Author Topic: Test Equipment Anonymous (TEA) group therapy thread (Read 18840629 times)

xrunner · « **Reply #38750 on:** September 12, 2019, 07:30:01 pm »

Quote from: bd139 on September 12, 2019, 07:27:41 pm

Just buy some from Aliexpress!

BU508A · « **Reply #38751 on:** September 12, 2019, 08:58:15 pm »

Quote from: mnementh on September 12, 2019, 04:13:51 pm

In Other News...

OH MY FUCKING GAWWD!!! I CAN SEE THE LIVING ROOM FLOOR!!!

mnem
*small moving-time victory number 57*

Speaking of such ... yesterday I was looking for a case for a little project (adapt a C245/T245 to a JBC HD-2B)
and in the box where my Fischer aluminium cases are stored, I've found some long-missing parts

Now I can hopefully attack this other project on my list (precision constant current source from 1µA to 100mA)

mnementh · « **Reply #38752 on:** September 12, 2019, 09:10:15 pm »

Yup. Fucking amazing what you'll find as soon as you start looking for something else...

mnem
"Not all those who wander are lost." ~ Tolkein

tggzzz · « **Reply #38753 on:** September 12, 2019, 09:24:54 pm »

Quote from: med6753 on September 12, 2019, 05:33:04 pm

They're out, finally. And with only one fubar'ed land pattern which has been repaired.

When that has happened to me I've duplicated any "hidden under the capacitor" tracks with wires on the other accessible side.

Saves me wondering whether the solder has wicked through properly.

bd139 · « **Reply #38754 on:** September 12, 2019, 09:26:43 pm »

1740A has been on for 5 hours now and hasn't blown up again and the connector and rectifiers aren't melting any more

Not only that I checked cal against my AWG and the damn thing is bang on the mark. I was rather surprised.

tautech · « **Reply #38755 on:** September 12, 2019, 09:33:19 pm »

Quote from: bd139 on September 12, 2019, 09:26:43 pm

1740A has been on for 5 hours now and hasn't blown up again and the connector and rectifiers aren't melting any more

Not only that I checked cal against my AWG and the damn thing is bang on the mark. I was rather surprised.

That's very normal for a PSU repair. Get the rails right and everything falls back into place.

Neomys Sapiens · « **Reply #38756 on:** September 12, 2019, 10:00:31 pm »

Quote from: mnementh on September 12, 2019, 04:13:51 pm

In Other News...

OH MY FUCKING GAWWD!!! I CAN SEE THE LIVING ROOM FLOOR!!!

mnem
*small moving-time victory number 57*

Are you sure it isn't a trompe-l'oeil left by the termites?

mnementh · « **Reply #38757 on:** September 12, 2019, 11:43:03 pm »

Those would be some mighty special termites, with terrifying appetites... my floors are ceramic tile over the floating concrete slab the entire house is built on. I can't rule that out tho… they've been here a lot longer than we mere humans have; pretty sure they got a seat or two on the City Council.

mnem
Yet ANOTHER reason to be glad I'm leaving...

beanflying · « **Reply #38758 on:** September 12, 2019, 11:56:55 pm »

I will send my Mum over to mess up your floor if you like. A few days ago she took a fall over her feet and on the way down tried sanding the chimney with her cheek and to stop the fall tried breaking the hearth tiles with her knee

Time to buy here a bubble wrap suit for Christmas .......

Cataract surgery coming up early next year @bd139

mnementh · « **Reply #38759 on:** September 13, 2019, 12:25:55 am »

Here you go...

mnem
Domo Origato, Sumo Grandma!!!

0culus · « **Reply #38760 on:** September 13, 2019, 01:06:31 am »

Got the $125 Data Precision 2045 today...appears to be in fantastic shape. After some confusion thinking there was no output, I realized that channel 1 of the 7A26 amplifier was set to ground...

xrunner · « **Reply #38761 on:** September 13, 2019, 01:10:17 am »

Quote from: 0culus on September 13, 2019, 01:06:31 am

Got the $125 Data Precision 2045 today...appears to be in fantastic shape. After some confusion thinking there was no output, I realized that channel 1 of the 7A26 amplifier was set to ground...

Kewl. That looks like a ton of fun. That's one I've not ever seen before. Congrats.

bitseeker · « **Reply #38762 on:** September 13, 2019, 02:04:50 am »

Quote from: bd139 on September 12, 2019, 07:02:27 am

HP power sensors is one graveyard I do not set foot in

Yeah, it's a bit depressing. $:-\$

bitseeker · « **Reply #38763 on:** September 13, 2019, 02:05:46 am »

Quote from: med6753 on September 12, 2019, 06:49:28 pm

Wow, that's pretty dramatic. You almost need daughter boards for them.

0culus · « **Reply #38764 on:** September 13, 2019, 03:17:32 am »

Quote from: bitseeker on September 13, 2019, 02:04:50 am

Quote from: bd139 on September 12, 2019, 07:02:27 am
HP power sensors is one graveyard I do not set foot in

Yeah, it's a bit depressing. $:-\$

On the bright side, the 8484A sensor I got a few months ago seems to work extremely well with the auction special 436A meter I got recently (same auction as the 7104). I need to break down and get the special calibrated attenuator that it would have come with new.

0culus · « **Reply #38765 on:** September 13, 2019, 03:22:26 am »

Quote from: xrunner on September 13, 2019, 01:10:17 am

Quote from: 0culus on September 13, 2019, 01:06:31 am
Got the $125 Data Precision 2045 today...appears to be in fantastic shape. After some confusion thinking there was no output, I realized that channel 1 of the 7A26 amplifier was set to ground...

Kewl. That looks like a ton of fun. That's one I've not ever seen before. Congrats.

It's pretty awesome, had a chance to play with the polynomial waveform features tonight. The ability to enter mathematical expressions directly is definitely neat.

worsthorse · « **Reply #38766 on:** September 13, 2019, 04:28:58 am »

Quote from: bd139 on June 11, 2019, 10:08:02 pm

This looks rather interesting:

https://www.ebay.co.uk/itm/333188748845

Based on https://github.com/ttrftech/NanoVNA

After doing a bit of research, I decided to buy one of these (the original developed by Hugen) and compare it against the DG8SAQ VNWA. Even if it is only good to 50MHz it will be a useful piece of gear to have in the field. Plus it reminds me of all the small, interesting Autek kit from long, long ago.

tggzzz · « **Reply #38767 on:** September 13, 2019, 06:11:34 am »

Quote from: wch on July 17, 2019, 09:51:19 pm

Quote from: bd139 on July 17, 2019, 06:31:48 pm
There's a guy at hamfests here that has a bag of GR-874 connectors and attenuators regularly for £5. I might grab that for the sake of distribution if it turns up again and anyone wants any of the bits.

BD, put me down for some, though I wonder if the shipping will be a killer. I have a 191, 106 and other gear that uses them...

GR-874 to BNC adaptors https://www.ebay.co.uk/itm/BNC-to-GR874-adapters/153637471474

I've found that vendor trustworthy; as you can see he points out "suboptimalities".

BU508A · « **Reply #38768 on:** September 13, 2019, 06:37:05 am »

Quote from: bd139 on June 11, 2019, 10:08:02 pm

This looks rather interesting:

https://www.ebay.co.uk/itm/333188748845

Based on https://github.com/ttrftech/NanoVNA

The video seems to be blocked or broken somehow.

beanflying · « **Reply #38769 on:** September 13, 2019, 06:44:33 am »

Mum safely under a blanket in bed so I escaped for a while.

Just what is needed for TEA cleaning a 20L Espresso making steam cleaner.

Ably supporting the 90kg lump is my hydraulic lifting table eBay auction: #143029362536

And the bling shot of some of the TEA because it was in the area

BU508A · « **Reply #38770 on:** September 13, 2019, 10:56:27 am »

Hello? Is there anybody out there?

*jiggling at the forum*

bd139 · « **Reply #38771 on:** September 13, 2019, 11:11:20 am »

I am alive.

Just got my D75. Previous owner gave me a bag of caps he replaced. Wonder how bad it is

. I prefer broken and untouched!

nixiefreqq · « **Reply #38772 on:** September 13, 2019, 11:20:07 am »

hey oculus

wow.....really cool instrument.

however you accidently included some offensive material in the picture.

no need to apologize.

fixed it for you.

freqq

med6753 · « **Reply #38773 on:** September 13, 2019, 11:47:20 am »

Quote from: nixiefreqq on September 13, 2019, 11:20:07 am

hey oculus

wow.....really cool instrument.

however you accidently included some offensive material in the picture.

no need to apologize.

fixed it for you.

freqq

That's not offensive This is offensive.

bd139 · « **Reply #38774 on:** September 13, 2019, 12:09:47 pm »

Just got D75. 100% write off. Caps have destroyed the board. The guy did a fairly good repair attempt on it with some decent Kemet caps but didn't clean up the mess. It has wicked up the transformer wires and they are all crumbling

. Absolutely no way of saving this one.

I know people who need parts for these so I'm stripping them down and doing that instead.


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Author Topic: Test Equipment Anonymous (TEA) group therapy thread (Read 18840629 times)

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