03-02-2020, 08:31 PM
The original Philco service literature shows no ballast, nor any provision for one. If France was on the 115 volt standard in the 1930s, either a step-up transformer would be required (115 to 230 volts AC), or a power transformer replacement. A ballast would be useless in such an application. Now, if it were a French-made set (115 VAC) which was then taken to the UK (230 VAC), that's another story...
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Ron Ramirez
Ferdinand IN