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Anyone Know Where I should Look to Figure Out This Hum?

http://https//www.dropbox.com/s/faxmop972rok7i1/Noise.m4a?dl=0

I recently purchased a Lamm LP2. First couple days, silent. Now this. It's coming from both sides equally, turning up the volume makes it louder. It's not the cartridge. Noise still there when I unplug the turntable inputs from the phono preamp. It sure doesn't sound like a ground hum and since it's both channels I don't think it's going to be a bad tube . I have another set of tubes on the way but they won't be here until next week so I can't double check that. I swapped out the rectifier tube and that changed nothing. 

Help!
dhcod

Showing 2 responses by no_regrets

no_regrets
549 posts
 
So sorry to revive an older thread, but am curious about two things....

1.  Were you able to solve the hum/buzz problem?  Was it the fridge, the wiring from an older house, bad capacitor, etc.  Are you still using the cheater plug as the fix?

2.  I am considering getting a Lamm LP2.1 and am wondering if the LP2.1 is also incompatible with older home wiring as my house is over 76 years old now.

Thank you,
Don
no_regrets
549 posts
 
@dhcod 

Thank you for your reply!  That's quite an endorsement for the Lamm.  I hope all goes well for you and you are able to make the upgrade to the LP2.1 :)

Wishing you all the very best of health and happiness!
Don
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