These telephones have been modified from NOS telephones made in the U.S. in 1986 by ITT/Cortelco for the military.



There are only 1 more of these telephones left, there will not be more of this type.



All telephones have been sealed in foil pouches prior to modifications.



All hardware is NOS industrial/mil. spec. grade for superior reliability. Output jack is made by Amphenol. Potentiometer is made by Bourns. Knob is made by Raytheon.



Modifications:



1. Filter Knob-low pass/treble cut filter adjustment, also helps to eliminate high band feedback (see clip)



2. 1/4" Output Jack-connect to PA, amplifier, etc.



The video/audio is of a previous run of telephone microphones I did, it demonstrates what this model will sound like. During the short clip the filter knob is being adjusted.



As with all passive telephone receiver mics that are made (by myself and others), please note that the mic element is in the earpiece.



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