Music is slow.. loose belt?

otaku · 8th February 2009, 07:24 PM

Anyone familiar with this Kriesler turntable?
http://www.trademe.co.nz/Browse/List...x?id=200105314
It's made in Taiwan, perhaps by some company that has bought the old Kriesler radiogram brand..

I bought it from internet auction, and found the music is slightly slower than it should be. It's belt driven and runs off from a powerpack adapter (doesn't look original to the turntable). It has two speed options 33, and 45. No fine adjustment.

My feeling is that the belt is loose or the voltage from the powerpack is slightly lower than it should be.
Really, what else can go wrong with a turntable??

ralphfcooke · 16th February 2009, 12:32 AM

If it was originally designed for the US or Japanese market, where the power is fed at 60Hz, and has a synchronous motor, and you live in a country where the frequency is 50 HZ, then the turntable will run at 5/6th of the expected speed.
If this is the case your options are to either build a separate 60Hz psu or to change the pulley to one 20% bigger.

Good Luck

otaku · 23rd February 2009, 11:20 PM

Thanks for your reply.
This turntable runs off a 5V DC power adapter. So 50Hz and 60Hz should not be an issue. The seller of this turntable offered to replace the power pack, which supplies more current. This fixed the speed problem.

8th February 2009, 07:24 PM	#1
otaku diyAudio Member Join Date: Jan 2004 Location: Christchurch	Music is slow.. loose belt? Anyone familiar with this Kriesler turntable? http://www.trademe.co.nz/Browse/List...x?id=200105314 It's made in Taiwan, perhaps by some company that has bought the old Kriesler radiogram brand.. I bought it from internet auction, and found the music is slightly slower than it should be. It's belt driven and runs off from a powerpack adapter (doesn't look original to the turntable). It has two speed options 33, and 45. No fine adjustment. My feeling is that the belt is loose or the voltage from the powerpack is slightly lower than it should be. Really, what else can go wrong with a turntable??

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16th February 2009, 12:32 AM	#2
ralphfcooke diyAudio Member Join Date: Jun 2007	If it was originally designed for the US or Japanese market, where the power is fed at 60Hz, and has a synchronous motor, and you live in a country where the frequency is 50 HZ, then the turntable will run at 5/6th of the expected speed. If this is the case your options are to either build a separate 60Hz psu or to change the pulley to one 20% bigger. Good Luck

23rd February 2009, 11:20 PM	#3
otaku diyAudio Member Join Date: Jan 2004 Location: Christchurch	Thanks for your reply. This turntable runs off a 5V DC power adapter. So 50Hz and 60Hz should not be an issue. The seller of this turntable offered to replace the power pack, which supplies more current. This fixed the speed problem.

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