Test Equipment Anonymous (TEA) group therapy thread

[Inverted18650]

@Med.

I have been thinking, instead of shipping just one anchor, once I get the RR back on the road, maybe I will take a trip up that way and drop off 4 of them. You seem to appreciate them as much as anyone else and they would have a good home there. Let me know if its something you may consider. Cost of fuel is probably less than the cost to post them all up there. I may not need to come all the way up, if you are mobile and that works too.

[Inverted18650]

Tonight I am going to put the 5200A with the Overload light that is always on, up on the bench (actually still at the breakfast table) and see what I can figure out. Anyone else interested in seeing the pics, or even a short video? Spend  several hours reading the manual and watching repair video and have a good idea where to start and see if I can get it back into service. Its still on eBay, of course, but I can adjust the listing accordingly, or remove it all together, given the results.

[med6753]

@Med.

I have been thinking, instead of shipping just one anchor, once I get the RR back on the road, maybe I will take a trip up that way and drop off 4 of them. You seem to appreciate them as much as anyone else and they would have a good home there. Let me know if its something you may consider. Cost of fuel is probably less than the cost to post them all up there. I may not need to come all the way up, if you are mobile and that works too.

Sure, I would entertain that. It's 991 miles one way. How far north are you willing to come? Let me know.

4?? What's 4? All I'm aware of is the 7704 and you want me to look at the Time Mark Generator. 

[med6753]

@Med.

I have been thinking, instead of shipping just one anchor, once I get the RR back on the road, maybe I will take a trip up that way and drop off 4 of them. You seem to appreciate them as much as anyone else and they would have a good home there. Let me know if its something you may consider. Cost of fuel is probably less than the cost to post them all up there. I may not need to come all the way up, if you are mobile and that works too.

Sure, I would entertain that. It's 991 miles one way. How far north are you willing to come? Let me know.

4?? What's 4? All I'm aware of is the 7704 and you want me to look at the Time Mark Generator. 

Additional....mapping it out I'd be coming down I-81 from PA....then hit that small sliver of Maryland and also West Virginia. That's about as far as I'd want to go. 

[Inverted18650]

My wife has family in PA off of I-81..hum...we can work it out shortly. Parts for the RR will be here mid week and we can go from there. Hopefully she'll come back to life with just a bit more lovin'.

[mnementh]

Tonight I am going to put the 5200A with the Overload light that is always on, up on the bench (actually still at the breakfast table) and see what I can figure out. Anyone else interested in seeing the pics, or even a short video? Spend  several hours reading the manual and watching repair video and have a good idea where to start and see if I can get it back into service. Its still on eBay, of course, but I can adjust the listing accordingly, or remove it all together, given the results.

Lemme get this straight... you're talking about going full Monty with a vintage Fluke calibrator; fondling its most delicate tender vitals and juicing it where its dangly bits are, and you want to know IF WE WANT VIDEO?!?

Hello... I'm TEA. HAVE WE MET?!? 

mnem
Here, hold my while I bring up the video...

[med6753]

My wife has family in PA off of I-81..hum...we can work it out shortly. Parts for the RR will be here mid week and we can go from there. Hopefully she'll come back to life with just a bit more lovin'.

Where in PA? I would be coming from NY via I-84 West to Harrisburg then take I-81 South towards you.

[beanflying]

For anyone who hasn't seen them yet this is a good way to reuse salvaged 18650's. Charge and use at the same time, Onboard 5V 90+% eff dc-dc converter and 3V regs and proper charge and protection circuits. 

https://www.aliexpress.com/item/ESP32-ESP32S-For-Wemos-For-Raspberry-Pi-18650-Battery-Charge-Shield-Board-V3-Micro-USB-Port/32870411748.html?spm=a2g0s.9042311.0.0.5aa04c4dw78fPg

Cheap Cheap not so Ruff Ruff 

[med6753]

For anyone who hasn't seen them yet this is a good way to reuse salvaged 18650's. Charge and use at the same time, Onboard 5V 90+% eff dc-dc converter and 3V regs and proper charge and protection circuits. 

https://www.aliexpress.com/item/ESP32-ESP32S-For-Wemos-For-Raspberry-Pi-18650-Battery-Charge-Shield-Board-V3-Micro-USB-Port/32870411748.html?spm=a2g0s.9042311.0.0.5aa04c4dw78fPg

Cheap Cheap not so Ruff Ruff 

Fail, your link sez it's no longer available. 

[Inverted18650]

...can part with TEK units.


Also on a separate note: I chose this name because I take recycled 18650's and build them into power-banks big enough to run greenhouses, cabins, cars, and even homes. I put the 18650's to work with inverters. I havent built a pack in a while but once I get healthy again, I am going to upgrade my backup unit to 15kWh's.

[med6753]

...can part with TEK units.


Also on a separate note: I chose this name because I take recycled 18650's and build them into power-banks big enough to run greenhouses, cabins, cars, and even homes. I put the 18650's to work with inverters. I havent built a pack in a while but once I get healthy again, I am going to upgrade my backup unit to 15kWh's.

Are you serious or are you just pulling my chain??? 

[beanflying]

Fail, your link sez it's no longer available. 

Strange  Plenty of other sources on Aliexpress https://www.aliexpress.com/item/ESP32-ESP32S-For-Wemos-For-Raspberry-Pi-18650-Battery-Charge-Shield-Board-V3-Micro-USB-Port/32846043161.html?spm=2114.search0104.3.17.6e5fdd061CIm8t&ws_ab_test=searchweb0_0,searchweb201602_5_10065_10068_10130_10547_319_317_10548_10696_453_10084_454_10083_10618_10307_537_536_10131_10132_10902_10133_10059_10884_10887_321_322_10103,searchweb201603_56,ppcSwitch_0&algo_expid=a1d72f5f-c903-4f12-b160-75bd9d3859c9-2&algo_pvid=a1d72f5f-c903-4f12-b160-75bd9d3859c9

[Inverted18650]

...can part with TEK units.


Also on a separate note: I chose this name because I take recycled 18650's and build them into power-banks big enough to run greenhouses, cabins, cars, and even homes. I put the 18650's to work with inverters. I havent built a pack in a while but once I get healthy again, I am going to upgrade my backup unit to 15kWh's.

Are you serious or are you just pulling my chain??? 

Four seems fair...gotta leave a few for the other TEK nuts. PM me so we dont crowd up the other chats. Itll be next weekend at best for I can make the trip.

[med6753]

...can part with TEK units.


Also on a separate note: I chose this name because I take recycled 18650's and build them into power-banks big enough to run greenhouses, cabins, cars, and even homes. I put the 18650's to work with inverters. I havent built a pack in a while but once I get healthy again, I am going to upgrade my backup unit to 15kWh's.

Are you serious or are you just pulling my chain??? 

Four seems fair...gotta leave a few for the other TEK nuts.

So I get to pick and choose? Really??? Holy shit. OK.....7704, 2445, 310A, 7603. You better get that Rover fixed pronto even if you have to swim to the UK to get the parts. 

Edit...OK....we'll PM from this point.

[Inverted18650]

For anyone who hasn't seen them yet this is a good way to reuse salvaged 18650's. Charge and use at the same time, Onboard 5V 90+% eff dc-dc converter and 3V regs and proper charge and protection circuits. 

https://www.aliexpress.com/item/ESP32-ESP32S-For-Wemos-For-Raspberry-Pi-18650-Battery-Charge-Shield-Board-V3-Micro-USB-Port/32870411748.html?spm=a2g0s.9042311.0.0.5aa04c4dw78fPg

Cheap Cheap not so Ruff Ruff 

I built a similar unit for testing my cells using the ATMega but used the 4 cell holder tray instead of a the single. The BOM was similar as was cost.

[mnementh]

For anyone who hasn't seen them yet this is a good way to reuse salvaged 18650's. Charge and use at the same time, Onboard 5V 90+% eff dc-dc converter and 3V regs and proper charge and protection circuits. 

https://www.aliexpress.com/item/ESP32-ESP32S-For-Wemos-For-Raspberry-Pi-18650-Battery-Charge-Shield-Board-V3-Micro-USB-Port/32870411748.html?spm=a2g0s.9042311.0.0.5aa04c4dw78fPg

Cheap Cheap not so Ruff Ruff 

10 pieces for $3.75; fits pretty much anywhere. Also works with most small-medium salvaged LiPo cells.

https://www.ebay.com/itm/303045071629

mnem
Feeling totally ratchet. 

[Inverted18650]

For anyone who hasn't seen them yet this is a good way to reuse salvaged 18650's. Charge and use at the same time, Onboard 5V 90+% eff dc-dc converter and 3V regs and proper charge and protection circuits. 

https://www.aliexpress.com/item/ESP32-ESP32S-For-Wemos-For-Raspberry-Pi-18650-Battery-Charge-Shield-Board-V3-Micro-USB-Port/32870411748.html?spm=a2g0s.9042311.0.0.5aa04c4dw78fPg

Cheap Cheap not so Ruff Ruff 

10 pieces for $3.75; fits pretty much anywhere. Also works with most small-medium salvaged LiPo cells.

https://www.ebay.com/itm/303045071629

mnem
Feeling totally ratchet. 

These work well if you just need to charge single cells. Again if you built a pack, don't go here. But for single cell use, hard to beat. But why spend a penny if you just need to charge one cell? Almost all of these are built from the DW01 IC or whatever the newest cheapest replica unit is, and they have voltage swings as high as 4.35V and cutoffs as low as 2.50V...

[beanflying]

10 pieces for $3.75; fits pretty much anywhere. Also works with most small-medium salvaged LiPo cells.

https://www.ebay.com/itm/303045071629

mnem
Feeling totally ratchet. 

I have a bunch of them too but not as flexible as the other to use.

[Inverted18650]

ON THE T.E.A. FRONT

I recently snagged two more 5440B's and another 3245A.That means these 3xx DC standards need a home as soon as possible.
I will have my hands ful with the incoming units.
For now, back to working on the 5200A. Ill start a separate 'repair thread' if anything of interest happens.

[Neomys Sapiens]

That sucks. And what happens after you guys go Brexit? 

Then ordering from the continent will be about the same!

[Specmaster]

That sucks. And what happens after you guys go Brexit? 

Then ordering from the continent will be about the same!

Yep, if it goes ahead we're screwed, because some people cannot let go of the past and move on, others of course are going make a fortune from it, namely those in power I guess because I cannot think of a single reason why else have they not scuppered plans to exit 

[Neomys Sapiens]

Ok, someone please tell me..
WHAT IS IT ABOUT HPAK AND THOSE BLOODY FEET?

The HP6825A is missing all four of them. I am not amused!

But it is the least of my woes with this device. The second part from that triple score did go downwards fast.
External inspection did not rise my concern. no deformations, no debris inside. On the plus side, the jumpers on the terminal strips in the rear seem to be complete.
I took the bottom cover off to have a look at the ground jack (whch is not realy accessible from there, but ok for a look and bit of manipulation) and it is not simply loose, but broken. Real access wil need the front assembly to be taken off, if I can get the part.
Also, the rotary switches feel funny. Mushy. In a way that, were it a Tek, it might have to be put down.
The switches in the 3312A are not nearly as mushy. I dont want to look there right now.
And it not exactly clean.
But that was not the most alarming discovery. There is a spot. No, it is not a particularely nice spot.
It is a scorchmark. Right on the bottom main PCB.
And the only doc that I found has no circuit diagram and no component locator.
Yes, I switched it on. Slight hum, indicator lit, no frying sound. CC Led solidly lit.
No combination of mode and pot positions did cause any reaction.
Zero output.
Disgusting.

[beanflying]

Yep, if it goes ahead we're screwed, because some people cannot let go of the past and move on, others of course are going make a fortune from it, namely those in power I guess because I cannot think of a single reason why else have they not scuppered plans to exit 

Has provided plenty of giggles around the world and plenty of  moments too. Tony Blair "No one could responsibly back a no deal ...." this from the tosser who with Bush started an irresponsible war based on rubbery non facts. 

As you have virtually zero trade deals in place and lack even basic passed legislation not already asking for an extension (minimum) is bordering on criminal negligence on a massive scale.

[Specmaster]

My wife has family in PA off of I-81..hum...we can work it out shortly. Parts for the RR will be here mid week and we can go from there. Hopefully she'll come back to life with just a bit more lovin'.

Hmm, RR, whats that Range Rover or Rolls Royce? both nice cars 

[mnementh]

$40 $33 Amazon 1KW Computer PSU Tech Teardown: How Bad Can It Be?

Part 1 & Part 2 are up. I'm used up. I'll finish the story, but in a few days. 

Short Version: It's Really Modular, it's now only $33, and from what I can see, it's built like the proverbial brick shithouse.

Bronze Efficiency claims are probably balderdash; but they've gotta be reasonably fair to sell to cryptominers. I really wish I still had a working Kill-A-Watt...

mnem
*Juicy*