[Elecraft] Variable bandwidth crystal filters

I really like the way the variable-bandwidth crystal filter works in my Wildnerness Radio Sierra QRP transceiver. Since that radio had the same designer (Wayne N6KR) I assume the basic technology is the same. i.e. a varactor-tuned crystal ladder filter. Any guesses on when the variable-bandwidth

[Elecraft] Variable-Bandwidth Crystal Filters

When will we begin to see more information on these? Regards, Dick - KA5KKT/4 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth