What did you buy today? Post your latest purchase!

[Housedad]

I drool for a Simpson meter.   Nice find and thank God those batteries did not leak.    Before those Energizers, almost everyone's batteries ended up leaking if left to discharge, both carbon and alkaline types.  Newer electrolytes and superior seals put Energizers on the map. In the 60's, 70's, and 80's, Radio Shack used to give customers a card for the "battery of the month club" that you could get punched each month and get free the crappiest carbon battery they could make.  I swear I think they gave them away knowing that the batteries would leak quickly and destroy whatever they were in and the customer would have to come back and buy another.   

Again, NICE find on the meter.

[mmagin]

Cost me $20 because it's a 255 instead of the 260 that everyone knows.  For my purposes it lacks the higher DC current range, but otherwise is just as good.

[BFX]

I won some test rig for my Agilent RLC for 113EUR


And some HF stuff:)

[Housedad]

Here is a picture of the insides of the isolation transformer.

I'll made a short teardown thread about it too.

https://www.eevblog.com/forum/testgear/toroid-isb060w-isolation-transformer-modifications-how-to/msg1194021/#msg1194021

[HighVoltage]

Here is a picture of the insides of the isolation transformer.

Thanks, looks straight forward, nothing special about "medical" insulation.

[Housedad]

The medical aspect of the isolator is in the coil itself and that the housing and outlets meet requirements for devices in patient rooms.  The medical coil has additional isolation for capacitance and resistance to reduce leakage currents to levels specified by the NEC for medical grade devices. Not a huge difference, but still a difference.  The only advantage that I can see for us using a medical grade on our bench is that the units are usually of high quality in excellent condition, and hospitals routinely upgrade, putting all their old equipment on the market at affordable prices. 

[plazma]

DPS5015 PSU module and an aluminum case.

Looks good.
Where did you buy this aluminum case?
What dimensions?

I bought it from eBay. Size is 150*105*55mm.
http://www.ebay.com/itm/131813738627

There is now a similar original case:
https://www.banggood.com/RD-DP-And-DPS-Power-Supply-Housing-2-Kinds-Aluminum-Housing-Constant-Voltage-Current-Casing-p-1146253.html

[gamalot]

Please could anyone tell me what's the name of these wafers?

I've used them to renew my Keithley 2001's keyboard, but I've no idea how your guys call it in English. 

[tautech]

Please could anyone tell me what's the name of these wafers?

I've used them to renew my Keithley 2001's keyboard, but I've no idea how your guys call it in English. 

Yep but not me. PM SeanB, he knows them and IIRC posted all about them in a thread a couple of years back.
That much I remember but not what they're called. 

[gamalot]

Please could anyone tell me what's the name of these wafers?

I've used them to renew my Keithley 2001's keyboard, but I've no idea how your guys call it in English. 

Yep but not me. PM SeanB, he knows them and IIRC posted all about them in a thread a couple of years back.
That much I remember but not what they're called. 

Actually, it doesn't bother me if I don't try to tell you what did I buy today. I bought them on Taobao, and my native language is Chinese. 

[tautech]

Please could anyone tell me what's the name of these wafers?

I've used them to renew my Keithley 2001's keyboard, but I've no idea how your guys call it in English. 

Yep but not me. PM SeanB, he knows them and IIRC posted all about them in a thread a couple of years back.
That much I remember but not what they're called. 

Actually, it doesn't bother me if I don't try to tell you what did I buy today. I bought them on Taobao, and my native language is Chinese. 

Let's make a name....keyboard membrane conductive repair buttons. 

[gamalot]

Please could anyone tell me what's the name of these wafers?

I've used them to renew my Keithley 2001's keyboard, but I've no idea how your guys call it in English. 

Yep but not me. PM SeanB, he knows them and IIRC posted all about them in a thread a couple of years back.
That much I remember but not what they're called. 

Actually, it doesn't bother me if I don't try to tell you what did I buy today. I bought them on Taobao, and my native language is Chinese. 

Let's make a name....keyboard membrane conductive repair buttons. 

I could try a word for word translation - Conductive rubber keyboard particles. 

[tautech]

Please could anyone tell me what's the name of these wafers?

I've used them to renew my Keithley 2001's keyboard, but I've no idea how your guys call it in English. 

Yep but not me. PM SeanB, he knows them and IIRC posted all about them in a thread a couple of years back.
That much I remember but not what they're called. 

Actually, it doesn't bother me if I don't try to tell you what did I buy today. I bought them on Taobao, and my native language is Chinese. 

Let's make a name....keyboard membrane conductive repair buttons. 

I could try a word for word translation - Conductive rubber keyboard particles. 

Conductive rubber keyboard particles pads. 

Conductive rubber keyboard keypad membrane repair pads. 

[daveyk]

I didn't know you could get those. I have a tds380 scope I had to take apart. I cleaned those carbon studs until I got black on the swab sticks. The keypad seems to work fine now.  Where did you get those at?


Sent from my iPhone using Tapatalk

[daveyk]

Please could anyone tell me what's the name of these wafers?

I've used them to renew my Keithley 2001's keyboard, but I've no idea how your guys call it in English. 

Keypad repair rubber buttons KIT for TV video or audio Infrared remote controls https://www.amazon.com/dp/B06ZYLRPGN/ref=cm_sw_r_cp_api_POFazbZ6MTT2W


Sent from my iPhone using Tapatalk

[xrunner]

or here -

http://www.ebay.com/itm/rubber-key-pad-repair-KIT-200-pcs-of-2mm-diameter-conductive-rubber-pads-/222163453885?hash=item33b9f947bd:g:-BMAAOSwM4xXa8jG

But ... if you only want to fix a few I've done it before by using that aluminum tape used for duct work. Just punch out a few circles using a small paper punch and stick 'em on. Works perfectly. 

[gamalot]

Please could anyone tell me what's the name of these wafers?

I've used them to renew my Keithley 2001's keyboard, but I've no idea how your guys call it in English. 

Yep but not me. PM SeanB, he knows them and IIRC posted all about them in a thread a couple of years back.
That much I remember but not what they're called. 

Actually, it doesn't bother me if I don't try to tell you what did I buy today. I bought them on Taobao, and my native language is Chinese. 

Let's make a name....keyboard membrane conductive repair buttons. 

I could try a word for word translation - Conductive rubber keyboard particles. 

Conductive rubber keyboard particles pads. 

Conductive rubber keyboard keypad membrane repair pads. 

Thanks for the correction.

I didn't know you could get those. I have a tds380 scope I had to take apart. I cleaned those carbon studs until I got black on the swab sticks. The keypad seems to work fine now.  Where did you get those at?

Sent from my iPhone using Tapatalk

I bought them on Taobao, in 7 different size from 2.5 mm to 6 mm, 100 pcs for each size.

The seller is very generous, I did not carefully count, but I guess each package contains at least 200 or more. 

[McBryce]

I usually just "borrow" those pads from old TV remote controls, using a box cutter (exacto-knife to our American friends) to remove them.

McBryce.

[Johnny10]

Tektronix 4041 and TM5003 Combo

[canibalimao]

Pulseview should support it. Just look around here:

https://sigrok.org/wiki/Supported_hardware#Logic_analyzers

or ask Sigrok. They are very responsive.

Thank you very much! I'll give that a try!

I've received today my 4.50€ logic analyzer. It is detected by sigrok (at least it doesn't show any error), so I think this is a winner. "Only" 8 channels but it should be enought 

[Kilrah]

4030 Chinese CNC with 1.5kW spindle and 4th axis.

Been wanting to get into this for years, now is the time

[DTJ]

4030 Chinese CNC with 1.5kW spindle and 4th axis.

Been wanting to get into this for years, now is the time

VERY envious.
You must post up some pics and video.

Was it expensive?

[rdl]

That looks like a nice CNC machine.

I see some similar models advertised on ebay as being 4 axis and was wondering how that would work. Does it allow you to go back in time to fix mistakes?

[plazma]

It's axis. Not dimensions. Normally there are x, y and z axis. You can also add rotating holders (more axis) so you can machine more complex parts.

[mmagin]

Just bought a manual from Artek (the scans I found freely available are horrible) for the HP 3312A function generator.  I got it recently cheap in not-quite-working condition because I wanted something I can use for sweeping old radio IFs.  I decided to avoid an antique electromechanically (60hz) swept signal generator
Although I suspect that most of the problem is dirty switches.


My HP 8644B is a wonderful signal generator but sucks for sweeping typical IF bandwidths.  (Slow, and the phase-continuous sweep ranges are too narrow in some cases.  The phase-discontinuous sweeping is useless with the typical XY scope setup.)