diff --git a/build/pdp10-ka/run b/build/pdp10-ka/run
index 0ee732b4..f752ba16 100644
--- a/build/pdp10-ka/run
+++ b/build/pdp10-ka/run
@@ -27,8 +27,8 @@ at dpk line=11,10019 speed=4800
 at dpk line=15,10020 speed=4800
 set mty enabled
 at mty 10003 speed=50000
-at mty line=15,10018 speed=9600
-at mty line=14,10017 speed=9600
+at mty line=9,10018 speed=9600
+at mty line=8,10017 speed=9600
 set ten11 enabled
 at ten11 10011
 set auxcpu enabled
diff --git a/src/system/ttytyp.321 b/src/system/ttytyp.321
index aa30b4c7..5e549cc3 100644
--- a/src/system/ttytyp.321
+++ b/src/system/ttytyp.321
@@ -191,14 +191,8 @@ MCONDX KA,{				;;; KA
 	TTDAAA 46,SPEED=50000		;T46 Morton port 6
 	TTDAAA 47,SPEED=50000		;T47 Morton port 7
 	TTDAAA 50,SPEED=50000		;T50 Morton port 8
-	TTDAAA 51,SPEED=50000		;T51 Morton port 9
-	TTDAAA 52,SPEED=50000		;T52 Morton port 10
-	TTDAAA 53,SPEED=50000		;T53 Morton port 11
-	TTDAAA 54,SPEED=50000		;T54 Morton port 12
-	TTDAAA 55,SPEED=50000		;T55 Morton port 13
-	TTDAAA 56,SPEED=50000		;T56 Morton port 14
-	TTDTEK 57,SPEED=9600		;T57 Tektronix, port 15
-	TTDVT 60,SPEED=9600		;T60 VT52, port 16
+	TTDTEK 51,SPEED=9600		;T51 Tektronix, port 9
+	TTDVT 52,SPEED=9600		;T52 VT52, port 10
 .ENDC ;}
 
 MCONDX EX,{				;;; EX