hi i have a heath xtal filter unused for sale. 404-328 2.1 khz at 6 db. cf is 3395khz. $30 plus shipping from central fl. thank you al Listserver Subscription:listserv at listserv.tempe.gov - "subscribe heath 'name' 'call'" Listserver Submissions: heath at listserv.tempe.gov Listserver Unsubscribe: listserv at listserv.tempe.gov - -"signoff heath"