Hi Phil, My schematic for the SX-42 has the following values for the 2nd IF (between the 6SK7 & 6SG7: For 10.7 MHz Primary C64 = 47 pf, Secondary C67 = 47 pf. For 455 KHz Primary C65 = 82 pf, Secondary C68 = 390 pf & C69 = 330 pf. Hope that helps. Skip Magnuson