diff --git a/scripts/src/netlist.lua b/scripts/src/netlist.lua
index 2d061aeeee6..7ca677d0524 100644
--- a/scripts/src/netlist.lua
+++ b/scripts/src/netlist.lua
@@ -139,7 +139,6 @@ project "netlist"
 		MAME_DIR .. "src/lib/netlist/devices/nld_system.cpp",
 		MAME_DIR .. "src/lib/netlist/devices/nld_system.h",
 		MAME_DIR .. "src/lib/netlist/devices/nld_cmos.h",
-		MAME_DIR .. "src/lib/netlist/devices/nld_signal.h",
 		MAME_DIR .. "src/lib/netlist/devices/nld_truthtable.cpp",
 		MAME_DIR .. "src/lib/netlist/devices/nld_truthtable.h",
 		MAME_DIR .. "src/lib/netlist/macro/nlm_ttl74xx.cpp",
diff --git a/src/lib/netlist/devices/nld_signal.h b/src/lib/netlist/devices/nld_signal.h
deleted file mode 100644
index 8805f9a8914..00000000000
--- a/src/lib/netlist/devices/nld_signal.h
+++ /dev/null
@@ -1,119 +0,0 @@
-// license:GPL-2.0+
-// copyright-holders:Couriersud
-/*
- * nld_signal.h
- *
- */
-
-#ifndef NLD_SIGNAL_H_
-#define NLD_SIGNAL_H_
-
-#include "nl_base.h"
-
-// ----------------------------------------------------------------------------------------
-// MACROS
-// ----------------------------------------------------------------------------------------
-
-#define NETLIB_SIGNAL(_name, _num_input, _check, _invert)                           \
-	class NETLIB_NAME(_name) : public net_signal_t<_num_input, _check, _invert>     \
-	{                                                                               \
-	public:                                                                         \
-		NETLIB_NAME(_name) (netlist_t &anetlist, const pstring &name)               \
-		: net_signal_t<_num_input, _check, _invert>(anetlist, name) { }             \
-	}
-
-NETLIB_NAMESPACE_DEVICES_START()
-
-// ----------------------------------------------------------------------------------------
-// net_signal_t
-// ----------------------------------------------------------------------------------------
-
-template <int _numdev, int _check, int _invert>
-class net_signal_t : public device_t
-{
-public:
-	net_signal_t(netlist_t &anetlist, const pstring &name)
-	: device_t(anetlist, name), m_active(1)
-	{
-	}
-
-	void start() override
-	{
-		const char *sIN[8] = { "A", "B", "C", "D", "E", "F", "G", "H" };
-
-		register_output("Q", m_Q[0]);
-		for (int i=0; i < _numdev; i++)
-		{
-			register_input(sIN[i], m_I[i]);
-		}
-		save(NLNAME(m_active));
-	}
-
-	void reset() override
-	{
-		m_Q[0].initial(0);
-		m_active = 1;
-	}
-
-	ATTR_HOT inline netlist_sig_t process()
-	{
-		for (int i = 0; i< _numdev; i++)
-		{
-			this->m_I[i].activate();
-			if (INPLOGIC(this->m_I[i]) == _check)
-			{
-				for (int j = 0; j < i; j++)
-					this->m_I[j].inactivate();
-				for (int j = i + 1; j < _numdev; j++)
-					this->m_I[j].inactivate();
-				return _check ^ (1 ^ _invert);
-			}
-		}
-		return _check ^ _invert;
-	}
-
-	ATTR_HOT virtual void inc_active() override
-	{
-		const netlist_time times[2] = { NLTIME_FROM_NS(15), NLTIME_FROM_NS(22)};
-		nl_assert(netlist().use_deactivate());
-		if (++m_active == 1)
-		{
-			// FIXME: need to activate before time is accessed !
-			netlist_time mt = netlist_time::zero;
-			for (int i = 0; i< _numdev; i++)
-			{
-				if (this->m_I[i].net().time() > mt)
-					mt = this->m_I[i].net().time();
-			}
-			netlist_sig_t r = process();
-			m_Q[0].net().set_Q_time(r, mt + times[r]);
-		}
-	}
-
-	ATTR_HOT virtual void dec_active() override
-	{
-		nl_assert(netlist().use_deactivate());
-		if (--m_active == 0)
-		{
-			for (int i = 0; i< _numdev; i++)
-				m_I[i].inactivate();
-		}
-	}
-
-	virtual void update() override
-	{
-		const netlist_time times[2] = { NLTIME_FROM_NS(15), NLTIME_FROM_NS(22)};
-
-		netlist_sig_t r = process();
-		OUTLOGIC(this->m_Q[0], r, times[r]);
-	}
-
-public:
-	logic_input_t m_I[_numdev];
-	logic_output_t m_Q[1];
-	INT32 m_active;
-};
-
-NETLIB_NAMESPACE_DEVICES_END()
-
-#endif /* NLD_SIGNAL_H_ */