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Bulletin No: HW-16-1 Side Tone When using the HW-16 with a VFO sometimes a partial operation of the sidetone oscillator takes place due to an increased loading on the bias voltage. This can be corrected by changing R-69 from a 120K ohm resistor to a 220K ohm resistor [PN 1-29]. Also, the original schematic shows R-16 as a 4700 ohm resistor which is incorrect.
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