DCAudioDIY.com

I thought this link would be of interest especially the advertisements -

https://www.worldradiohistory.com/Archi ... 55-May.pdf

My how things have changed. And if you want a piece of it there's this:

https://rasmus.com/auctions/TGMvLm2bNqo ... izcmshg2x8

OK, maybe the stuff is a little more recent.