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Diffstat (limited to 'src/mame/drivers/byvid.cpp')
-rw-r--r--src/mame/drivers/byvid.cpp4
1 files changed, 0 insertions, 4 deletions
diff --git a/src/mame/drivers/byvid.cpp b/src/mame/drivers/byvid.cpp
index a95a4b25143..3b1bc3a854f 100644
--- a/src/mame/drivers/byvid.cpp
+++ b/src/mame/drivers/byvid.cpp
@@ -45,7 +45,6 @@ ToDo (granny):
#include "machine/timer.h"
#include "sound/beep.h"
#include "sound/dac.h"
-#include "sound/volt_reg.h"
#include "video/tms9928a.h"
#include "speaker.h"
@@ -793,9 +792,6 @@ void by133_state::babypac(machine_config &config)
/* sound hardware */
SPEAKER(config, "speaker").front_center();
ZN429E(config, "dac", 0).add_route(ALL_OUTPUTS, "speaker", 0.25); // U32 (Vidiot) or U6 (Cheap Squeak)
- voltage_regulator_device &vref(VOLTAGE_REGULATOR(config, "vref"));
- vref.add_route(0, "dac", 1.0, DAC_VREF_POS_INPUT);
- vref.add_route(0, "dac", -1.0, DAC_VREF_NEG_INPUT);
SPEAKER(config, "beee").front_center();
BEEP(config, m_beep, 600).add_route(ALL_OUTPUTS, "beee", 0.10);