What did you buy today? Post your latest purchase!

[Specmaster]

HP 410C Voltmeter in mint condition with accessories.
One has to resort to 60s technology to have a meter with 100Mohm input impedance up to 1500V
Also for non-believers of the unique piece of technology this is, here is it measuring a 50Mhz sine amplitude, put out 500mVrms, measured 520mVrms

Nice bit of kit but I'm sure you get better input impedance with digital, like fluke 8842A and hp3478a meters?

[PartialDischarge]

Nice bit of kit but I'm sure you get better input impedance with digital, like fluke 8842A and hp3478a meters?

Unfortunately no, the standard in bench dmms is high impedance below 10 or 30V, like 10G, and then 10Meg and up to 1000V only, for the 3478A, 34401A, 3458A, etc...  I'd prefer to have a higher flat input R and up to a bit more voltage like 1500 or 2000V.
4.5 or 5.5 digits mean nothing when just probing causes a 30% change in the signal. I understand that oscilloscopes need to keep input Z low, but never got why the standard for DMMs is only 10M, when compensation is not needed.

[URI]

Ups, nearly hit the "buy now" for a Fluke PM6681 universal counter on *bay without thinking.
Managed to check the feedback profile first as fast as I could and then hit "buy now":
In fully working order and overall very good shape for $260 including shipping and customs I couldn't stand it.   

Now waiting for it being transported from the US to Germany..      

[Kjelt]

Just noticed a folded paper that was beneath the meter, can't believe they made each scale unique for each instrument, now I get why it is so accurate.

Actually quite clever, do not design the electronics with expensive high accuracy components, just adjust the readout meter.
Could be something we can re-use in this century as well if we make "intelligent" meters.
It just has to display the correct value for the incorrect internal output.

[HackedFridgeMagnet]

Not for me but for work. I would rather pay off the mortgage.



https://www.keysight.com/en/pdx-2747128-pn-PA2203A/integravision-power-analyzer-4-channels-3-phase-ac?cc=AU&lc=eng

I hope it's as good as it sounds!

Anyone used one?

[gamalot]

Two 7" capacitive touch screen TFT LCD modules for my Raspberry Pi. 

[Kjelt]

Two 7" capacitive touch screen TFT LCD modules for my Raspberry Pi. 

They look nice, what is the price and source ?

[gamalot]

Two 7" capacitive touch screen TFT LCD modules for my Raspberry Pi. 

They look nice, what is the price and source ?

hummm, they were about 230CNY/pc, do you read Chinese?

https://www.86daigou.com/item/534634137044.html

[Specmaster]

Two 7" capacitive touch screen TFT LCD modules for my Raspberry Pi. 

They look nice, what is the price and source ?

hummm, they were about 230CNY/pc, do you read Chinese?

https://www.86daigou.com/item/534634137044.html

Yep, its $27.29 AUD

[aargee]

A case of the right place at the right time... Bunnings Warehouse (Hardware retailer here in Aus) had a clearance rack of light bulbs, huge haul of LED bulbs for family everything $2 a piece  e.g. Pack of 3 x  10.5W LED bulbs for $2
Looks like it was to make room for new releases of the same product  .

The stock supply was all devastated within a few hours, apparently some electrician came in and offered to buy whatever was left...

BTW it is really hard (impossible?) to find LED bulbs rated for enclosed light fittings.

[GreyWoolfe]

I got to treat myself to a Donagen AL-S1 Optivisor headband magnifier with 4 different lenses.  It will be nice to get rid of my old, cheep, scratched up magnifier.

[technix]

A case of the right place at the right time... Bunnings Warehouse (Hardware retailer here in Aus) had a clearance rack of light bulbs, huge haul of LED bulbs for family everything $2 a piece  e.g. Pack of 3 x  10.5W LED bulbs for $2
Looks like it was to make room for new releases of the same product  .

The stock supply was all devastated within a few hours, apparently some electrician came in and offered to buy whatever was left...

BTW it is really hard (impossible?) to find LED bulbs rated for enclosed light fittings.

LED's don't give out much heat in the first place, so it is likely they don't need a specific rating for enclosed fittings.

[sleemanj]

LED's don't give out much heat in the first place, so it is likely they don't need a specific rating for enclosed fittings.

Err.. LED lighting gives out plenty of heat, that is the main killer of LEDs, insufficient cooling, be it passive or active.  It's unlikely to cause a fire, but putting most leds in an enclosed space will almost certainly dramatically hasten it's failure.

LEDs are more efficient than other forms of lighting, and I can run faster than a one legged man in an ice storm... neither is anything to brag about.

[beanflying]

I have just made a few enclosed 3D printed lamp shades (faceted sealed 8" Balls), fitted them with 4W filament style lamps to keep the heat down. So Far So Good even using PLA 

[TERRA Operative]

Another score from Yahoo Auctions Japan.

A HP 5340A, hoping it's a nixie version but the LED display version would be fine. Now to find a service manual...

Pic is from the auction that I just won tonight.

[Terry01]

So I pulled the trigger on a 121GW today! I've been swithering for ages and just thought "f*($ it", today i'm getting 1! 

We'll se how I go with it and i'll report back in a few days when I get it how I go with it.

[Shock]

A case of the right place at the right time... Bunnings Warehouse (Hardware retailer here in Aus) had a clearance rack of light bulbs

Well done, I replaced mine and brought extras when they were about $3-4 which was about 50% off or so. But a 3 pack for $2 that is a score. The new ones I saw were warm/white switchable but waste of money and more things to go wrong.

I've noticed no failures so far since I've had these. If you want you stretch your $2 you can always choose to repair as well .

[rsjsouza]

A Sanwa PM300 and 2 packs of uSleeve. Last time I ordered a pack of uSleeve, USPS got it lost.
This time with DHL, and so far DHL has not lost a single package for me among tens of packages, from $6000 scope to $20 PCB.

Congrats, blueskull. The PM300 is a nifty meter - its only issue for me is the absence of some sort of tilting bail. I am always having to find something to keep in at an angle.

[med6753]

Siglent SD3055 5.5 digit bench DMM

[vinito]

Received one of these today:


Ordered one of these two hours later:


Also got on a waiting list for one of these:


Help!!!    I am an ignorant rookie and may or may not even use this stuff much, though my interest and free time are both increasing so hope to learn a bunch of new stuff this next year.

Oh, and for good measure I picked up one of these too:


THIS I'll be able to use for sure, but all this stuff adds up eh? Fortunately I'm old and there isn't anybody left to buy Christmas presents for, so there's that. Oh yea! I have to get something cool for myself closer to Christmas too! My poor wallet.

[bitseeker]

Nice Thanksgiving presents, vinito! Yes, they do add up, but don't worry, there's plenty more goodies to get. You'll see as you hang around here.

[med6753]

Help!!!    I am an ignorant rookie and may or may not even use this stuff much, though my interest and free time are both increasing so hope to learn a bunch of new stuff this next year.

THIS I'll be able to use for sure, but all this stuff adds up eh? Fortunately I'm old and there isn't anybody left to buy Christmas presents for, so there's that. Oh yea! I have to get something cool for myself closer to Christmas too! My poor wallet.

You obviously need help with your new found addiction. Visit this thread and you'll be buying even more.....

https://www.eevblog.com/forum/testgear/test-equipment-anonymous-(tea)-group-therapy-thread/

[Bud]

A pair of 1GHz vacuum rectifiers for a restoration project. $1 for two 

[TheSteve]

A pair of 1GHz vacuum rectifiers for a restoration project. $1 for two 

Now that is a price that's hard to argue with.

[gamalot]

I got my Keithley 182 nanovoltmeter with a display fault. The cause of the fault was the +60V voltage generation circuit. I had some 34063 at hand so made a step-up converter.