Proceed CD Library

@tonyaudio 

https://en.wikipedia.org/wiki/List_of_battery_sizes#/media/File:Batteries_comparison_4,5_D_C_AA_AAA_...

Do you know the voltage?

Maybe there’s someone still at Lyric HiFi that can help you or inquire within Lexicon for the answer. Didn’t the Lexicon line under Harmon International take over Madrigal when they closed the doors? The original owners of Proceed were the Lyric owners I believe. You probably will not have any luck contactIng Harmon or Lexicon but Lyric might or if they have a service department they might have the service manuals.

https://www.lyricusa.com/

212-439-1900

tonyaudio

Consult Pyramid Audio in Austin, Texas. This is an authorized service center for Madrigal/Proceed.  Hope this information is helpful.

Happy Listening!

The Harmon group told me that the only info they have about the batteries are as follows:
4.85V 1/2C Cell Array Battery

Does this make sense to anyone?

Pyramid Audio in Austin, Texas told me to call Battery Plus which tried but could not help also. Both places were very nice to me though.