Favorite Links

Mechanical Filter Information

WA3KEY Filter Specifications

Collins Filter Division

Compare Collins to Murata ceramic filter

1968 Collins Mechanical Filter Catalog

Adding a mechanical Filter to the FT-817

Installation of mechanical filters into a R-388/51J-3

Table of IF frequencies for commercial radios

Table of IF frequencies for Military Surplus radios

Table of IF frequencies

AA9TT

PRC-47 Conversion to LSB

Clubs and Associations

ANARC Association of North American Radio Clubs

IRCA International Radio Club of America

NRC National Radio Club

Collins Radio Association

Premium-RX Home Page

Suppliers

Grove

International Radio

KIWA

Sherwood Engineering - Synchronous Detector and filters

Receiver Information

R-390A

Early Yeasu History

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Copyright © 2003 John Kolb Last revised Dec. 7, 2003