Author Topic: What did you buy today? Post your latest purchase! (Read 3087416 times)

BU508A · « **Reply #5925 on:** March 23, 2018, 12:11:57 pm »

4 pieces of AD587UQ

http://www.analog.com/en/products/linear-products/voltage-references/ad587.html#product-overview

JustSquareEnough · « **Reply #5926 on:** March 23, 2018, 12:18:25 pm »

Quote from: Specmaster on March 19, 2018, 09:38:19 pm

Quote from: blueskull on March 19, 2018, 08:38:08 pm
Quote from: Specmaster on March 19, 2018, 08:23:26 pm
I had to buy a 1TB drive for mr crashed NAS and I got myself a near mint AVO 1001 for a mere fraction of the hard drive cost

Don't know where did you get that WD Red, but just to say, there is a way to get WD Red cheaper, very cheap.
You see, WD is a high tech company selling products to recover their R&D cost, with a huge profit margin, and usually their internal driver customers are either server farms or companies, and they are willing to pay the price.
However, their external driver market is basically dominated by personal buyers, and they don't like to pay for IP.
Therefore, WD and Seagate both sell external drives cheaper than the internal drive inside the enclosure to secure this market.

As a result, you can buy WD Mybook or WD Easystor and strip out the internal drive.
There are 3 possible internal drives, being WD White, WD Red 128MB and WD Red 256MB.
You have to take a bet, the WD White is either rejected WD Red or overstock, so if you get that one, you lose the bet.
Some WD White drives also require you to modify SATA 22P cable since they put a trap to prevent you from using the drives as internal drives.
The WD Red 128 (AKA WD Thailand) and WD 256 (AKA WD China) are both genuine WD Red, but with TLER disabled.
There is also a 4th possibility, HGST Helium, but that's rare, just like winning a lottery.

Don't buy WD 2.5'' external drives, they have USB circuity on HDD PCB and no SATA exposed to external.
Don't buy any external Seagate drives, 2.5'' or 3.5'', they use SMR drives (Seagate Archive) internally.

I got my WD red drive from Amazon UK for £49.99, could have got a normal internal one for £35 but I did not know that the red drives will not hang if something fails to load, it will rely on the remain drives to load the data and move on. The other drives are normal internal ones and they do apparently hang in such an event and it is so annoying especially when the information is duplicated on the remaining 3 drives grr. Seriously thinking about installing 500Gb drives and going back to having just 4 separate drives instead of a raid array, then I could back them up to the 1TB plugged into a caddy on the desktop, more storage capacity and less frustration hopefully.

If you don't have data that changes 'quickly' run the drives seperate and run snapraid. It's a snapshot parity. Then if a drive dies you can restore from parity but you also have individual drives that are still readable/removable... Then if you really need drive pooling use drivepool by snapbit.

This is my current setup and works great I can add any size disk i want as long as my parity drive is as big or bigger. The whole thing is automated nightly via a python script called snapraid runner which will send me an email nightly on the raid status.

I also run backblaze cloud backup to mirror all my important stuff (pictures, home movies, etc) to cloud storage

Edison · « **Reply #5927 on:** March 23, 2018, 12:31:55 pm »

Strange too weird

Yesterday morning I bought the LM 317, I unpacked the LM337.

today
Metal splinter in the eye. I do not know where I came to her.
according to the doctor, she was in her eye for fourteen days
and tonight I did not sleep

BU508A · « **Reply #5928 on:** March 23, 2018, 01:08:02 pm »

Quote from: Edison on March 23, 2018, 12:31:55 pm

Metal splinter in the eye. I do not know where I came to her.
according to the doctor, she was in her eye for fourteen days
and tonight I did not sleep

Oh dear! Get well soon!

Specmaster · « **Reply #5929 on:** March 23, 2018, 01:45:10 pm »

Quote from: BU508A on March 23, 2018, 01:08:02 pm

Quote from: Edison on March 23, 2018, 12:31:55 pm
Metal splinter in the eye. I do not know where I came to her.
according to the doctor, she was in her eye for fourteen days
and tonight I did not sleep

Oh dear! Get well soon!

I had one of those years ago, hospital popped my eye out and used a strong magnet to pull it out. It was a strange sensation I can say for sure. [emoji23]

From mobile device so predictive text might have struck again [emoji83]

Edison · « **Reply #5930 on:** March 23, 2018, 01:52:38 pm »

Quote from: BU508A on March 23, 2018, 01:08:02 pm

Oh dear! Get well soon!

Thank you, tomorrow I'm going to the hospital to change the bandage, so I'm one-eyed

Edison · « **Reply #5931 on:** March 23, 2018, 01:56:55 pm »

Quote from: Specmaster on March 23, 2018, 01:45:10 pm

I had one of those years ago, hospital popped my eye out and used a strong magnet to pull it out. It was a strange sensation I can say for sure. [emoji23]

stainless steel -magnet does not work - he pulled the hook manually

Specmaster · « **Reply #5932 on:** March 23, 2018, 02:15:06 pm »

Quote from: Edison on March 23, 2018, 01:56:55 pm

Quote from: Specmaster on March 23, 2018, 01:45:10 pm
I had one of those years ago, hospital popped my eye out and used a strong magnet to pull it out. It was a strange sensation I can say for sure. [emoji23]
stainless steel -magnet does not work - he pulled the hook manually

Oh, safety glasses next time then. [emoji106]

From mobile device so predictive text might have struck again [emoji83]

salviador · « **Reply #5933 on:** March 23, 2018, 02:35:57 pm »

Just buy IC-Tester , very good product

Edison · « **Reply #5934 on:** March 23, 2018, 02:40:07 pm »

Quote from: Specmaster on March 23, 2018, 02:15:06 pm

Oh, safety glasses next time then. [emoji106]

I use always goggles or face shield, that's why I write - I do not know where and how I bought

Edison · « **Reply #5935 on:** March 23, 2018, 02:44:49 pm »

Quote from: salviador on March 23, 2018, 02:35:57 pm

Just buy IC-Tester , very good product

il tester perfetto

matpro76 · « **Reply #5936 on:** March 24, 2018, 01:18:00 am »

Picked these up recently, just getting the lab setup.

ChrisLX200 · « **Reply #5937 on:** March 24, 2018, 01:25:59 am »

An Agilent 34401A

Should be here early next week.

beanflying · « **Reply #5938 on:** March 24, 2018, 01:49:30 am »

Needed a U/V exposure box to go with my PCB bits of a few days ago. Walking by an op shop and there is a 'working' A4 scanner for $10 sitting in the window. Ordered 300 U/V strip leds for under $10 - SORTED

Already have timer code written for Arduino/4 digit display for another project if I decide to get 'fancy'.

McBryce · « **Reply #5939 on:** March 24, 2018, 09:55:22 am »

Quote from: McBryce on March 19, 2018, 08:18:49 am

Picked up a nice and rather compact isolation transformer. The previous owner had upgraded it from 300VA to 500VA with the biggest Ring Transformer I've ever seen. My old isolation transformer only managed 200VA and was struggling in some circumstances, so it was time to upgrade. Unfortunately, like most modern Isolation transformers, the Earth wire is connected through, making it not fully isolated, but that will be modified as soon as I have time. Never heard of the maker Renesse, nor could I find anything online about the device.

McBryce.

@Kripton2035: It took a few days, but here's what the isolation transformer looks like inside. The 9V battery is for size reference.

McBryce.

SeanB · « **Reply #5940 on:** March 24, 2018, 01:04:22 pm »

Went to the scrap yard today, to drop off some old lead acid batteries. Came back with a nice box of 100A 250V SPST bistable relays, with 15V coils. Interesting in that they also have a built in current shunt, and flying leads for the coil and shunt. Waiting for them to dry out a little though.

URI · « **Reply #5941 on:** March 25, 2018, 07:30:05 pm »

Cleared away some surplus parts I got last week for 7€ including 100x NAIS 9V/2NO THT relays (not shown in the photo):

Specmaster · « **Reply #5942 on:** March 25, 2018, 08:09:45 pm »

All that lot for 7 Euros, you did well there then

URI · « **Reply #5943 on:** March 25, 2018, 08:19:46 pm »

Quote from: Specmaster on March 25, 2018, 08:09:45 pm

All that lot for 7 Euros, you did well there then

Yep, I'm quite happy with it. I think I primarily bought the 2.2kOhm/100W resistors and the 100 relays and the rest of the parts are bonus material.

I can/could use two different parts for my 6114A repair (https://www.eevblog.com/forum/repair/hp-6114a-repair-(fault-regulation-seems-to-work-voltage-low-output-ripple)/msg1461808/#msg1461808):
First the yellow 1µF/450V~ axial foil caps, second the black EPCOS 470µF/100V~ electrolytic caps.

TiN · « **Reply #5944 on:** March 26, 2018, 10:55:29 am »

Don't hate me folks... ESI SR104...

URI · « **Reply #5945 on:** March 26, 2018, 04:54:58 pm »

Quote from: TiN on March 26, 2018, 10:55:29 am

Don't hate me folks... ESI SR104...

You'll post pics, won't you?!

DC1MC · « **Reply #5946 on:** March 26, 2018, 05:26:34 pm »

Quote from: TiN on March 26, 2018, 10:55:29 am

Don't hate me folks... ESI SR104...

With or without the oil

?

TiN · « **Reply #5947 on:** March 26, 2018, 05:59:13 pm »

Once I got it. I lost on Wavetek 7000 biddings, so at least saved money on that stuff

Elasia · « **Reply #5948 on:** March 26, 2018, 06:52:21 pm »

I bought this.. figure its time to upgrade from the ol weller analog and see how this one goes

BU508A · « **Reply #5949 on:** March 26, 2018, 09:50:45 pm »

Quote from: TiN on March 26, 2018, 10:55:29 am

Don't hate me folks... ESI SR104...

I guess it was this one:

https://www.ebay.com/itm/112893444541


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Author Topic: What did you buy today? Post your latest purchase! (Read 3087416 times)

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