diff --git a/build/h3text.2016 b/build/h3text.2016
index 572eafca..f5944c69 100644
--- a/build/h3text.2016
+++ b/build/h3text.2016
@@ -130,7 +130,7 @@ HOST : 10.3.0.54 : MC.MIT.EDU, MIT-MC, MC : PDP-10 : ITS : :
 
 ;;; DistriBution ITS and generic KA
 HOST : %CHAOS%%IP% : %HOSTNAME%, DB, KA, KL : PDP-10 : ITS : :
-
+;; Hactrn public ITS.
 HOST : 205.166.94.7 : HACTRN.ORG, HX : PDP-10 : ITS : :
 
 ;;; Global ITS and Lispm network
diff --git a/build/mchn/HX/boot b/build/mchn/HX/boot
new file mode 100644
index 00000000..1de6eeed
--- /dev/null
+++ b/build/mchn/HX/boot
@@ -0,0 +1,30 @@
+set console wru=034
+set cpu its
+set cpu 1024k
+set cpu mpx
+set rpa dis
+set rpb dis
+set tua dis
+set fha dis
+set dpb dis
+set lpt dis
+set cr dis
+set dc disable
+set dtc dis
+set dk dis
+set pd ena
+set pd on
+at ptr out/pdp10-ka/dskdmp.rim
+at mta0 out/pdp10-ka/sources.tape
+set mta mpx=7
+set mta type=b
+at dpa0 out/pdp10-ka/rp03.2
+at dpa1 out/pdp10-ka/rp03.3
+at dpa2 out/pdp10-ka/rp03.0
+at dpa3 out/pdp10-ka/rp03.1
+at dpa4 out/pdp10-ka/rp03.4
+at dpa5 out/pdp10-ka/rp03.5
+at dpa6 out/pdp10-ka/rp03.6
+at dpa7 out/pdp10-ka/rp03.7
+set dpa noheaders
+b ptr
diff --git a/build/mchn/HX/init b/build/mchn/HX/init
new file mode 100644
index 00000000..449e4672
--- /dev/null
+++ b/build/mchn/HX/init
@@ -0,0 +1,25 @@
+set console wru=034
+set cpu its
+set cpu 512k
+set rpa dis
+set rpb dis
+set tua dis
+set fha dis
+set dpb dis
+set lpt dis
+set cr dis
+set dc disable
+set dtc dis
+set dk dis
+at mta0 out/pdp10-ka/magdmp2.tap
+at mta5 out/pdp10-ka/reboot.tape
+at dpa0 out/pdp10-ka/rp03.2
+at dpa1 out/pdp10-ka/rp03.3
+at dpa2 out/pdp10-ka/rp03.0
+at dpa3 out/pdp10-ka/rp03.1
+at dpa4 out/pdp10-ka/rp03.4
+at dpa5 out/pdp10-ka/rp03.5
+at dpa6 out/pdp10-ka/rp03.6
+at dpa7 out/pdp10-ka/rp03.7
+set dpa headers
+b mta0
diff --git a/build/mchn/HX/mchn.tcl b/build/mchn/HX/mchn.tcl
new file mode 100644
index 00000000..c10b92c8
--- /dev/null
+++ b/build/mchn/HX/mchn.tcl
@@ -0,0 +1,30 @@
+proc dskdmp_switches {hriflg} {
+    expect "Configuration"
+    respond "?" "ASK\r"
+    respond "HRIFLG=" "$hriflg\r"
+    respond "BOOTSW=" "N\r"
+    respond "R11R6P=" "N\r"
+    respond "R11R7P=" "N\r"
+    respond "RM03P=" "N\r"
+    respond "RM80P=" "N\r"
+    respond "RH10P=" "N\r"
+    respond "DC10P=" "N\r"
+    respond "NUDSL=" "500.\r"
+    respond "KS10P=" "N\r"
+    respond "KL10P=" "N\r"
+}
+
+proc peek_switches {} {
+    respond "with ^C" "340P==0\r\003"
+}
+
+proc mark_packs {} {
+    mark_pack "0" "2" "2"
+    mark_pack "1" "3" "3"
+    mark_pack "2" "0" "0"
+    mark_pack "3" "1" "1"
+    mark_pack "4" "4" "4"
+    mark_pack "5" "5" "5"
+    mark_pack "6" "6" "6"
+    mark_pack "7" "7" "7"
+}
diff --git a/build/mchn/HX/run b/build/mchn/HX/run
new file mode 100644
index 00000000..be2258d2
--- /dev/null
+++ b/build/mchn/HX/run
@@ -0,0 +1,56 @@
+set console wru=034
+set cpu its
+set cpu 1024k
+set cpu idle
+set cpu mpx
+set rpa dis
+set rpb dis
+set tua dis
+set fha dis
+set dpb dis
+set lpt dis
+set cr dis
+set dc disable
+set dtc dis
+set dk dis
+set pd enabled
+set pd on
+set dk disabled
+set stk enabled
+set tk enabled
+at tk 10000 speed=300
+# 10001 reserved for GE bagbiters, hah.
+set dpk enabled
+at dpk 10002 speed=4800
+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=9,10018 speed=9600
+at mty line=8,10017 speed=9600
+at mty line=7,10016;notelnet speed=50000
+set ten11 enabled
+at ten11 10011
+set auxcpu enabled
+at auxcpu 10006
+set imp enabled
+set imp mac=e2:6c:84:1d:34:a3
+set imp ip=192.168.2.101/24
+set imp gw=172.31.1.100
+set imp host=10.3.0.6
+at imp tap:tap0
+at ptr out/pdp10-ka/dskdmp.rim
+at dpa0 out/pdp10-ka/rp03.2
+at dpa1 out/pdp10-ka/rp03.3
+at dpa2 out/pdp10-ka/rp03.0
+at dpa3 out/pdp10-ka/rp03.1
+at dpa4 out/pdp10-ka/rp03.4
+at dpa5 out/pdp10-ka/rp03.5
+at dpa6 out/pdp10-ka/rp03.6
+at dpa7 out/pdp10-ka/rp03.7
+set mta mpx=7
+set mta type=b
+set dt mpx=6
+set imp mpx=4
+set dpa noheaders
+b ptr
diff --git a/build/pdp10-ka/config.202 b/build/pdp10-ka/config.202
index 75f74c73..09a768ff 100644
--- a/build/pdp10-ka/config.202
+++ b/build/pdp10-ka/config.202
@@ -374,9 +374,9 @@ DEFOPT PAGPRE==1	; Page-in preemption
 DEFOPT SCHBLN==10.	;NUMBER OF RUNNABLE JOBS TO REMEMBER
 
 DEFOPT NQCHN==30.	;NUMBER 2314 CHNLS
-DEFOPT NQS==4		;# DISK UNITS
+DEFOPT NQS==8		;# DISK UNITS
 DEFOPT NTUTBL==1	;TUTS ARE ONE BLOCK LONG
-DEFSYM NUDSL==250.	;# USER DIRECTORIES ON DISK
+DEFSYM NUDSL==500.	;# USER DIRECTORIES ON DISK
 DEFOPT RP10P==1		;HAS DEC RP10 DISK CONTROL (RP02)
 DEFOPT QRDCMP==1	;SOFTWARE READ-COMPARE
 DEFOPT DMDSK==1		;USES DM DISK FORMAT
diff --git a/src/system/salv.317 b/src/system/salv.317
index aaef880a..4252527e 100644
--- a/src/system/salv.317
+++ b/src/system/salv.317
@@ -130,8 +130,8 @@ PRINTX /Which machine? /
 	];KA
  IFCE MCHN,HX,[
 	FIRSPK==0
-	LASTPK==3
-	NUDSL==250.
+	LASTPK==7
+	NUDSL==500.
 	DC10P==0
 	RP10P==1
 	RH10P==0
@@ -142,7 +142,7 @@ PRINTX /Which machine? /
 	TTLPTP==0
 	TCMXH==55.
 	LIGHTS==4	;PI
-	];KA
+	];HX
  IFCE MCHN,DM,[
 	FIRSPK==17.
 	LASTPK==21.