EEVblog® Electronics Community Forum
Electronics => Beginners => Topic started by: _EDMAR_ on January 04, 2024, 07:14:53 pm
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I inherited my late-father's electronic parts and tools.
Where should I post questions about stuff like this old IC chip? SC1633 310-23 (M 035, I'm assuming this is a Motorola chip)
Or this old POTs lamp.
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Chip seems to be Motorola Special Custom ECL.
Regular 33 is dual RS flip-flop.
(was based on MECL II)
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Thank you.
Btw.... have you seen where any identitfy components areas here?
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Motorola created Onsemi in 1999 as a spin off semiconductor manufacturer so I imagine that some older obsolete devices may not have any data sheets available prior to the change to Motorola's company model. If someone has a Motorola catalogue dating before 1999, that number may have a reference to what it is.
As a side note, the Ceramic Flat Pack is still available to this day. So seeing a microchip with long wire leads won't necessarily indicate vintage. For example, Texas Instruments W, NDA HKK packages are still active. These would be used in extremely high vibration and/or extremely high inertia environments. Not generally used in automotive or consumer products but more for aerospace and military applications.
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Motorola parts beginning with "SC" are custom. They may or may not be similar to an existing non-SC part.
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Yup.
Thank you.
Btw.... have you seen where any identitfy components areas here?
This style is just fine.
I think somewhere was a pinned thread for these but can't fin it anymore.
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I inherited my late-father's electronic parts and tools.
Where should I post questions about stuff like this old IC chip? SC1633 310-23 (M 035, I'm assuming this is a Motorola chip)
Or this old POTs lamp.
The lamp is either a "Lilliput lamp" if it is very small, with a envelope diameter similar to an older style LED, or if is somewhat larger, it is a "switchboard lamp".
Unfortunately, in the job where I used the latter type, we had thousands of them in the Supply Branch, & the only other name for them was an internal one.
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I'm a 3rd gen Marine. My father retired a retired Gysgt, was attached to the AirWing He specialised in radar development & deployment.
He was a hidden hero, that his "modifications" saved many, many American lives.
Some parts (a few) were made to his specs, and not much info is found. His notes are all but lost.
So...I thank you very much as the info is helping fitting all his puzzle pieces together!!!