Jun-20-2017, 02:08 PM
Being a proud alumnus of the National Radio Institute (circa 1973), a Correspondence School* with a very long history, I thought I'd search online and see if it was still around and if so, what it was up to. During that search, I came across a .pdf file of one of their later projects, it seems around 1979, for students to build. Sadly, I was unaware of this class until, well, yesterday. It would have been a blast to build. Unfortunately, this doesn't contain the actual schematic, but it does give an in depth description of operation. I don't want to spoil the surprise by telling you exactly what it is, but I'm sure you old timers and maybe even you new timers will chuckle, as I did at where we were 40+ years ago.
Here you go:
Remember When
* For you young folks out there, before the internet, if you were unable to attend or afford a brick and mortar college, you had "Correspondence Schools" which allowed you to continue your education. This involved the school mailing you your lesson, with a test and you in turn mailing back your answers to the exam. If you passed, they would mail the next lesson and test. If you didn't pass you were notified, given a new test and you submitted your new answers. A somewhat time consuming process.
EDIT:
Found a site that includes the Product Description (above link), the construction manual and the schematics here:Complete documentation
Here you go:
Remember When
* For you young folks out there, before the internet, if you were unable to attend or afford a brick and mortar college, you had "Correspondence Schools" which allowed you to continue your education. This involved the school mailing you your lesson, with a test and you in turn mailing back your answers to the exam. If you passed, they would mail the next lesson and test. If you didn't pass you were notified, given a new test and you submitted your new answers. A somewhat time consuming process.
EDIT:
Found a site that includes the Product Description (above link), the construction manual and the schematics here:Complete documentation