What did you buy today? Post your latest purchase!

[little_grey]

i got some cheap power supplies
not expecting much but should see me happy for a while.



dispite what dave says, i like the fine/course dials

[ManuelMcLure]

An Ambitrol/Power Designs TW-4005 dual power supply:

Actually arrived Wednesday, I haven't yet had a chance to open it up, but the controls seem smooth and the cosmetic condition is excellent. I'm planning on re-capping it before applying power to it. This should become my main supply for any dual rail circuits.

[bitseeker]

That one's a beauty, ManuelMcLure. Some of us on the forum have ended up with a varied collection of Power Designs supplies. Don't be surprised if some more find their way onto your bench. They seem to like company.

Also, since they're linear supplies, you may find that the caps are in better condition than you'd think for their age. You may want to test them before replacing if you like the look of the vintage cans (or restuff).

[Jay_Diddy_B]

Hi group,

I bought this:



It was included in the accessory pouch for a Tektronix MDO4104-3, but you have seen these scopes before.

Regards,

Jay_Diddy_B

[japasetelagoas]

A rowing machine. https://uploads.tapatalk-cdn.com/20170727/c494a160a2bddd041fa4a0a479637bee.jpg

Good choice of music and exercise.
Should last forever.

Thanks sir, not everyone knows Kaleo.


Sent from my iPhone using Tapatalk

[ManuelMcLure]

That one's a beauty, ManuelMcLure. Some of us on the forum have ended up with a varied collection of Power Designs supplies. Don't be surprised if some more find their way onto your bench. They seem to like company.

Yeah, I must say that the aesthetics of the front panel were a big part of my decision to buy that supply. I mean, how could I say no to those puppy-dog meters?

Also, since they're linear supplies, you may find that the caps are in better condition than you'd think for their age. You may want to test them before replacing if you like the look of the vintage cans (or restuff).

Thanks for the tip. Being a beginner, I don't have a capacitor leakage tester, but I can at least make sure they aren't physically leaking. Hopefully they're good, because I can imagine replacement caps are not going to be cheap.

[BravoV]

Gambled $20 for something I don't even need ....  , an used TDK-Lambda HWS1500-36 1500 Watt rated PSU. It has a dent on top of the case, tested on site, powered on, output voltage measured with DMM is on spot, but no load testing. Hope I win this gamble, wish me luck.

It has two beefy connectors (comparison with TO-220 body), the biggest connectors I had ever own. 

[PartialDischarge]

Bought this General Radio standard decade polystyrene capacitor, from 10uf to 100uF. It was cheap, but I have no idea what to do with it yet 

And yeah, about the size of of a truck battery

[FrankBuss]

But now that I think about it, wouldn't it be nice to build your own rack of lab instruments, or is this already done? So far I've seen only synthesizer modules for this Eurorack type system. And in the audio world this format is often used, so you can add and mix modules from different vendors without problems. All share the same power supply on the back (+/-12V and 5V) and are available in standardized widths, with 1 HP the width granularity (5.08 mm = 1/5") and 128.5 mm height (5"). I bought a few blank front plates as well for DIY modules, they cost only a few Euros, depending on the width (you can see a few mounted, in the video).

Even if it doesn't make sense commercially, I just started with it. Now I have already another +12/-12/+5V fixed voltage power supply 



In its natural habitat:



Don't know where I bought the banana jacks, was in my parts bin, but the blank panel was this. So you can basically build a half decent looking DIY Eurorack module for EUR 3, if you have all the other parts for it. I've seen even panels made with PCB boards, which is a nice idea, because they are so cheap these days, you can add some nice looking silkscreen, and you don't have to do the drills yourself.

[GerardWassink]

Hi all,

Today I bought an addition to my workbench, the RIGOL DM3058E Digital multimeter. (click on the picture for an unboxing blog)

Gerard

[pelule]

Nice unboxing...
Just a remark to the "Wow, not bad, only 4.8 mV off".
Thats 4.8 mV off to the volatge shown on the PSU meter, but does not tell anything regarding the real accuracy in my opinion.
/PeLuLe

[edpalmer42]

Another thing to be careful of with those cheap digital calipers: Some of them don't turn off completely. Turning them off is only turning off the display, so the batteries die pretty quickly whether you are using it or not. To test this, turn off the calipers and then press the "change units" button. Then turn it back on. If the units have changed, the calipers is only switching off the display. I have two cheap digital calipers with different brand names that do this. A real pain, because you have to remove the batteries when it's not in use.

McBryce.

My cheapo digital calipers passed this test, but I noticed that it will turn on when I move the slider.  Looks like the battery is staying out when not in use!

Ed

[GerardWassink]

Nice unboxing...

Thanks...

Just a remark to the "Wow, not bad, only 4.8 mV off".
Thats 4.8 mV off to the volatge shown on the PSU meter, but does not tell anything regarding the real accuracy in my opinion.
/PeLuLe

Oh, I (perhaps somewhat naively) trust the RIGOL, and was commenting on the indication of the PSU.

Gerard

[nctnico]

Bought this General Radio standard decade polystyrene capacitor, from 10uf to 100uF. It was cheap, but I have no idea what to do with it yet 

That looks like a nice bit of kit! Seems useful to check an LCR meter.

[VK5RC]

Some retro HP repair gear.

[Cubdriver]

Some retro HP repair gear.

Those will prove very useful!!   

-Pat

[Tony_G]

Some retro HP repair gear.

Awesome, did you get those from Sparko6079 on EBay? If so that was my 8340B in the photos.

TonyG

[@rt]

I bought a .... drumroll please.... Sony Mavica MVC-FD91

There’s not a lot more I can do until my floppy disk drive also arrives,
but for now, I’ve been to our local nature centre and taken some photos.

[PartialDischarge]

I bought a .... drumroll please.... Sony Mavica MVC-FD91

Nice, people will think you are shooting an expensive 20 or 30Mpix camera when they see you with that brick 

[cdev]

I had two friends who had one of those Mavicas, they used it to set up an automated photo booth at dance parties and art events where people could take pictures of themselves and friends.

[VK5RC]

I bought the extender cards a few at a time, yes the seller was sparko6079 , its  great to be able to get these cards - otherwise repair v difficult. I nearly went insane trying to repair an HP microwave counter without one!

[neo]

A fluke 8800A that i just won on bidding, cheap too at only $40 half of that for shipping.

[Cubdriver]

A fluke 8800A that i just won on bidding, cheap too at only $40 half of that for shipping.

You won it!  Sweet!   

Congrats!  Sounds like you got a good deal on it, too.  Glad to hear, and look forward to seeing some Fluke 8800A pron once you receive it.

-Pat

[Cubdriver]

I snagged a 3430A (complete with HP badge and apparently both feet & tilting bail) for about $35 shipped, and also got POHs (manuals) for the Fairchild 7000A acquired about two years ago and for the Fluke 8200A I hope eventually to get my hands on.  (Under $10 shipped for the latter, which is a steal for a manual on the 'bay.  Now I just need to get the meter to go with it.)

-Pat

[neo]

A fluke 8800A that i just won on bidding, cheap too at only $40 half of that for shipping.

You won it!  Sweet!   

Congrats!  Sounds like you got a good deal on it, too.  Glad to hear, and look forward to seeing some Fluke 8800A pron once you receive it.

-Pat

Thanks and if it is half as good as it looks then it is a good deal. There was almost no competition.