diff --git a/code/game/objects/items/devices/transfer_valve.dm b/code/game/objects/items/devices/transfer_valve.dm
index a8de11836a8..883f9d57699 100644
--- a/code/game/objects/items/devices/transfer_valve.dm
+++ b/code/game/objects/items/devices/transfer_valve.dm
@@ -10,6 +10,7 @@
 	var/mob/attacher = null
 	var/valve_open = 0
 	var/toggle = 1
+	origin_tech = "materials=1;engineering=1"
 
 /obj/item/device/transfer_valve/IsAssemblyHolder()
 	return 1
diff --git a/code/modules/assembly/bomb.dm b/code/modules/assembly/bomb.dm
index dbe63bcbd3b..f29fd150717 100644
--- a/code/modules/assembly/bomb.dm
+++ b/code/modules/assembly/bomb.dm
@@ -10,6 +10,7 @@
 	var/status = 0   //0 - not readied //1 - bomb finished with welder
 	var/obj/item/device/assembly_holder/bombassembly = null   //The first part of the bomb is an assembly holder, holding an igniter+some device
 	var/obj/item/weapon/tank/bombtank = null //the second part of the bomb is a plasma tank
+	origin_tech = "materials=1;engineering=1"
 
 /obj/item/device/onetankbomb/examine(mob/user)
 	..()
diff --git a/code/modules/research/experimentor.dm b/code/modules/research/experimentor.dm
index 8422a2c96f1..ea9e34be746 100644
--- a/code/modules/research/experimentor.dm
+++ b/code/modules/research/experimentor.dm
@@ -191,10 +191,12 @@
 	if(loaded_item)
 		if(cloneMode && cloneCount > 0)
 			visible_message("<span class='notice'>A duplicate [loaded_item] pops out!</span>")
-			new loaded_item(get_turf(pick(oview(1,src))))
+			var/type_to_make = loaded_item.type
+			new type_to_make(get_turf(pick(oview(1,src))))
 			--cloneCount
 			if(cloneCount == 0)
 				cloneMode = FALSE
+			return
 		var/turf/dropturf = get_turf(pick(view(1,src)))
 		if(!dropturf) //Failsafe to prevent the object being lost in the void forever.
 			dropturf = get_turf(src)
@@ -225,7 +227,7 @@
 	recentlyExperimented = 1
 	icon_state = "h_lathe_wloop"
 	var/chosenchem
-	var/criticalReaction = locate(exp_on) in critical_items ? TRUE : FALSE
+	var/criticalReaction = (exp_on.type in critical_items) ? TRUE : FALSE
 	////////////////////////////////////////////////////////////////////////////////////////////////
 	if(exp == SCANTYPE_POKE)
 		visible_message("[src] prods at [exp_on] with mechanical arms.")
@@ -379,7 +381,7 @@
 		visible_message("[src] lowers [exp_on]'s temperature.")
 		if(prob(EFFECT_PROB_LOW) && criticalReaction)
 			visible_message("<span class='warning'>[src]'s emergency coolant system gives off a small ding!</span>")
-			var/obj/machinery/vending/coffee/C = new /obj/machinery/vending/coffee(get_turf(pick(oview(1,src))))
+			var/obj/item/weapon/reagent_containers/food/drinks/coffee/C = new /obj/item/weapon/reagent_containers/food/drinks/coffee(get_turf(pick(oview(1,src))))
 			playsound(src.loc, 'sound/machines/ding.ogg', 50, 1) //Ding! Your death coffee is ready!
 			chosenchem = pick("uranium","frostoil","ephedrine")
 			C.reagents.remove_any(25)