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'''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. | |||
''' | A typical high quality replacement would be a Mill-Max machined-pin DIP socket. | ||
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 | 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 | 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 | 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 |