Trying to put together a 4a speakerphone setup for my 2565 phone set, but am missing the critical 82-type connection block.

I think I have all the other components; for the speaker, a Precision Components 108B, a 680 transmitter, and an 85B1 wall wart.

I take it these 82a/b/c connection blocks are rare beasts.

So a few questions:

  • Are these 82-type blocks available at phone shows?
  • If these are truly rare items, I could probably make an 82b circuit board.. might this be useful to others?


I looked over the 82b schematic in BSP 512-700-100 (4a speakerphone), and spent a few days laying out a small circuit board that might do the same thing:

[Linked Image from seriss.com]

In this board, I'm using a set of jumpers to replace the rotatable amphenol "option block", as that'd be hard to make. And there's some extra slots needed in the male amphenol to accept the unusual slotted split-female amphenols on the speakerphone devices.