diff --git a/src/emu/sound/ay8910.c b/src/emu/sound/ay8910.c
index d8407ccb2cc..3245e9e4b04 100644
--- a/src/emu/sound/ay8910.c
+++ b/src/emu/sound/ay8910.c
@@ -423,6 +423,23 @@ INLINE void build_single_table(double rl, const ay_ym_param *par, int normalize,
 
 }
 
+INLINE void build_resisor_table(const ay_ym_param *par, INT32 *tab, int zero_is_off)
+{
+    int j;
+
+    for (j=0; j < par->res_count; j++)
+    {
+
+        if (zero_is_off && j == 0)
+        {
+            tab[j] = 1e6;
+        }
+        else
+            tab[j] = par->res[j];
+    }
+}
+
+
 INLINE UINT16 mix_3D(ay8910_context *psg)
 {
 	int indx = 0, chan;
@@ -690,11 +707,22 @@ static void build_mixer_table(ay8910_context *psg)
 		normalize = 1;
 	}
 
-	for (chan=0; chan < NUM_CHANNELS; chan++)
-	{
-		build_single_table(psg->intf->res_load[chan], psg->par, normalize, psg->vol_table[chan], psg->zero_is_off);
-		build_single_table(psg->intf->res_load[chan], psg->par_env, normalize, psg->env_table[chan], 0);
-	}
+    if ((psg->intf->flags & AY8910_RESISTOR_OUTPUT) != 0)
+    {
+        for (chan=0; chan < NUM_CHANNELS; chan++)
+        {
+            build_resisor_table(psg->par, psg->vol_table[chan], psg->zero_is_off);
+            build_resisor_table(psg->par_env, psg->env_table[chan], 0);
+        }
+    }
+    else
+    {
+        for (chan=0; chan < NUM_CHANNELS; chan++)
+        {
+            build_single_table(psg->intf->res_load[chan], psg->par, normalize, psg->vol_table[chan], psg->zero_is_off);
+            build_single_table(psg->intf->res_load[chan], psg->par_env, normalize, psg->env_table[chan], 0);
+        }
+    }
 	/*
 	 * The previous implementation added all three channels up instead of averaging them.
 	 * The factor of 3 will force the same levels if normalizing is used.
diff --git a/src/emu/sound/ay8910.h b/src/emu/sound/ay8910.h
index c921ca7adc0..40882a17704 100644
--- a/src/emu/sound/ay8910.h
+++ b/src/emu/sound/ay8910.h
@@ -56,13 +56,11 @@ YMZ294: 0 I/O port
 
 /*
  * The following define causes the driver to output
- * raw volume levels, i.e. 0 .. 15 and 0..31.
- * This is intended to be used in a subsequent
- * mixing modul (i.e. mpatrol ties 6 channels from
- * AY-3-8910 together). Do not use it now.
+ * resistor values. Intended to be used for
+ * netlist interfacing.
  */
-/* TODO: implement mixing module */
-#define AY8910_RAW_OUTPUT           (0x08)
+
+#define AY8910_RESISTOR_OUTPUT      (0x08)
 
 /*
  * This define specifies the initial state of YM2149