12-07-2015, 08:31 PM
I've found the 'Philco Condensers and More' book by Ray Bintliff to be an invaluable reference. It covers much more than bakelite blocks, but I've gotten my copy smudged up pretty good since it's always open when I'm restuffing. 
The book is mentioned in the tech section:
http://www.philcoradio.com/tech/blocks.htm
It doesn't seem to be available on Amazon or Antique Electronic Supply currently. Maybe here?
http://www.antiqueradio4.com/Merchant2/m...ry_Code=BL

The book is mentioned in the tech section:
http://www.philcoradio.com/tech/blocks.htm
It doesn't seem to be available on Amazon or Antique Electronic Supply currently. Maybe here?
http://www.antiqueradio4.com/Merchant2/m...ry_Code=BL