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YES, replacing them with SMD modules would work well. However, there are a couple of connections that I am trying to understand what they are for, and that is why I am trying to locate the pinouts or data sheets. These devices are located on 3 separate PC Boards, so redesigning them, although...

Yes, I have a working circuit with schematics. I have determined some of the circuitry based on the limited information available, but I still have questions on some connections. Ultimately, I want to be able to replace these components in the future with available parts, if/when there is a...

I recommend that your fiancee obtain a BSEE degree. There are many individuals with a BSEET that are excellent Engineers, but this degree is just not recognized by all companies as that of a true Electrical Engineer. The pay for many BSEET Engineers may not be equal to one with a BSEE...

I am looking for the data sheets and/or description of the pinouts for the following Teledyne Semiconductor digital devices (late 60's to early 70's vintage): 312CJ ; 321CJ ; 342CJ Note: I have previously searched many sources including www.freetradezone with no success. If you...

Thanks Steve for your input. YES, Freetradezone was the first site that I tried, but no data sheets for these devices existed. I have searched many websites for this information. I need someone to point me to a website that definitely has this information, and has previously checked it out...

Thanks jbartos for your input. I have searched the old catalogs, and various product substitute pages and run web searches. At galco.com the data sheets are not available. There is no information on these devices on the teledynewireless site. Teledyne Semiconductor was changed to Telcom...

I am looking for the data sheets and/or description of the pinouts for the following Teledyne Semiconductor digital devices (late 60's to early 70's vintage): 312CJ 321CJ 342CJ