Pricklely Peete
Franken modder
- Joined
- Feb 17, 2008
- Posts
- 4,188
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- 28
One of the power tubes is marked 6H6N like I expect but the other is marked B82N. Is this a mistake ? The reason why I ask is hum in one channel has crept up ( It was dead quiet for the first 24 hrs of burn in ) to a level that is very noticeable. Obviously something is amiss...
I'm in the process of swapping the power tubes from left to right to test. My only problem is I don't have another set of tubes to replace them with until I either buy some more (from the Ukraine) or have Dave ship me out a new pair (or two).
I just got the amp last Thursday afternoon so the warranty is valid for the power valves ( I think ).
Seems like the wrong type was paired with the other 6H6PI ? Maybe it's one of the driver tubes....a possibility. I'll test those as well. I doubt it's a ground loop as it functioned fine for hours on end before getting noisy in the one channel. I do know that in our area the line voltage is often 125 to 127 V. Could this be a contributer ? So many questions....
I was really enjoying the little D up till now....and I will again...
Thanks for any info on the B82N you guys can provide. I'll check back in an hour...I have to test my tube buffer (MF X-10v3/X-PSU)as well to rule it out in the signal chain. I going to pair it down to source and amp for starters.
I'll update what has happened after I swap tubes around (power first then driver) in a bit.....
Regards,
Peete.
I'm in the process of swapping the power tubes from left to right to test. My only problem is I don't have another set of tubes to replace them with until I either buy some more (from the Ukraine) or have Dave ship me out a new pair (or two).
I just got the amp last Thursday afternoon so the warranty is valid for the power valves ( I think ).
Seems like the wrong type was paired with the other 6H6PI ? Maybe it's one of the driver tubes....a possibility. I'll test those as well. I doubt it's a ground loop as it functioned fine for hours on end before getting noisy in the one channel. I do know that in our area the line voltage is often 125 to 127 V. Could this be a contributer ? So many questions....
I was really enjoying the little D up till now....and I will again...
Thanks for any info on the B82N you guys can provide. I'll check back in an hour...I have to test my tube buffer (MF X-10v3/X-PSU)as well to rule it out in the signal chain. I going to pair it down to source and amp for starters.
I'll update what has happened after I swap tubes around (power first then driver) in a bit.....
Regards,
Peete.
