Useful bonus feature

I'm just doing some rough prototyping at the minute and to save
squinting I put a identifying label on the MCU showing part no and
orientation, from one of those thermal Dymo-style labelling machines.
What I hadn't anticipated is the bonus feature - these are thermal
labels so of course give a visual indication when the magic smoke
gets let out.

http://andrews.freeshell.org/news/20220821.cae/MVIMG_20220831_172913.jpg


-- 
Andrew Smallshaw
andrews@sdf.org

Andrew Smallshaw wrote:
> I'm just doing some rough prototyping at the minute and to save
> squinting I put a identifying label on the MCU showing part no and
> orientation, from one of those thermal Dymo-style labelling machines.
> What I hadn't anticipated is the bonus feature - these are thermal
> labels so of course give a visual indication when the magic smoke
> gets let out.
> 
> http://andrews.freeshell.org/news/20220821.cae/MVIMG_20220831_172913.jpg
> 
> 
Nice.  One time long ago, I got snookered by a damaged prescaler in an 
8-pin DIP.  For recompense, I connected pins 1-4 to one side of a 120V 
mains plug, and pins 5-8  to the other.  Made a very satisfactory bang, 
and excavated a crater out of the epoxy.

Most soothing  to my irritated soul, and _that_ chip was not going to 
waste any more of my time.  (Pease talks about 'Widlarizing' in a 
similar vein.)

Cheers

Phil Hobbs

-- 
Dr Philip C D Hobbs
Principal Consultant
ElectroOptical Innovations LLC / Hobbs ElectroOptics
Optics, Electro-optics, Photonics, Analog Electronics
Briarcliff Manor NY 10510

http://electrooptical.net
http://hobbs-eo.com

On 8/31/2022 9:45 AM, Andrew Smallshaw wrote:
> I'm just doing some rough prototyping at the minute and to save
> squinting I put a identifying label on the MCU showing part no and
> orientation, from one of those thermal Dymo-style labelling machines.
> What I hadn't anticipated is the bonus feature - these are thermal
> labels so of course give a visual indication when the magic smoke
> gets let out.
> 
> http://andrews.freeshell.org/news/20220821.cae/MVIMG_20220831_172913.jpg

You need stronger adhesive and label material to PREVENT the smoke from
escaping!  :>

On Thu, 1 Sep 2022 23:26:21 -0700, Don Y <blockedofcourse@foo.invalid>
wrote:

>On 8/31/2022 9:45 AM, Andrew Smallshaw wrote:
>> I'm just doing some rough prototyping at the minute and to save
>> squinting I put a identifying label on the MCU showing part no and
>> orientation, from one of those thermal Dymo-style labelling machines.
>> What I hadn't anticipated is the bonus feature - these are thermal
>> labels so of course give a visual indication when the magic smoke
>> gets let out.
>> 
>> http://andrews.freeshell.org/news/20220821.cae/MVIMG_20220831_172913.jpg
>
>You need stronger adhesive and label material to PREVENT the smoke from
>escaping!  :>


Many of you may know this but many years ago, I found that windowed
Eproms can turn into a light if you plug them in wrong.  Very wrong :)

boB