[Hallicrafters] SX-100 troubleshooting

[Joe Balestrini]

Hi All,  I'm trying to get some life out of my SX-100.  I found that the voltage on the plates of V12 (12AT7 - 2nd converter/oscillator in the sub-chassis) is at 25v rather than 90v.  Anyone have suggestions as to what this might mean or where to look next?  I did find that adjusting the primary or secondary of T9 seems to have no effect on tuning.  I dread the thought of tearing into that sub-chassis.

Thanks.  Joe KG6IMI