Meg that resistance ranges were seeing has now completely been cured and the meter calibrated and is in complete agreement my other meters, "winner winner chicken dinner" as Dave would say. The photos below show it in resistance range with open leads and also measuring 4 x 10M resistors soldered together quickly to test the meters capability.

You can use Kapton tape to shield surrounding components.
 

Offline Mr. Scram

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #59831 on: May 30, 2020, 01:22:44 pm »
Apply with my third law and that problem is solved: "Always have an exit plan"
I haven't figured out how that works for having children, other than going for a pack of fags.
 

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #59832 on: May 30, 2020, 01:23:52 pm »
Incoming, hopefully arriving soon is another AVO model 8, Mk5, complete with all leads, manual and also a clamp on amp probe, a bit grubby but it will clean up nicely. Seller is a retired electrical engineer having a clear out to save his son from having it to do when the time comes, in other words a pre SK sale. This will bring my tally of Avo model 8's upto 3. It wont get used all that much, but at the price it would be rude not to and I'm sure that one day these fine lovable meters will escalate in value. :-+

The attached photo is not actual meter, but it is however the same.
Who let Murphy in?

Brymen-Fluke-Solartron-HP-Thurlby-Heathkit-Thander-Tek-Extech-Black Star-GW-Advance-Avo-Kyoritsu-Amprobe-Robin-TTi
 
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Offline Brumby

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #59833 on: May 30, 2020, 01:26:11 pm »
A good friend of mine died this week at the consequences of a cerebral haemorrhage.

My condolences also.
 
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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #59834 on: May 30, 2020, 01:28:21 pm »
Today I did the hot air gun repair to the 4503 meter and I'm very pleased to report that it worked a treat, suspect joints that under a microscope appeared to be flawed on the component side of the board (2 layer board) where perfect on the solder side and after treating the top of those joints with rosin and gently warming with the hot air gun, the joints flowed nicely. However, there were 2 slight casualties, 2 polyester caps 22nF each used as HF filters had their outer cases slightly blistered, but still work OK. I'll get these replaced soon with new ones arrive.

The residual 9Meg that resistance ranges were seeing has now completely been cured and the meter calibrated and is in complete agreement my other meters, "winner winner chicken dinner" as Dave would say. The photos below show it in resistance range with open leads and also measuring 4 x 10M resistors soldered together quickly to test the meters capability.

You can use Kapton tape to shield surrounding components.
Yes I could, I have some but the caps were some of the suspected bad joints that I needed to reflow from the top side and no way of getting on iron tip in there without actually touching them and other items.
Who let Murphy in?

Brymen-Fluke-Solartron-HP-Thurlby-Heathkit-Thander-Tek-Extech-Black Star-GW-Advance-Avo-Kyoritsu-Amprobe-Robin-TTi
 

Offline mansaxel

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #59835 on: May 30, 2020, 01:32:45 pm »
Incoming, hopefully arriving soon is another AVO model 8, Mk5, complete with all leads, manual and also a clamp on amp probe, a bit grubby but it will clean up nicely. Seller is a retired electrical engineer having a clear out to save his son from having it to do when the time comes, in other words a pre SK sale. This will bring my tally of Avo model 8's upto 3. It wont get used all that much, but at the price it would be rude not to and I'm sure that one day these fine lovable meters will escalate in value. :-+

The attached photo is not actual meter, but it is however the same.

Yeah, one has to have an Avo.

I'm going for sortakinda per-country coverage, at least when it comes to electromechanical meters. One German, (H&B Elavi 3) one UK, Avo 8 MOD style (AVO Test Set Multirange No. 1 (High Sensitivity) ), and looking for a Simpson 260 and some Metrix to get USA and  France into it too. I know where a unloved 260 just stands waiting; next to an Oltronix, a 465 and an Avo 7, so am biding my time.

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #59836 on: May 30, 2020, 01:39:22 pm »
A good friend of mine died this week at the consequences of a cerebral haemorrhage.

My condolences BU508A
Electronics enthusiast, TEA and Radio Amateur (PE1ONS)
Marconi 2955/2432A/2414A - TTi TF930/TF600/TG102 - HP5302/5315/5323/5385/3478 - Fluke 8000/8010/8125 - SDS1202X-E -XDM2041 - TEK 475 - Anritsu MS610/MF1603 - Keitley 199 - PM2521/2522/2527
https://www.youtube.com/channel/UCwLPcv2xiA3D9lfGArF58ww
 
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Online med6753

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #59837 on: May 30, 2020, 01:51:06 pm »
Yes, it's Saturday. I'll be on Discord at approx 2130 UTC.
An old gray beard with an attitude.
 

Offline Ero-Shan

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #59838 on: May 30, 2020, 01:56:28 pm »
Taking stock of my newest acquisition, I couldn't resist ...

A picture for all you Tant lovers out there - fifteen hundred shorts waiting to happen!



To be fair, if they're not abused they are probably rather good.

And for those thinking that those drawers contained nothing but crap, one held these gems inside:



I even have an idea where to store the remaining 6 cabinets. ;D
 
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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #59839 on: May 30, 2020, 02:02:48 pm »
The Fluke 8125A .. looks pretty nice for age...
not sure but from the 70's like me... omg that 50 years??



Yes i did open it.. :))
Electronics enthusiast, TEA and Radio Amateur (PE1ONS)
Marconi 2955/2432A/2414A - TTi TF930/TF600/TG102 - HP5302/5315/5323/5385/3478 - Fluke 8000/8010/8125 - SDS1202X-E -XDM2041 - TEK 475 - Anritsu MS610/MF1603 - Keitley 199 - PM2521/2522/2527
https://www.youtube.com/channel/UCwLPcv2xiA3D9lfGArF58ww
 
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Offline Mr. Scram

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #59840 on: May 30, 2020, 02:04:03 pm »
My first law is simply: time is the only currency worth considering.
I've found that having some other currencies massively helps with having a say over the ultimate currency, although you can easily get lost gathering those other currencies.
 
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Offline Mr. Scram

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #59841 on: May 30, 2020, 02:24:13 pm »
For those interested, SpaceX and NASA are attempting their first crewed launch once more tonight at 19:22 GMT. That's 15:22 furlongbushels customary time.

https://www.nasa.gov/nasalive
 
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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #59842 on: May 30, 2020, 02:26:09 pm »
My first law is simply: time is the only currency worth considering.
I've found that having some other currencies massively helps with having a say over the ultimate currency, although you can easily get lost gathering those other currencies.

I've always remembered and applied a concept from James Clavell's "Noble House". A character in that novel, a lady executive has the objective to have “drop dead money”. The “drop dead money” is that amount of money that she calculates she needs so that she would have the freedom and the luxury to tell anyone to “drop dead” without worrying about her financial security.
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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Online med6753

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #59843 on: May 30, 2020, 02:42:02 pm »
OK smart guys, how do you test those 2 HV diodes on the secondary side of the HV transformer? Apparently the diode test on the Fluke 87 doesn't provide enough voltage to forward bias them. Both read open regardless of polarity.

An old gray beard with an attitude.
 

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #59844 on: May 30, 2020, 02:43:56 pm »
Bench power supply / supplies and a Suitable current limiting resistor. They can have 20v drop across them easily.

Measure V across diode to get voltage drop and measure V across R to get whether or not the diode is fucked.
 
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Offline mnementh

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #59845 on: May 30, 2020, 02:44:03 pm »

[...] Currently installing W7 Ultimate and downloading about 1.8 GB patches. [...]


Microsoft does a couple of "Convenience Rollups" that take you to about 2016,  which can be applied offline in one go like a service pack.  Then the rest of the updates are not so bad.

Good lord, you guys haven't just always been using something like WSUS offline updates so you only just download things once for all your "windoze" <shudder> machines?!

You're nuts!  :)

Quote from: WSUSOffline.net
Modifications in version 12.0

- Support removed for Windows 7 and Server 2008(R2) since Microsoft discontinued support for it on January 14th, 2020
- Support removed for Microsoft Security Essentials, Windows 7 Defender, Service Packs, Remote Desktop Client and Silverlight (download switches /includemsse and /excludesp, update switches /instmsse, /instmssl and /updatetsc)
- Support removed for Windows 10 version 1703 since Microsoft discontinued support for it on October 8th, 2019

mnem
 

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #59846 on: May 30, 2020, 02:44:51 pm »
Hence windows 10 is the new roll up. Path of least resistance. QED. Yadda yadda etc  :-DD
 
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Offline mansaxel

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #59847 on: May 30, 2020, 02:45:01 pm »
@BU508A, I'm sorry for your loss.

Offline Cerebus

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #59848 on: May 30, 2020, 02:51:33 pm »
And for those thinking that those drawers contained nothing but crap, one held these gems inside:



I even have an idea where to store the remaining 6 cabinets. ;D

Fuuuuuuu... That's a £1000 worth of AD549s!  (Where's the gobsmacked emoji?)
« Last Edit: May 30, 2020, 05:31:39 pm by Cerebus »
Anybody got a syringe I can use to squeeze the magic smoke back into this?
 

Online med6753

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #59849 on: May 30, 2020, 02:51:42 pm »
Bench power supply / supplies and a Suitable current limiting resistor. They can have 20v drop across them easily.

Measure V across diode to get voltage drop and measure V across R to get whether or not the diode is fucked.

OK, what size current limiting resistor should I start with?
An old gray beard with an attitude.
 


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