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+--- Thread: Digital microscope fun (/thread-2036.html)
Digital microscope fun - Geoff Quickfall - 08-29-2014 09:23 PM
bought digital usb microscope in Beijing last year and forgot about it. well out it comes (15 dollars) and I hooked it up today.
found out that not all 19Cs are created equal. I have two here, one with an attempt at a repair and the other fully working after repair.
only one has the HP logo in the decimal place and here it is. the grey background is the shaped LED. The hp is not part of the led.
![[Image: hp19C19clogodecimal_zps97b2000b.jpg]](http://i45.photobucket.com/albums/f96/geoff_q/hp19C19clogodecimal_zps97b2000b.jpg)
![[Image: hp19C19clogodecimal2_zpsf9d0f3d3.jpg]](http://i45.photobucket.com/albums/f96/geoff_q/hp19C19clogodecimal2_zpsf9d0f3d3.jpg)
RE: Digital microscope fun - Mark Hardman - 08-29-2014 09:47 PM
(08-29-2014 09:23 PM)Geoff Quickfall Wrote: not all 19Cs are created equal.
Not to steal Katie's thunder, but she's been using the HP19C's decimal point as her avatar since the inception of the new forum software.
![[Image: avatar_7.jpg?dateline=1388260898]](http://www.hpmuseum.org/forum/uploads/avatars/avatar_7.jpg?dateline=1388260898){kind=avatar}
RE: Digital microscope fun - Geoff Quickfall - 08-29-2014 09:56 PM
I know ;-) and I have been trying to photo the hp logo since. This post is just an exercise to see what a cheap 15 dollar usb digital scope can do:
here are some more of HP 01 trace damage and an HP 01 led segment:
now we know why this corroded HP 01 movement does not work!
![[Image: badcircuit1_zpsba8a9e02.jpg]](http://i45.photobucket.com/albums/f96/geoff_q/digital%20microscope/badcircuit1_zpsba8a9e02.jpg)
![[Image: badcircuit2_zpsd175a86b.jpg]](http://i45.photobucket.com/albums/f96/geoff_q/digital%20microscope/badcircuit2_zpsd175a86b.jpg)
compare the above to the following working module:
![[Image: goodcircuit1_zps00d3c5f9.jpg]](http://i45.photobucket.com/albums/f96/geoff_q/digital%20microscope/goodcircuit1_zps00d3c5f9.jpg)
![[Image: goodcircuit2_zpsdd6c83cd.jpg]](http://i45.photobucket.com/albums/f96/geoff_q/digital%20microscope/goodcircuit2_zpsdd6c83cd.jpg)
![[Image: hp01led_zpsd552eeae.jpg]](http://[/img]and now I can see how the wire bonds are doing![img]http://i45.photobucket.com/albums/f96/geoff_q/digital%20microscope/hp01led_zpsd552eeae.jpg)
RE: Digital microscope fun - Thomas Klemm - 08-29-2014 11:13 PM
(08-29-2014 09:47 PM)Mark Hardman Wrote: Not to steal Katie's thunder, but she's been using the HP19C's decimal point as her avatar since the inception of the new forum software.
She used Milo in the beginning.
Cheers
Thomas
RE: Digital microscope fun, finally the 19c - Geoff Quickfall - 08-29-2014 11:54 PM
![[Image: hp19cHPdecimal_zps52644633.jpg]](http://i45.photobucket.com/albums/f96/geoff_q/hp19cHPdecimal_zps52644633.jpg)
RE: Digital microscope fun - Katie Wasserman - 08-30-2014 02:42 AM
Nice pic!
I wonder why HP didn't make all their LED displays with their logo as the decimal point it was a really nifty idea.
RE: Digital microscope fun - Katie Wasserman - 08-30-2014 02:45 AM
(08-29-2014 11:13 PM)Thomas Klemm Wrote: She used Milo in the beginning.
Cheers
Thomas
I'm sure that Milo appreciates the acknowledgement (as he looks down from doggie heaven).
RE: Digital microscope fun - Geoff Quickfall - 08-30-2014 03:30 AM
(08-30-2014 02:42 AM)Katie Wasserman Wrote: I wonder why HP didn't make all their LED displays with their logo as the decimal point it was a really nifty idea.
well I saw your pic so I had to see if I could reproduce it. milo is sure cute, Tessa is still with us:
![[Image: IMG_0224_zpscfe7ac56.jpg]](http://i45.photobucket.com/albums/f96/geoff_q/IMG_0224_zpscfe7ac56.jpg)