This is an opportunity to own a new old stock Altec Lansing 1783 line output module.  It is new in the box and only removed for the photo.  This piece provides the drive capability necessary to interface with other professional equipment.  The electronically balanced output stage provides a low source impedance to drive subsequent stages.  If transformer isolation is needed, the module's circuit board accommodates the optional PC-mount 1786 output isolation transformer.  The continuously variable output level control is local to the module permitting independent adjustment of each line output.  These were used in various amplifiers, preamplifiers, and mixers including the 1700C.  You can find the specs on this line output module at:  http://starin.info/Product%20Info/Bosch%20-%20EV/Archive/Altec/1700C.pdf

    Please email me with any questions.  I used a high resolution camera to give you accurate pictures of its condition.  I have years of experience packaging delicate electronics, so rest assured, this will be packaged very well.  I also use high quality packaging materials.  Also, please check out the other items in my store.  Thank you for looking and God bless!