Update items.js

Signed-off-by: Pyritie <pyritie@gmail.com>

kubejs/startup_scripts/gtceu/items.js

@@ -3,4 +3,5 @@
 const registerGTCEuItems = (event) => {
     event.create('tfg:unfinished_vacuum_tube', 'create:sequenced_assembly')
     event.create('tfg:unfinished_basic_electronic_circuit', 'create:sequenced_assembly')
-}
+    event.create('tfg:unfinished_copper_coil_block', 'create:sequenced_assembly')
+}