This all passed me by at the time. Probably due to the distraction of babies, mortgage, new CD technology or even not particularly pushed in Australia.
The two technologies were the CX and dbx disc systems.
These links cover the basics:
https://www.philips.com/a-w/research/technologies/cd/black-giants.html
https://obsoletemedia.org/dbx-disc/
CX: https://www.americanradiohistory.com/Archive-Poptronics/80s/1982/Poptronics-1982-01.pdf
The discs are readily available on Ebay at affordable prices. The decoders are scarce. Not to worry though. In the Popular Electronics link, above, there is a DIY decoder project.
For deeper interest see here: http://www.jblproservice.com/pdf/Vintage JBL-UREI Electronics/UREI-1181.pdf
Some first-hand history: https://groupdiy.com/index.php?topic=67254.0;prev_next=next#new
Enjoy, discuss, build.
The two technologies were the CX and dbx disc systems.
These links cover the basics:
https://www.philips.com/a-w/research/technologies/cd/black-giants.html
https://obsoletemedia.org/dbx-disc/
CX: https://www.americanradiohistory.com/Archive-Poptronics/80s/1982/Poptronics-1982-01.pdf
The discs are readily available on Ebay at affordable prices. The decoders are scarce. Not to worry though. In the Popular Electronics link, above, there is a DIY decoder project.
For deeper interest see here: http://www.jblproservice.com/pdf/Vintage JBL-UREI Electronics/UREI-1181.pdf
Some first-hand history: https://groupdiy.com/index.php?topic=67254.0;prev_next=next#new
Enjoy, discuss, build.
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