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diff --git a/testsuite/vests/vhdl-ams/ashenden/compliant/analog-modeling/tb_analog_switch.vhd b/testsuite/vests/vhdl-ams/ashenden/compliant/analog-modeling/tb_analog_switch.vhd
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+
+-- Copyright (C) 2002 Morgan Kaufmann Publishers, Inc
+
+-- This file is part of VESTs (Vhdl tESTs).
+
+-- VESTs 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. 
+
+-- VESTs is distributed in the hope that it will be useful, but WITHOUT
+-- ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+-- FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+-- for more details. 
+
+-- You should have received a copy of the GNU General Public License
+-- along with VESTs; if not, write to the Free Software Foundation,
+-- Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA 
+
+library IEEE;
+use IEEE.std_logic_1164.all;
+library IEEE_proposed;
+use IEEE_proposed.electrical_systems.all;
+entity tb_analog_switch is
+end tb_analog_switch;
+
+architecture TB_analog_switch of tb_analog_switch is
+    -- Component declarations
+    -- Signal declarations
+    terminal in_ana_src : electrical;
+	terminal in_switch : electrical;
+    signal clock_out : std_logic;
+begin
+    -- Signal assignments
+    -- Component instances
+    vdc1 : entity work.v_constant(ideal)
+        generic map(
+            level => 1.0
+        )
+        port map(
+            pos => in_ana_src,
+            neg => ELECTRICAL_REF
+        );
+    Clk1 : entity work.clock(ideal)
+        generic map(
+            period => 10.0ms
+        )        
+		port map(
+            clk_out => clock_out
+        );
+    R1 : entity work.resistor(ideal)
+        generic map(
+            res => 100.0
+        )        
+		port map(
+            p1 => in_ana_src,
+            p2 => in_switch
+        );
+    swtch : entity work.analog_switch(ideal)
+        port map(
+            n1 => in_switch,
+            n2 => ELECTRICAL_REF,
+			control => clock_out
+        );
+end TB_analog_switch;