I'm looking for an HS-20 headset (NOT an HS-30... or at least so it says on the wiring diagram) for use with a TG-5-B Telegraph Set, preferably in very good to NOS condition. It's supposed to have a PL-55 Plug, CC-335 Cord, and R3 Receiver If you have one or two, please email me off list. Thanks, -John