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donaldft
6
Jan 18, 2018
I have had mine for about a year and a half or longer. After owning it about a year, it developed a distinct hum in the left channel, one for which I have not been able to locate a local repair shop.
REBx
2
Jan 19, 2018
donaldftyou may need to roll the tubes
donaldft
6
Jan 19, 2018
REBxThanks. I'll give it a try. I got the model, whatever it was, with the upgraded Soviet tubes.
duckofdeath
6
Jan 19, 2018
donaldftReplacing one tube on a multi-tube amp can be a bit tricky. They don't all sound the same. Always try to replace them in pairs (left+right). Stores usually sell tested/matched pairs to make sure you won't get an unbalanced sound.
donaldft
6
Jan 20, 2018
duckofdeathDoes anyone have a link to the tubes that can be used to roll or replace in this amp?
capetownwatches
31
Jan 21, 2018
donaldft https://www.head-fi.org/threads/little-dot-tube-amps-vacuum-tube-rolling-guide.563884/
I've read that the MK series of LD amps does NOT require that power and driver tubes be matched pairs. This seems nonsensical to me. Any other opinions??
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