This may be perceived as a dumb question, please go easy on me! I obtained a used Swan TB-4HA recently. The antenna is in fairly good condition. I have a question about the traps. A couple of them rattle as if they have a small stone in them. Unfortunately, without the assembly manual, I have yet to figure out how to get the traps apart to clean them. Would a small amount of debris offset the trap's performance? Does anyone per chance know where I can obtain a copy of the manual for the TB-4HA (or its smaller siblings (TB-2HA and TB-3HA)? If, so I would appreciate it. Thanks!