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31
Repair / Re: Uneven VFD Vacuum Fluorescent Display
« Last post by GaFord on Today at 07:35:23 am »
Thanks, I will look for that thread. 
32
General Chat / Re: FranLab is getting evicted
« Last post by KL27x on Today at 07:34:56 am »
Quote
I have met people that went through this, with the strategically falling debris or the inadvertent blown water or sewage pipe invading the shop (hard to know the real intentions).
In Chicago, they used to just hire crackheads to break into your place to "burglarize" it every 3 weeks until you leave.

If I had nothing better to do, 9 months left on my lease, and no buyout offer, I might consider buying every type of insurance to cover any theft or incidental damage and maybe come out on top, lol. If your lease is costing the owner hundreds of thousands of dollars, they could at least make a decent offer for a buyout. 
33
Has the quadrature product/sampling detector appeared in any commercial applications aside from amateur radio products?

I don't believe anyone has integrated the device, meaning integrating the clock, bus switch, integrating capacitors, op amps, etc. into a single device.  I'd be interested in learning otherwise.
34
General Chat / Strange reaction between cable and plastic box
« Last post by ferdieCX on Today at 07:34:06 am »
Hi, I am a little surprised:

About 8 years ago, I bought one of those cheap packs with 10 double alligator test leads.
I have not used most of them in the last months and yesterday I wanted to take them out of the small yellow box in the drawer.
To my surprise, they tended to remain like glued to the box. The cables have somehow reacted with the plastic material of the box affecting it, as you can see in the pictures.
The other boxes in the drawer doesn't seem to be affected.
Both the yellow box and the cables where bought in Germany.

Has something like that happened to anyone of you ?
35
Test Equipment / Re: $20 LCR ESR Transistor checker project
« Last post by Andbro on Today at 07:30:58 am »
Hi,

I want to programming my ESR with USBASP and AVRDUDE.
What is the right fuses ?

Thanks
36
Hmmmm I might try my hand at making a nice open source linear drop in power supply module circuit board.
37
Test Equipment / Re: Test Equipment Anonymous (TEA) group therapy thread
« Last post by Cerebus on Today at 07:30:05 am »
...
Was how shall we say "maximum overkill". Glass was found 200m away and the explosion...

"MAXIM 37: There is no 'overkill.' There is only 'open fire' and 'reload.'"
38
General Chat / Re: FranLab is getting evicted
« Last post by ebastler on Today at 07:29:29 am »
I've known multiple people though who clean their house by piling stuff in a storage unit with no long term plan. Then pretty soon there's so much stuff in the storage unit that they don't know what's there and can't easily access most of it.

And then, once you have convinced yourself that you don't even remember what's there, and that you have never accessed anything over the past 5 years, chuck it all out! ;) 

Doesn't sound like the worst of plans to me; it takes some pain out of the decision-making process...
39
External heat over the thermal runaway onset temperature - around 150 degC - would be the best bet, since the modern shutdown separators seem to work so well that even a nail penetration is not setting these things on fire anymore.

Warning: this is not to say you should abuse the cells in any way. They can catch fire because the inherent chemistry is still very volatile - it's just got safety layers built around it -, and abusing them will of course increase the risk as it puts more burden on the safety features that are not "normally" needed. It's just that it doesn't tend to usually happen, because the safety features are well designed.

Thanks for your efforts to describe issues with LiPO's BMS etc, most interesting, but i wonder when in time did
LI cells get this protection from nail penetration ,overheat regulation , shutdown separation, etc? Just recently? is there
a definitive date to it so one can distinguish old from new tech?
40
ethernet is so easy,   

Ethernet is not multimaster.

IMO, if you have work to do and get done, CAN. If you have more time to tinker or need a specific chip / lower cost, RS485.

There are issues with CAN specifically that you should be using it in a cyclic mode where each module has it's own address or range. This becomes an issue when you have lots of modules programmed identically and need to negotiate their own IDs at boot.
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