PS Engineering certified PM3000 4-place stereo intercom

Description

We bought this refurbished unit from Mendellsohn's years ago but before getting around to fitting it the 8.33kHz radio requirement came in so we ended up fitting a new radio whose built-in intercom capability was good enough for our needs, so this has sat in the box ever since. Details for fitting and using the device at https://www.ps-engineering.com/PM3000.html - hardcopies of the manuals are included, see photos.
Apologies for the sideways image - the uploaded original is the correct orientation but afors has decided it wants to rotate it.