What is dolby system type a model 361?
The Dolby 361 is a rack mounted control unit that houses 1 Dolby
'A' or 'SR' noise reduction card, and allows automatic switching
between the Dolby card's playback and record modes via command
voltages given by most any professional tape recorder. The audio
interface is via XLR inputs and outputs, and is connected to and
from the tape recorder to be used.