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Diffstat (limited to 'src/mame/drivers/s6.cpp')
-rw-r--r--src/mame/drivers/s6.cpp4
1 files changed, 0 insertions, 4 deletions
diff --git a/src/mame/drivers/s6.cpp b/src/mame/drivers/s6.cpp
index 7a55a8bee15..dfac8da01b3 100644
--- a/src/mame/drivers/s6.cpp
+++ b/src/mame/drivers/s6.cpp
@@ -53,7 +53,6 @@ ToDo:
#include "machine/6821pia.h"
#include "sound/dac.h"
#include "sound/hc55516.h"
-#include "sound/volt_reg.h"
#include "speaker.h"
#include "s6.lh"
@@ -472,9 +471,6 @@ void s6_state::s6(machine_config &config)
SPEAKER(config, "speaker").front_center();
MC1408(config, "dac", 0).add_route(ALL_OUTPUTS, "speaker", 0.5);
- 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, "speech").front_center();
HC55516(config, m_hc55516, 0).add_route(ALL_OUTPUTS, "speech", 1.00);