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Originally Posted by avalon1308
I remember at least one Philips set (K8) in Europe that had 2 transformers, 2 PL509 and 2 PY500.
None of the transformers would work if only one failed. A nightmare to fix.
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This was a 110 ° deflection tv set with 400 watts power consumption. The earlier Philips sets (K6) had one transformer but two line output tubes, PL509 and PL504, both feeding the same transformer.
The two-transformer concept in color television was used by Saba, Grundig, Metz, Graetz, maybe some more.
In the Saba, the HV unit gets the input signal from the line output unit. If the line transformer does not work, the HV transformer does not work too. But otherwise the line output transformer could work while the HV transformer does not work. Power consumption of the Saba is 350 watts. And the high voltage output current for the PL509 is 600 to 900 ma. (285 volts).