Kenwood TS-940S For lovers of FM reception
When receiving on ts940s in FM, low-frequency noise is heard in the form of rumble.
As it turns out, the noise is caused by the IC13 ½ chip in the CONTROL UNIT.
High gain of the microcircuit increases the frequency response in the low-frequency spectrum.
I replaced R247 – 390k. at 190k. or a little less. 73
