[treys1]

Hi
I just get my vali 2++ today
Without connecting to any source, I can hear hum sound on left channel only when I turn the volume up using both high gain and low gain
Is it a common problem or I should get repaired?

Is it new or did you get it used? If used, is the tube new? You can try reseating the tube, or even cleaning the pins a bit with Emory cloth / nail file / fine sandpaper and see if that helps.

 

[eltonn97]

Is it new or did you get it used? If used, is the tube new? You can try reseating the tube, or even cleaning the pins a bit with Emory cloth / nail file / fine sandpaper and see if that helps.

It is new, I just pick up tdy

 

[bcowen]

It is new, I just pick up tdy

More than likely it's the tube. Email Schiit, tell them what you're hearing and see what they say. Suggest they send you a new tube (rather than sending the amp back), and they probably will. What tube came with the amp? If it's Russian, the chance of interelement leakage is higher than US or Euro tubes, and high leakage can lead to exactly the problem you're describing.

 

[treys1]

More than likely it's the tube. Email Schiit, tell them what you're hearing and see what they say. Suggest they send you a new tube (rather than sending the amp back), and they probably will. What tube came with the amp? If it's Russian, the chance of interelement leakage is higher than US or Euro tubes, and high leakage can lead to exactly the problem you're describing.

Nobody likes leakage.

 

[jonathan c]

Nobody likes leakage.

Does Walmart carry nine-pin 'Depends'?

 

[treys1]

Does Walmart carry nine-pin 'Depends'?

Not sure, but we may need some for this Schiit.

 

[bcowen]

That's a metaphysical conundrum that only tube yogi, @bcowen is qualified to answer... but my guess is they'd still suck. Just not as loudly.

Young grasshoppers, this is a question that I can only answer in person after you have made the 30 mile barefoot trek to my snowy mountaintop temple. Appointment required so as not to interrupt the virgins giving me my daily quantum-tunneling treatment.

 

[jonathan c]

Young grasshoppers, this is a question that I can only answer in person after you have made the 30 mile barefoot trek to my snowy mountaintop temple. Appointment required so as not to interrupt the virgins*** giving me my daily quantum-tunneling treatment.

*** new old (live)stock ...

 

[eltonn97]

More than likely it's the tube. Email Schiit, tell them what you're hearing and see what they say. Suggest they send you a new tube (rather than sending the amp back), and they probably will. What tube came with the amp? If it's Russian, the chance of interelement leakage is higher than US or Euro tubes, and high leakage can lead to exactly the problem you're describing.

It is 6H3N 9005
Is it from Russia ? Sorry I am super new to tube amp

 

[tafens]

It is 6H3N 9005
Is it from Russia ? Sorry I am super new to tube amp

Yes, I take it you mean the 6N3P (6Н3П as written on the tube), that is a Russian tube, and compatible with the 5670/396A.

 

[Thoven]

Got in a GE 5670 + adaptor combo from tubedepot and it isn't working. No visible damage. How can I troubleshoot? I don't have any other tube amps or adaptors i can use to identify which element may be the cause, but the amp works with the stock tube.

 

[jonathan c]

Got in a GE 5670 + adaptor combo from tubedepot and it isn't working. No visible damage. How can I troubleshoot? I don't have any other tube amps or adaptors i can use to identify which element may be the cause, but the amp works with the stock tube.

Does the GE 5670 tube (filament) light up? Do you have another 5670 of any type to put in the adapter?

 

[Thoven]

Does the GE 5670 tube (filament) light up? Do you have another 5670 of any type to put in the adapter?

Does not light up and I don't have anything I can swap out to test. Just got in the amp about a week ago and this was my first roll.

 

[tafens]

Got in a GE 5670 + adaptor combo from tubedepot and it isn't working. No visible damage. How can I troubleshoot? I don't have any other tube amps or adaptors i can use to identify which element may be the cause, but the amp works with the stock tube.

It says in your sig that you have the Vali2++, you shouldn’t need any adaptor to run the 5670 tube in the 2++. What kind of adaptor is it?

 

[Mr Trev]

It says in your sig that you have the Vali2++, you shouldn’t need any adaptor to run the 5670 tube in the 2++. What kind of adaptor is it?

If I'm looking at the right ad, the adapter is 6922 to 5670 - which is good for the earlier gen. Vali2. If the OP does have the Vali2++ then the adaptor is unnecessary and would explain why the tube won't work