{Collins} 75S-3B mute

Have one remaining item on restoration of a 75S-3B.  Have the original manual
and the schematic has pencil marks indicating that the mute line has been
disconnected from R67 (1200 ohm grid resistor V3A)  The end of R67 that was connected
to the mute line is now connected to ground.   Actual circuit reflects the change on the 
schematic.  Was wondering if anyone knows the reason for disconnecting the first mixer
form the mute line, receiver is operating beautiful......Herm  W2HPM

This archive was generated by a fusion of Pipermail (Mailman edition) and MHonArc.