Wondering if someone more knowlegeable can shed some light on this for me please. A friend has just purchased a secondhand Ariston 'Q' deck turntable for playing her vinyl collection. Power supply is via a 12v transformer, the plug in type, with a jack plugging into turntable. Tested here, output constant 12.16/12.17 V D.C. L.P.'s play ok. Take it to her flat round the corner, output 12.15/12.16 V but this can suddenly drop to 10-11 V, turntable slows down with corresponding change in sound. (Boy George sounds like Barry White im told!)
Would I be right in thinking the voltage fluctuations from the transformer are caused by fluctuations in the Mains voltage? Surely a 240-12 V transformer will give a 20x reduction in input voltage, if input drops then output drops correspondingly. Obviously with a turntable speed is critical, she dont want to buy another turntable for same to reoccur.
If its of any relevance she's also having a lot of lightbulbs blow, 3 in last week.
Any sensible thoughts welcome!
Cheers,
Nick and very stressed Kaz!
Would I be right in thinking the voltage fluctuations from the transformer are caused by fluctuations in the Mains voltage? Surely a 240-12 V transformer will give a 20x reduction in input voltage, if input drops then output drops correspondingly. Obviously with a turntable speed is critical, she dont want to buy another turntable for same to reoccur.
If its of any relevance she's also having a lot of lightbulbs blow, 3 in last week.
Any sensible thoughts welcome!
Cheers,
Nick and very stressed Kaz!