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diff --git a/src/electronics/simulation/inductance.h b/src/electronics/simulation/inductance.h
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+++ b/src/electronics/simulation/inductance.h
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+/***************************************************************************
+ *   Copyright (C) 2005 by David Saxton                                    *
+ *   david@bluehaze.org                                                    *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ ***************************************************************************/
+
+#ifndef INDUCTANCE_H
+#define INDUCTANCE_H
+
+#include "reactive.h"
+
+/**
+
+@author David Saxton
+*/
+class Inductance : public Reactive
+{
+	public:
+		enum Method
+		{
+			m_none, // None
+			m_euler, // Backward Euler
+			m_trap // Trapezoidal (currently unimplemented)
+		};
+		Inductance( double capacitance, double delta );
+		virtual ~Inductance();
+	
+		virtual Type type() const { return Element_Inductance; }
+		/**
+		 * Set the stepping use for numerical integration of inductance, and the
+		 * interval between successive updates.
+		 */
+		void setMethod( Method m );
+		virtual void time_step();
+		virtual void add_initial_dc();
+		void setInductance( double i );
+		virtual void add_map();
+	
+	protected:
+		virtual void updateCurrents();
+		virtual bool updateStatus();
+	
+	private:
+		double m_inductance; // Inductance
+		Method m_method; // Method of integration
+		
+		double r_eq_old;
+		double v_eq_old;
+};
+
+#endif