Author Topic: What did you buy today? Post your latest purchase! (Read 3087325 times)

technix · « **Reply #8000 on:** March 13, 2019, 04:30:32 am »

Quote from: electromotive on March 12, 2019, 02:48:52 am

Picked up a decent used HP Slimline to replace my dead bench PC. I'll be doing a few minor upgrades to it.

Two things you may want to add in there: a better processor and a graphics card. Just buy both used and you will get a good performer as a bench-side computer.

Mortymore · « **Reply #8001 on:** March 14, 2019, 01:39:54 pm »

Received this 858D+ hot air station today, from Amazon.de (€30...). One of the cheapest I could find, delivered.

When I have the time... I will "take it apart"

gamalot · « **Reply #8002 on:** March 15, 2019, 04:42:37 am »

SONY/Tektronix DG2040 Data Generator

SiliconWizard · « **Reply #8003 on:** March 15, 2019, 04:44:10 pm »

Quote from: gamalot on March 15, 2019, 04:42:37 am

SONY/Tektronix DG2040 Data Generator

Nice!

Vgkid · « **Reply #8004 on:** March 15, 2019, 09:03:50 pm »

An a22 amplifier , hope it works. If not i'm throwing away money.

electromotive · « **Reply #8005 on:** March 16, 2019, 04:25:53 am »

Quote from: technix on March 13, 2019, 04:30:32 am

Two things you may want to add in there: a better processor and a graphics card. Just buy both used and you will get a good performer as a bench-side computer.

I've got an SSD drive and AMD ATI Radeon HD 7570 1GB video card for it. I will be upgrading to a quad core i5 as well. That should be plenty for anything I'll be using it for.

DC1MC · « **Reply #8006 on:** March 17, 2019, 08:20:58 am »

Got for 1EUR

this baby Extron GLI-350xi (see attached pictures for a baby-teardown

), hopefully will make a 10MHz/1MHz distribution box for the GPSDO and Rubidium sources.

I'm wondering if it has enough sockets or should I bid on one of these

:
eBay auction: #333106244397
or even this
eBay auction: #333106462244

They seem to be pretty modular, so if another forum member ask for a card I should be able to provide

.

Cheers,
DC1MC

_Wim_ · « **Reply #8007 on:** March 17, 2019, 08:33:57 am »

Quote from: DC1MC on March 17, 2019, 08:20:58 am

Got for 1EUR this baby Extron GLI-350xi (see attached pictures for a baby-teardown ), hopefully will make a 10MHz/1MHz distribution box for the GPSDO and Rubidium sources.

I'm wondering if it has enough sockets or should I bid on one of these :
eBay auction: #333106244397
or even this
eBay auction: #333106462244

They seem to be pretty modular, so if another forum member ask for a card I should be able to provide .

Cheers,
DC1MC

Strange mix of 50 ohm (output) and 75 ohm bnc's (input). The units in the Ebay links are completely 75 ohm bnc's.

DC1MC · « **Reply #8008 on:** March 17, 2019, 08:38:54 am »

Quote from: _Wim_ on March 17, 2019, 08:33:57 am

Quote from: DC1MC on March 17, 2019, 08:20:58 am
Got for 1EUR this baby Extron GLI-350xi (see attached pictures for a baby-teardown ), hopefully will make a 10MHz/1MHz distribution box for the GPSDO and Rubidium sources.

I'm wondering if it has enough sockets or should I bid on one of these :
eBay auction: #333106244397
or even this
eBay auction: #333106462244

They seem to be pretty modular, so if another forum member ask for a card I should be able to provide .

Cheers,
DC1MC

Strange mix of 50 ohm (output) and 75 ohm bnc's (input). The units in the Ebay links are completely 75 ohm bnc's.

How do you distinguish them, I've always been curious, or is a datasheet thing ? In the case of my baby it's probably because the standard for analogue video is 75ohm but the device is made to communicate with a similar device, so they used the best impedance for the distance.

DC1MC

_Wim_ · « **Reply #8009 on:** March 17, 2019, 08:59:10 am »

Quote from: DC1MC on March 17, 2019, 08:38:54 am

How do you distinguish them, I've always been curious, or is a datasheet thing ?

This link shows a nice comparison side by side:
http://www.cctvinstitute.com.br/bnc-75-or-50-ohms.html

capt bullshot · « **Reply #8010 on:** March 17, 2019, 09:01:53 am »

75Ohm BNC have less (or none at all) dielectric around the center pin than 50 Ohm BNC connectors.
The video stuff is supposed 75 Ohm, so the 50 Ohm output connectors are in the wrong place.

vk6zgo · « **Reply #8011 on:** March 17, 2019, 09:42:35 am »

Quote from: capt bullshot on March 17, 2019, 09:01:53 am

75Ohm BNC have less (or none at all) dielectric around the center pin than 50 Ohm BNC connectors.
The video stuff is supposed 75 Ohm, so the 50 Ohm output connectors are in the wrong place.

Historically, the difference at analog video bandwidths didn't really matter.
Many Studio patch panels were wired with 50 ohm connectors, as they are less fragile than true 75 ohm connectors.
When they started piping digital video signals around the Studios, the impedance became more important.

DC1MC · « **Reply #8012 on:** March 17, 2019, 02:14:51 pm »

Quote from: _Wim_ on March 17, 2019, 08:59:10 am

Quote from: DC1MC on March 17, 2019, 08:38:54 am
How do you distinguish them, I've always been curious, or is a datasheet thing ?

This link shows a nice comparison side by side:
http://www.cctvinstitute.com.br/bnc-75-or-50-ohms.html

Today I learned

Cheers,
DC1MC

GregDunn · « **Reply #8013 on:** March 17, 2019, 10:58:34 pm »

Getting tired of using a manual solder sucker and trying to cleanly remove through hole parts during repairs, so I went to a hamfest today and scored a factory refurb Hakko 808 with limited warranty (the seller is trustworthy - I buy soldering equipt from him regularly).

Soldering gear is its own kind of TEA; there's always just one more thing you need for "that special project".

bitseeker · « **Reply #8014 on:** March 18, 2019, 12:55:29 am »

Nice one, Greg. It looks so fancy with that soft sleeve for the tip.

TERRA Operative · « **Reply #8015 on:** March 18, 2019, 04:56:53 am »

Nice desoldering gun. I love mine (different model Hakko) and use it all the time.

Bought a scrap HP 5340A for parts I need to get mine running.

I need the older transformer with the 155V winding for the nixies, and this also comes with the otherwise unobtanium smaller Option 001 transformer to power the optional OCXO, along with a bunch of other bits to replace missing parts in my unit.

I'll spin up my own Opt 001 power supply PCB and the OCXO is available online as it was used in multiple HP stuffs over the years.

georges80 · « **Reply #8016 on:** March 19, 2019, 12:05:42 am »

So, I bought a bk9104 a year or so ago for some testing of a led driver board that had to operate at about 60V and several amps input.

Now I need a new supply to deal with 12V or higher and at least 12A at the input. So, in steps a bk9103 (320W and up to 42V or 20A).

Pic of siblings

cheers,
george.

bitseeker · « **Reply #8017 on:** March 19, 2019, 01:42:40 am »

But, but...they're turned off!

georges80 · « **Reply #8018 on:** March 19, 2019, 02:04:58 am »

Ok, just for you, one of them turned on and powering the LED driver prototype.

About 180W out from the supply and about 170 reaching the the driver and about 162W of that reaching the LEDs. Pretty bright

cheers,
george.

mixedreader · « **Reply #8019 on:** March 19, 2019, 02:36:57 am »

A portable hard disk, MY PASSPORT by Western Digital.

bitseeker · « **Reply #8020 on:** March 19, 2019, 02:48:54 am »

Quote from: georges80 on March 19, 2019, 02:04:58 am

Ok, just for you, one of them turned on and powering the LED driver prototype.

About 180W out from the supply and about 170 reaching the the driver and about 162W of that reaching the LEDs. Pretty bright

Muuuch better! Thanks, George.

tautech · « **Reply #8021 on:** March 19, 2019, 03:24:54 am »

Quote from: blueskull on March 19, 2019, 03:03:29 am

Two packs of 10m LAN cables. Looking for some 10GbE LAN cables that are honestly rated, only to find Amazon cables are all fake "CAT 7" with no bundle-level shielding.
This is also not bundle-level shielded, but at least this is honestly rated at CAT 6A, not CAT 7.

Weird, but sometimes the Japanese only sell some of their products domestically, and if you want it outside Japan, you have to buy it from shipping agents and pay a hefty international postage.

You found the flat ones you were after, very nice.

TERRA Operative · « **Reply #8022 on:** March 19, 2019, 03:36:34 am »

If you need more of those flat ones, hit me up. I'm sure I can send them cheaper than a shipping broker.

McBryce · « **Reply #8023 on:** March 19, 2019, 07:40:19 am »

Just picked these Nearfield Antennas up on ebay for a bargain (€40). I've been using homemade antennas up to now, so a few "real" ones were on my shopping list.

McBryce

_Wim_ · « **Reply #8024 on:** March 19, 2019, 06:44:59 pm »

Quote from: McBryce on March 19, 2019, 07:40:19 am

Just picked these Nearfield Antennas up on ebay for a bargain (€40). I've been using homemade antennas up to now, so a few "real" ones were on my shopping list.

McBryce

Wauw, nice deal! Did you already do a side by side comparison with the homemade ones?


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Author Topic: What did you buy today? Post your latest purchase! (Read 3087325 times)

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