Thread: Opinion on Heathkit Gr21 pair
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  #8  
Old 10-31-2010, 02:33 PM
RDusel RDusel is offline
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Join Date: Oct 2007
Posts: 121
The MPX decoder is built into the second channel box along with the amplifier, it takes an audio feed and MPX feed from the main radio.
When I get to these sets I'll post some pictures, they are going to be a winter project.
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