HP 82168A Acoustic Coupler, HP41 books

[Sylvain Cote]

Hello Noelene,

(01-21-2017 11:21 PM)Noelene Wrote:  Thanks for adding me to this forum. My husband passed away recently, and I am sorting through his large collection of HP calculator equipment in order to sell it off.

Sorry for your loss.

(01-21-2017 11:21 PM)Noelene Wrote:  Secondly, I came across an 82168A Acoustic Coupler - it seems an unusual article, would it be valuable?

It is a communication device to be used with a telephone on the landline telephone system (POTS).
It was used to either transmit files or to remotely access a text terminal.

The following picture show a test setup that I had build two years ago.
HP-71B <-> HP-82168A Acoustic Coupler <-> a touch tone telephone <-> a phone line simulator <-> a touch tone telephone <-> HP-82168A Acoustic Coupler <-> HP-75C

Best regards,

Sylvain