marysam Posted November 22, 2016 Share Posted November 22, 2016 (edited) Hi! I brought my EU standard turntable (Music Hall MMF 2.2, 220V) with me to the US. Bought a compatible 110V plug on needledoctor. It's working, but records are running fast (40.5 RPM - measured with the app). What that could possibly be? Any ideas? Could possibly something bad happened during transportation? Edited November 22, 2016 by marysam Quote Link to comment Share on other sites More sharing options...
arem Posted November 22, 2016 Share Posted November 22, 2016 I think European electricity runs to a different standard than North America and that would cause it to turn faster. Quote Link to comment Share on other sites More sharing options...
marysam Posted November 22, 2016 Author Share Posted November 22, 2016 @arem yep, that's why a bought a US compatible plug on needledoctor. I also tried an electric transformer with the same result - playing faster. Quote Link to comment Share on other sites More sharing options...
A-Bon Posted November 22, 2016 Share Posted November 22, 2016 (edited) The original power supply is for 220 volt - 50Hz. Your new power supply is for 110 volt - 60Hz. Does the music hall have an internal setting for 60hz? Some turntables do but they are usually INSIDE the deck.... if it doesnt ...you need a frequency inverter which the cheapest one i have found is about $3000 ... a transformer wont work unfortunately Edited November 22, 2016 by AGB Quote Link to comment Share on other sites More sharing options...
marysam Posted November 22, 2016 Author Share Posted November 22, 2016 @AGB exactly, a compatible US plug has 60HZ, the original EU one has 50HZ. I wish I knew that before carrying the turntable across the ocean! I was pretty sure a transformer is all I need. Quote Link to comment Share on other sites More sharing options...
A-Bon Posted November 22, 2016 Share Posted November 22, 2016 (edited) 1 hour ago, marysam said: @AGB exactly, a compatible US plug has 60HZ, the original EU one has 50HZ. I wish I knew that before carrying the turntable across the ocean! I was pretty sure a transformer is all I need. not correct... the plug is only a compatible way to connect power... the motor(during manufacturing) was created to work correctly at 50HZ .. regardless of what power plug you connect, the motor will only run correctly at 50HZ ... plugging into the wall in america 60HZ will mean the motor will run 20% faster... Edited November 22, 2016 by AGB Quote Link to comment Share on other sites More sharing options...
marysam Posted November 22, 2016 Author Share Posted November 22, 2016 I deeper research and I've found out that Amazon sells a new pulley that may help. I'm trying to figure out if it's for the US market or for EU market. A-Bon 1 Quote Link to comment Share on other sites More sharing options...
A-Bon Posted November 22, 2016 Share Posted November 22, 2016 http://www.50hz60hz.com/60hz-motor-running-on-50hz-power-supply.html Quote Link to comment Share on other sites More sharing options...
A-Bon Posted November 22, 2016 Share Posted November 22, 2016 1 minute ago, marysam said: I deeper research and I've found out that Amazon sells a new pulley that may help. I'm trying to figure out if it's for the US market or for EU market. that would be a MUCH cheaper and easier option Quote Link to comment Share on other sites More sharing options...
marysam Posted November 22, 2016 Author Share Posted November 22, 2016 This one should work http://www.needledoctor.com/33-45rpm-Pulley-for-Most-Pro-Ject-Turntables Quote Link to comment Share on other sites More sharing options...
A-Bon Posted November 22, 2016 Share Posted November 22, 2016 3 minutes ago, marysam said: This one should work http://www.needledoctor.com/33-45rpm-Pulley-for-Most-Pro-Ject-Turntables Thats for a project... id ask if its compatible with yours Quote Link to comment Share on other sites More sharing options...
Dominic_ Posted November 22, 2016 Share Posted November 22, 2016 1 hour ago, marysam said: @AGB exactly, a compatible US plug has 60HZ, the original EU one has 50HZ. I wish I knew that before carrying the turntable across the ocean! I was pretty sure a transformer is all I need. A plug converter that physically changes the socket is different from a converter which actually changes the power output to the device Quote Link to comment Share on other sites More sharing options...
allenh Posted November 22, 2016 Share Posted November 22, 2016 6 hours ago, marysam said: I deeper research and I've found out that Amazon sells a new pulley that may help. I'm trying to figure out if it's for the US market or for EU market. This It depends on whether it's an AC or DC motor and whether it has any form of electronic speed control on it, yours from memory is directly AC powered with no electronic speed control If the speed is not electronically controlled then you need a different pulley as the mains frequency is different in the US (60Hz) to Europe (50Hz) To explain why this is, with a turntable that has an AC motor it's the frequency that dictates the speed not the voltage so a table which uses electronic speed control changes the frequency to the motor to change the speed and if you move it between Europe or the US you just use a transformer to change the voltage (for the electronics) and adjust the speed to suit but with most AC motor tables they are directly AC powered so the speed is directly determined by the mains frequency which is not adjustable. With a DC motor the frequency doesn't exist and with a normal low voltage DC motor variable speed system there is basically a variable power supply in line that varies the voltage to the motor which then varies it's speed so provided there is enough adjustment range it's fine The other thing to consider is that a table with a motor designed to run on 50hz mains that isn't electronically speed controlled when used on 60Hz mains will will have a shorter motor lifespan, not something to panic about hugely but something to consider with a vintage table (i.e 60's or 70's) that has had a lot of use at 50Hz Quote Link to comment Share on other sites More sharing options...
slinch Posted November 22, 2016 Share Posted November 22, 2016 8 hours ago, AGB said: Thats for a project... id ask if its compatible with yours Music Hall tables are made entirely by pro-ject, so all the components should be identical. A-Bon 1 Quote Link to comment Share on other sites More sharing options...
marysam Posted November 22, 2016 Author Share Posted November 22, 2016 Guys, I'll write here if the pulley solution works! Quote Link to comment Share on other sites More sharing options...
marysam Posted December 5, 2016 Author Share Posted December 5, 2016 Hi! The pulley arrived and it works well. Rotation speed is 33.75 now. I am planning to buy a new belt as well! vinyl addict 1 Quote Link to comment Share on other sites More sharing options...
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