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Diffstat (limited to 'src/devices/bus/isa/dectalk.cpp')
-rw-r--r--src/devices/bus/isa/dectalk.cpp4
1 files changed, 0 insertions, 4 deletions
diff --git a/src/devices/bus/isa/dectalk.cpp b/src/devices/bus/isa/dectalk.cpp
index 6482ccbf7e6..9312d063158 100644
--- a/src/devices/bus/isa/dectalk.cpp
+++ b/src/devices/bus/isa/dectalk.cpp
@@ -3,7 +3,6 @@
#include "emu.h"
#include "dectalk.h"
-#include "sound/volt_reg.h"
#include "speaker.h"
@@ -172,9 +171,6 @@ void dectalk_isa_device::device_add_mconfig(machine_config &config)
SPEAKER(config, "speaker").front_center();
DAC_12BIT_R2R(config, m_dac, 0).add_route(0, "speaker", 1.0); // unknown DAC
- voltage_regulator_device &vref(VOLTAGE_REGULATOR(config, "vref", 0));
- vref.add_route(0, "dac", 1.0, DAC_VREF_POS_INPUT);
- vref.add_route(0, "dac", -1.0, DAC_VREF_NEG_INPUT);
}
void dectalk_isa_device::write(offs_t offset, uint8_t data)