[falcon123]

so i made up a loading unit,for the z403 if ,put a jumper to chassis on the fm 1000 pin 2, got  it the thing all wired and warmed up. turned on the generator at a moderate level on am 400 hz mod. i start fiddling c403c and there is something wrong as ive no tone. check the hookups and recheck. nothing dead as a post.by this time i got the generator at max (kenwood sg-5115). finally i decided to to see if the i.f was resonating at ANY frequency. it resonates like mad at 8.7 mc.i tried walking the if up frequency wise while adjusting c403c it wont budge.hmmm maybe c403b has something to do with this nope! its 8.7 ONLY. i ran a frequency counter on the generator and its right on the money at 9.1. is my if transformer toast? its also important to note that i could get some fm but rather weak on two stations. ive replaced all the paper caps and resistors