International Radio :: Mods...
Using Inrad Xtal filter - Resource Detail - The DXZone.com
InRad 300Hz CW Filter on my FT-817ND | YO4HHP's blog
Four Filters in FT-897D
QRPproject! Devoted to QRP and Amateur Radio homebrewing
TS-870 4KC Filter Mod
INRAD - Vibroplex
Inrad International Radio SSB Matched Crystal Filter Set TS-130S w/ Instructions | eBay
DZKit - Filters
FT-847 Roofing Filter Mod
Yaesu FT-920 with INRAD 250 Hz CW Filter - YouTube
FILTRO INRAD 721 YAESU
DZKit - Filters
INRAD DMS-686-Y INRAD Desk Microphone Systems | DX Engineering
YAESU FT-857D - FILTRO 2.9 Khz INRAD - RX EA8CVZ EA8CTF EN PUERTO RICO 10 METROS - YouTube
FILTRO INRAD 705-C
Inrad Roofing Filter in the Yaesu FT-920 - Resource Detail - The DXZone.com
Inrad 703-C 400hz plug in CW filter (455khz center frequency) in Excellent | eBay
Yaesu FT-857/897 Custom Filter Display – ALLOUTPUT.com
Inrad Roofing Filters
INRAD DMS-665-Y INRAD Desk Microphone Systems | DX Engineering
FT1000D Filter: Collins Mechanical Filter K6JRF 7/5/2000
International Radio ::...
Inrad 103 IR-88H400 AC 400hz CW filter (8830khz center) for Kenwood Excellent | eBay
