diff --git a/src/spicelib/analysis/acan.c b/src/spicelib/analysis/acan.c
index 5aa942b77..89aeaf747 100644
--- a/src/spicelib/analysis/acan.c
+++ b/src/spicelib/analysis/acan.c
@@ -251,7 +251,7 @@ ACan(CKTcircuit *ckt, int restart)
         ckt->CKTomega = 2.0 * M_PI *freq;
 
         /* Update opertating point, if variable 'hertz' is given */
-        if (ckt->CKTvarHertz) {
+        if (0 && ckt->CKTvarHertz) {
 #ifdef XSPICE
             /* Call EVTop if event-driven instances exist */
 
diff --git a/src/spicelib/devices/asrc/asrcacld.c b/src/spicelib/devices/asrc/asrcacld.c
index 910f10064..017d65f81 100644
--- a/src/spicelib/devices/asrc/asrcacld.c
+++ b/src/spicelib/devices/asrc/asrcacld.c
@@ -24,7 +24,7 @@ ASRCacLoad(GENmodel *inModel, CKTcircuit *ckt)
     int i, j;
     double *derivs;
     double difference;
-    double factor;
+    double factor, rhs;
 
     NG_IGNORE(ckt);
 
@@ -47,7 +47,13 @@ ASRCacLoad(GENmodel *inModel, CKTcircuit *ckt)
              */
 
             j = 0;
-            derivs = here->ASRCacValues;
+
+            if (here->ASRCtree->IFeval(here->ASRCtree, ckt->CKTgmin, &rhs, here->ASRCopValues, asrc_derivs) != OK)
+                return(E_BADPARM);
+
+            derivs = asrc_derivs;
+
+            // mit factor multiplien !!
 
             if (here->ASRCtype == ASRC_VOLTAGE) {
 
diff --git a/src/spicelib/devices/asrc/asrcdefs.h b/src/spicelib/devices/asrc/asrcdefs.h
index 93bdef553..ef0bcf7de 100644
--- a/src/spicelib/devices/asrc/asrcdefs.h
+++ b/src/spicelib/devices/asrc/asrcdefs.h
@@ -40,6 +40,7 @@ typedef struct sASRCinstance {
                                 * in the sparce matrix */
     double ASRCprev_value;     /* Previous value for the convergence test */
     double *ASRCacValues;      /* Store rhs and derivatives for ac anal */
+    double *ASRCopValues;      /* Store op for ac anal */
 
     unsigned ASRCtempGiven : 1;       /* indicates temperature specified */
     unsigned ASRCdtempGiven : 1;      /* indicates delta-temp specified  */
diff --git a/src/spicelib/devices/asrc/asrcdest.c b/src/spicelib/devices/asrc/asrcdest.c
index da4f371b5..4a1746c59 100644
--- a/src/spicelib/devices/asrc/asrcdest.c
+++ b/src/spicelib/devices/asrc/asrcdest.c
@@ -22,6 +22,7 @@ ASRCdestroy(GENmodel **model)
         for (here = mod->ASRCinstances; here; here = next) {
             next = here->ASRCnextInstance;
             FREE(here->ASRCacValues);
+            FREE(here->ASRCopValues);
             INPfreeTree(here->ASRCtree);
             if (here->ASRCposptr)
                 free(here->ASRCposptr);
diff --git a/src/spicelib/devices/asrc/asrcload.c b/src/spicelib/devices/asrc/asrcload.c
index 5d2f3f561..8ff3bb6f4 100644
--- a/src/spicelib/devices/asrc/asrcload.c
+++ b/src/spicelib/devices/asrc/asrcload.c
@@ -69,8 +69,10 @@ ASRCload(GENmodel *inModel, CKTcircuit *ckt)
 
             /* The ac load precomputation and storage */
             if (ckt->CKTmode & MODEINITSMSIG)
-                for (i = 0; i < here->ASRCtree->numVars; i++)
+                for (i = 0; i < here->ASRCtree->numVars; i++) {
+                    here->ASRCopValues[i] = asrc_vals[i];
                     here->ASRCacValues[i] = asrc_derivs[i];
+                }
 
             if (here->ASRCtype == ASRC_VOLTAGE) {
 
diff --git a/src/spicelib/devices/asrc/asrcmdel.c b/src/spicelib/devices/asrc/asrcmdel.c
index e23443f0a..cf1ce28d1 100644
--- a/src/spicelib/devices/asrc/asrcmdel.c
+++ b/src/spicelib/devices/asrc/asrcmdel.c
@@ -33,6 +33,7 @@ ASRCmDelete(GENmodel **modList, IFuid modname, GENmodel *killModel)
 
     for (here = (*model)->ASRCinstances; here; here = here->ASRCnextInstance) {
         FREE(here->ASRCacValues);
+        FREE(here->ASRCopValues);
         if (prev)
             FREE(prev);
         prev = here;
diff --git a/src/spicelib/devices/asrc/asrcset.c b/src/spicelib/devices/asrc/asrcset.c
index cf551b59b..bd4d1aede 100644
--- a/src/spicelib/devices/asrc/asrcset.c
+++ b/src/spicelib/devices/asrc/asrcset.c
@@ -64,6 +64,7 @@ ASRCsetup(SMPmatrix *matrix, GENmodel *inModel, CKTcircuit *ckt, int *states)
             here->ASRCposptr = TMALLOC(double *, j);
             here->ASRCvars = TMALLOC(int, here->ASRCtree->numVars);
             here->ASRCacValues = TMALLOC(double, here->ASRCtree->numVars);
+            here->ASRCopValues = TMALLOC(double, here->ASRCtree->numVars);
 
             /* For each controlling variable set the entries
                in the vector of the positions of the SMP */