Obsolete Standards
Overview
Electronic, and especially electrical, engineering have a long history: and during that time different standards have been in use. Once a body introduces a standard, it is remarkably hard to withdraw it from common use. And even if a standard is withdrawn, older documentation and technical writing still exists and remains useful.
You should not therefore use the standards in this section for new projects. However they remain here as a guide, and translation, between previously common standard and those you should now be using.