[SignalOne] Signal One Filter

[Martha & Randy Ballard]

Hello ,    I am looking for the filter board that utilized two Collins 
Mechanical Filters and was manufactured for the Icom IC-781 transceiver. 
A ribbon cabled installation kit was also sold as an option for this 
filter. If anyone knows where I can purchase this filter new or used 
please let me know. Also if anyone has any information on using this 
filter with the 781 please advise because I am hearing mixed results. 
 thanks ,   Randy N5WV      n5wv@eastex.net