Phono stage hum


Dipping my toe into Tubes for first time.

Have been using simaudio moon lp5.3 phone stage.

today trying Manley Chinook tube stage.

getting what sounds like ground loop hum with the chinook and my thorens 160 super... tried with a different turntable (cheap teac) and no hum....

any ideas? 
otherones

Showing 3 responses by rotaryphone

Do you place two TT on the same spot?

I would move the phono amp away from the other equipment as far as you can and see what happens. 
My next guess is TT itself is not grounded properly within TT chassis. I would check RCA solder joint and make sure it checks out.
I would think you are right @otherones.
I guess chinook had some issues before according to google search. Might have to give them a call. I would try a cheater plug first tho.

Did you buy it new from a dealer?