What did you buy today? Post your latest purchase!

[Martin72]

Time to clean my desk...
https://evision-webshop.eu/siglent/sdg-2-rmk-rackmount-kit

Arrived, looks solid...

[RAPo]

An Infiray P2 Pro with macro lens and usb-c female-female adapter (in order to use it on a pc).

[DiTBho]

Funny you should mention Cargo type wheels

Two days before xmas I was walking along a street in the center of Copenhagen, and got impressed by a yellow Cargo bicycle with 3 wheels!
The cargo-box was on the front part, while a belt internal gear engine on the rear wheel, plus a Bosh electric motor.

Tempted to buy, when I asekd for the price, the owner said that he paid something like 5K euro.

[armandine2]

After a couple of hiccups  with my SMD version I just bought a handful of these THT ammeter kits.

The SMD version back on track after refreshing my theoretical understanding. 

[PlainName]

He says it ain't worth nine bucks, but I'd like to see him buy the parts, design the PCB and have one made, all for $9. And then ship it somewhere for nothing.

[mengfei]

Skyfire Flashlight that can shine light at the moon hahaha
this is one of those FL that you actually see the beam in narrow mode, it uses those massive 26650 batt's!

[Calambres]

OBD2 thingie:

[armandine2]

He says it ain't worth nine bucks, but I'd like to see him buy the parts, design the PCB and have one made, all for $9. And then ship it somewhere for nothing.

yes, for my smd voltmeter/ammeter the 7 segment 10mm LEDs are £2 each - then add the 7107 ic, the voltage reference ICL8069, passives and pcbs 

https://uk.rs-online.com/web/p/led-displays/7085229

[cte]

Got this Toellner 7706 function generator today. Seems fully functional. Case and PCBs are in nearly mint condition.



Mfg date 1989

[w.v.s.]

A Keithley 2001M

Nice! Did you already check the electrolytic capacitors? It is highly recommended to do so.

[w.v.s.]

An approx. 10cm glass ball. I am not targeting a second career as fortune teller, but wanted to have it 

[beanflying]

An approx. 10cm glass ball. I am not targeting a second career as fortune teller, but wanted to have it 

Light source three mirrors and make yourself a mega Kaleidoscope for fun

[RAPo]

I've ordered the Zoyi 703s at their store

[SeanB]

An approx. 10cm glass ball. I am not targeting a second career as fortune teller, but wanted to have it 

Do not leave where direct sunlight can hit it, those have a very common use as a helioscope, burning an image onto a piece of paper of the path of the sun across the sky.

[w.v.s.]

An approx. 10cm glass ball. I am not targeting a second career as fortune teller, but wanted to have it 

Do not leave where direct sunlight can hit it, those have a very common use as a helioscope, burning an image onto a piece of paper of the path of the sun across the sky.

Thank you for the hint! I'm aware of that, but safety hints are better mentioned a bit more often than too less.

[jasonRF]

Just picked up a fully functional Tenma 72-4045a power supply.  Sure looks the same as the Tek CPS250 and the BK Precision 1651, but it was less expensive on the used market.  I don't know if the guts are the same, though.  Got for $70 (US) delivered; about half the cost was shipping. 

[pqass]

Giving the old CRO a workout comparing the OCXO in the counter with my new [to me] HP 33120A. 
Unfortunately, the function generator doesn't have the external 10Mhz ref. input option.

EDIT:  I've since discovered the calibration menu which allows for frequency trimming.  The counter and FG are now consistent.  So Lissajous is no longer sad.   

[SiliconWizard]

So is this a sad Lissajous on the scope?

[rdl]

I have never seen a Tenma version of that power supply. I have both Tektronix and BK versions. There are small differences in output specification. I don't know if those are from actual hardware differences, slight changes over the years, or maybe just Tektronix de-rating out of caution. I have never had both taken apart at the same time, but they use such jelly bean parts if there is a hardware difference it's probably the transformer.

[Martin72]

5 pcs of BNC-Caps...

[tautech]

5 pcs of BNC-Caps...

Now you can test for scope baseline noise in AC or DC input coupling and ground coupled. 

[Martin72]

Hehe, guess why I've bought them....

[zapta]

I am using 3D printable covers. Non conductive but colorful. The main reason was that I was using for trigger input to be on the right and often connected CH1 to the trigger input by mistake.

https://www.printables.com/model/188788-bnc-connector-dust-cap

[tautech]

Hehe, guess why I've bought them....

You already told me and not sharing your secret.   

[rfclown]

So I've been stuck at home for 2 weeks recovering from COVID. Ran out of coffee (among other thing). Ordered some green so I'd not be out of fresh coffee if run out again. Hadn't roasted in a while. Roasted each of the three types I ordered into second crack. Tomorrow I'll try them drip just to taste the difference, and espresso, which is how I make my coffee regularly. When I used to roast years ago, I found that I liked the coffee better if I let it settle a few days after roasting; but I need my coffee NOW, so tomorrow I grind some. It isn't roasted as dark as it looks in the picture. When I used to roast for drip, my go-to favorite was Guatemalan Antigua, and I also liked Sumatra and Java. Knob on the popper is a dimmer in series with the heating element to lower the heat. Without it, this popper roasted WAY too fast. I made my selections based partially on low price. Not familiar with any of these, so it's a crap shoot.