[Premium-Rx] Snelgrove 1.4 Mhz filters

[Enrique Fernandez García]

Hello,
 
  I have some 1.4 Mhz crystal filters since the 80,s but I can not find any datasheet on the web. I think that these filters are rare nowadays.
 
  I have tried to fit one in my Racal 1772 receiver but not luck,  the sound that comes out the speaker is a bit muffled so I guess that is a mismatch impedance.
 
   They were made by C.R. SNELGROVE COMPANY TORONTO CANADA.
   All of them are brand new. I have the following ones:
 
   4 pics of  F 1400-55L ,  4 pics of  F 1400-55U,  2 pics of F 1400-43A   also two  F35400-2
 
   If anybody is interested, please mailme off the list.
 
   73,s  
    mail:   enriqueeeeee2001 at yahoo.es