From the schematic and the “normal” voltages chart in the SX-117 manual, the primary +B voltage at C117B looks to be 200V.
Which means a transformer HV secondary of 280Vct (140-0-140).
There is also a replacement transformer specified in the attached document, but the secondary voltage rating seems to high, IMHO.
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73, Jacques, VE2JFE in Montreal
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Hello,
I am restoring a SX-117. A former owner replaced the original transformer by a transformer with a primary voltage of 220 Volt. The secondary voltage of this transformer is much too high. I would like to know if there is any info on the secondary voltage of the original transformer as I am looking for getting a replacement.