EAR phono pre problem ??? Help needed..........


I've ran into a problem playing vinyl the last couple days. Everything will be sounding great then my left channel just stops! No sound but the right is still there. I noticed after turning the EAR 834p off and on again. The sound is restored and lasts another forty minutes or so. Then the same channel shuts off again. Dido and the sound returns. Have I a tube that is getting over heated and going down? What do I do ?? Help please.................
zenieth
The unit hasn't done it again. However I did notice a small crackel noise in the gain knob. Very slight but it is noticeable. Maybe I need to clean the pot switch as directed by Meisterkleef. I swaped the tubes prior and well maybe that's why it hasn't happened again. Or the switch just has some dirt on it. Thanks for all of your help in the matter too...........
Hello Zenieth, I had the same problem w/ my EAR last month,
Turned out to be a bad tube ( V3 which I understand to be the cathode follower)
Good Luck

Zigstien
Zigstien,

Thanks for the response. What did you replace it with? All three of just the V3?
Hello Zenieth, I replaced V3 only w/ a sovtek 12ax7LPS.
in V1 and V2 I've been using Mullards 12ax7.