What did you buy today? Post your latest purchase!

[tautech]

Yeah but using those above you can easy do yourself with end nipper/nail pullers when old hoses fray and leak near the torch. Although one line is flammable they are very low pressure and therefore easy to contain with hose crimps like those which are available from any good engineering store.
KISS and something you can do yourself always wins in my book.

[pqass]

...
KISS and something you can do yourself always wins in my book.

FYI for DIY wire [hose] clamp tool here: https://www.eevblog.com/forum/chat/what-did-you-buy-today-post-your-latest-purchase!/msg3991220/#msg3991220. 
More loops moar-betta.

[bdunham7]

I haven't posted in this thread before even though I buy all sorts of random stuff, but this was too good to not mention.

A Tektronix P6015 20/40kV probe, new in box with a full can of dielectric freon.  What are the odds of finding that?

[tautech]

Rare as rocking horse poo !
Good find 

[armandine2]

My Chauvin Arnoux 1-10 ohm Decade Resistance Box has just landed - my initial disappointment is receding .

It's educational equipment, with something of a retro design. That to me looked better in the brochure than it did out of the box. 

 

[McBryce]

My Chauvin Arnoux 1-10 ohm Decade Resistance Box has just landed - my initial disappointment is receding .

It's educational equipment, with something of a retro design. That to me looked better in the brochure than it did out of the box. 

Surely all those inter-connections make it rather inaccurate?

McBryce.

[armandine2]

sourcing all the boxes is too expensive for me, to ascertain accuracy

[HighVoltage]

I haven't posted in this thread before even though I buy all sorts of random stuff, but this was too good to not mention.

A Tektronix P6015 20/40kV probe, new in box with a full can of dielectric freon.  What are the odds of finding that?

Nice find!
I was lucky like this before as well and still have two full cans of FREON.
But this is extremely rare these days.

The FREON filled probes have the benefit of higher voltage rating and it makes the probes repairable.
I had a broken P61015A that is gel filled and it was near impossible to peal out the gel and repair it.

For special applications like this, we should still be able to buy FREON.

[TomKatt]

For special applications like this, we should still be able to buy FREON.

Somewhere I still have a small bottle of Radio Shack 'Tape Head Cleaner' aka liquid freon.  It might be bad for the environment, but I recall it worked great!

[coppercone2]

Or you can buy this tool

https://www.aircraft-tool.com/shop/detail.aspx?id=CLT01&AspxAutoDetectCookieSupport=1

[vk6zgo]

For special applications like this, we should still be able to buy FREON.

Somewhere I still have a small bottle of Radio Shack 'Tape Head Cleaner' aka liquid freon.  It might be bad for the environment, but I recall it worked great!

I remember my first foray into being a TV studio Tech (actually a trainee at the time).
I was told to clean the gate of a projector, & given a brush & a shallow bowl of liquid freon to do so.

The freon evaporated quicker than I could work!
At the time I was so concerned with doing a good job, I didn't realise that it was their equivalent of sending the apprentice for a "long weight".

[jonovid]

DC motors with gears

  -AA battery not included , size comparison

[Neepa]

A Keithley 2000 with still valid calibration until September of this year. Bought from a Lab in Ireland.

Gonna get the short and resistance calibration plug from krasimir for it soon too. Also some probes probably.

Will use it to check my HP4145A SC Parameter Analyzer. See if it is still in spec.

[armandine2]

My MOD surplus Racal-Dana 1991 nanosecond Universal Counter has arrived ... promptly from Rays-Tek, thanks guys.

Doesn't photograph so bad - although a bit grubby, will do a functional check and take a closer look this evening.

My first counter, and possibly my last bit of standard test equipment outstanding 

i'm pressing switches and imagining I won't have to mod them 

Ed. to add test picture

[paulca]

JST crimping tool.

Happy.  I was quite surprised at how reliable and effective the crimper is. 

First thing I did was make male dupoint, then female dupoint, then steel pin breadboard wire...  UART leads for my FTDI quad UART.  It's such a simple quality of life up, but it's awesome. 

I'm sick and tired of DuPoint.  The make a brilliant connection the FIRST time.  Every time after that they just get looser and looser.  After about 10 disconnects/reconnects the just stop gripping.

Actually my main bug bear with them at the moment is when mixed with steel pin breadboard jumpers, the dupoints push the breadboard jaws open far enough to cause bad contact with the jumpers adjacent to it.

Wrong forum, but is there a reliale way to tighten up dupoints?  I have tried pinching the exposed metal bit with pliers but it doesn't really work.

[PlainName]

JST crimping tool.

Got a part number or URL?

[paulca]

JST crimping tool.

Got a part number or URL?

https://www.amazon.co.uk/dp/B00YGLKBSK

I think it's a clone of a more expensive branded one.  Not much cheaper though.  The branded one was £35.

[PlainName]

Thanks.

Turns out it's one I ordered a while ago and sent back for a refund!

Hmmm. The page for that says it's iCrimp, whereas my order says iWiss. Perhaps they've subtly changed it.

[paulca]

Thanks.

Turns out it's one I ordered a while ago and sent back for a refund!

Hmmm. The page for that says it's iCrimp, whereas my order says iWiss. Perhaps they've subtly changed it.

There are many varities.  I started with BigClive's video about them.  There are some with diecast jaws which just don't work.  You might have got unlucky.

[RAPo]

A DMM-check plus with L/C-Option came in stock, so I ordered one.

[Detlev]

Today two H&S N-SMA adapters arrived  . Unfortunately, the SA will come in two months...

[RAPo]

The Peak Electronics DCA75+LCR45 Atlas pro combo package and a corresponding 3D stand will arrive tomorrow.

[nightfire]

A vintage Philips 1507 Lab linear power supply. Cool thing is that schematics are available.
Device is in good condition, and after about 50 years, some sticky plastics inside.
I think i will clean it a bit and look for oxidation,  but even yet the pots seem to work nice.
Interesting: With voltage knob turned totally left, I measure -0.6 Volts  on the output...

[tom66]

A vintage Philips 1507 Lab linear power supply. Cool thing is that schematics are available.
Device is in good condition, and after about 50 years, some sticky plastics inside.
I think i will clean it a bit and look for oxidation,  but even yet the pots seem to work nice.
Interesting: With voltage knob turned totally left, I measure -0.6 Volts  on the output...

I've seen a very small negative output on a linear PSU before, I believe the issue is the setpoint goes to zero, and a small offset in the control loop (usually powered by a bipolar supply) biases the base of the pass transistor quite negative. So then the leakage through the BE junction pulls the output very slightly negative. If you put anything more than a tiny load on the output it'll roll back to zero, so it's not an issue in practice. Also there's usually a reverse biased diode on the output which will clamp the output.

[unknownparticle]

My MOD surplus Racal-Dana 1991 nanosecond Universal Counter has arrived ... promptly from Rays-Tek, thanks guys.

Doesn't photograph so bad - although a bit grubby, will do a functional check and take a closer look this evening.

My first counter, and possibly my last bit of standard test equipment outstanding 

i'm pressing switches and imagining I won't have to mod them 

Ed. to add test picture

I have one of these, very nice unit with excellent build quality for modern stuff.  Bought it at an MOD surplus sale many years ago, it was mainly for machinery so no one knew what it was, therefore I got it for the £10 opening bid!  I suspected it could have been faulty but it worked perfectly.