Bad TI IC sockets: Difference between revisions

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[[Image:Bad_ti_socket_top.jpg|thumb|400px|right|Bad TI IC Socket]]
'''Texas Instruments made some bad IC sockets''' back in late 1970's.  
 
The TI C-95 model of socket is known to be a problem.  
'''TI made some bad IC sockets''' back in late 1970's.
A typical high quality replacement would be a Mill-Max machined-pin DIP socket.   
They are easy to identify since they grip the IC pins along the edge of the pin and not the flat body of the pin.
A typical high quality replacement would be a Mill-Max machined pin DIP socket.   


DIP sockets are often problematic as instruments age.
DIP sockets are often problematic as instruments age.
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a transition to an improved version of the C93 socket design.
a transition to an improved version of the C93 socket design.


For the 14 pin DIP at the left, a gold part number would be mill-max 110-93-314-41-001000,
For the 14 pin DIP at the left, a gold part number would be Mill-Max 110-93-314-41-001000,
a non-RoHS lead-tin part number would be mill-max 110-99-314-41-001000.   
a non-RoHS lead-tin part number would be Mill-Max 110-99-314-41-001000.   
Both parts are non-RoHS since the solder-tail (PCB end) is also lead-tin plated.
Both parts are non-RoHS since the solder-tail (PCB end) is also lead-tin plated.


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problem for low current applications but it was death to any ECL circuits.
problem for low current applications but it was death to any ECL circuits.
Unfortunately ECL was used extensively in logic analyzers. There were very
Unfortunately ECL was used extensively in logic analyzers. There were very
high failure rates for the 7D01, DF1, and DF2 and eventually Tek had an
high failure rates for the [[7D01]], [[DF1|DF1 and DF2]], and eventually Tek had an
unpublicized board exchange program for those instruments. Service
unpublicized board exchange program for those instruments. Service
technicians could replace the boards but there was no official modification
technicians could replace the boards but there was no official modification
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</blockquote>
</blockquote>


==Links==
* [[Media:Tek_component_news_num_273_aug_24_1979.pdf|Tek Component News No.273 August 1979 – Page 7 – IC socket problem update]]
==Pictures==
<gallery>
<gallery>
C95 dip socket-1.jpg|maintenance note for [[7D01]], C93 to C95 to "new C93" change
C95 dip socket-1.jpg|maintenance note for [[7D01]], C93 to C95 to "new C93" change