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
Reply by Don Y●September 2, 20222022-09-02
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! :>
Reply by Phil Hobbs●August 31, 20222022-08-31
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.nethttp://hobbs-eo.com
Reply by Andrew Smallshaw●August 31, 20222022-08-31
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