Re: HT transformers with extra low-I higher-V winding - what were they for ?
There may have been other industrial applications - although not directly applicable to that particular Parmeko, example applications included HV testers (like RM215 from BPL and AVO where HT was up to 6kV), and megohmeters like RM175 from BPL (1050V sec), and vacuum gauge meters (like from Philips No.3 which used a Parmeko Type 5080/9A; 1450V 1.5mA 9.2kΩ).
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