Yaesu YF-115C (XF-115C) CW Collins Filter for FT-1000MP Series and FT-847
This is a YF-115C (also known as XF-115C) plug-in CW filter made for the Yaesu FT-1000MP Series (including Mark V Field) and the FT-847 transceiver. This filter was removed in working condition from owner's FT-1000MP Mk V Field.