Re: [Drakelist] R4C AM Filter

2016-02-29 Thread Gary Poland
Tim, Check out INRAD filters, buying a used filter that’s 30 to 35 years old is a gamble, crystals age and the center frequency or shape factor can change, been there myself! 73, Gary___ Drakelist mailing list Drakelist@zerobeat.net

[Drakelist] R4C AM Filter

2016-02-29 Thread Tim English
Now I would like to find a FL-6000 AM filter for my R4C to max it out completely. All I am seeing are SL-6000's for the TR-7 series. Not that much interested in 75M AM but for selective SW listening. The stock R4C is extremely wide in the AM mode. Any help or suggestions appreciated. -- Tim,