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dpop

Responses from dpop

Hum on Tube Amp - Can't find source
Here’s some highlights from the jea48 linked Tubes Asylum discussion: -check the bias as they power up, and let them settle in for a bit (like 20 mins) for a final check. -do not buy new tubes for hi-fi amps from guitar tube suppliers. Buy them ... 
Hum on Tube Amp - Can't find source
@jea48  "Manley Snappers Blowing Tubes (over and over)" Great catch (although at the same time, possibly a red flag)! @ervikingo  I did try with my other speakers (Aerial 8b) and noise is present.  Good to know. OK, can cross that off the... 
Hum on Tube Amp - Can't find source
@ervikingo  I wonder if sending the tubes out to be tested might not be a bad idea? TC Tubes Desert Amplifier Repair    
Hum on Tube Amp - Can't find source
@imhififan @ervikingo Have you tried connect a different pair of speakers on your Manley Snappers? Another good point. The manual states: Recommended Speaker Load: Optimized for 5 ohms Do you know what impedance your speakers are rated ervik... 
If there was only ONE album/cd/release you can listen to, over and over.............
@mrskeptic  Seems some folks don't know what "one" means. OK, I'll narrow my list to one: George Harrison - All Things Must Pass  
Hum on Tube Amp - Can't find source
@builder3 ervikingo reports: "there is no mechanical hum on the amps; I have noise on speakers." @ervikingo  they had non OEM inline fuse holders Curious as to how they got that way in the first place (I'm sure we'll never know)?  
Hum on Tube Amp - Can't find source
@ervikingo The unit was biased and received a complete test. Unit passed all factory specs. I’m assuming you sent it in, because of this problem? If it came back with a clean bill of health from Manley, it sounds like this problem was not tak... 
Hum on Tube Amp - Can't find source
@jea48  speaker wire it was it was causing an impedance mismatch for the output transformers for the amp. Wow, these tube amps are more sensitive then I thought. Come to think of it, I was really into tube headphone amps for a while. I discove... 
Hum on Tube Amp - Can't find source
@ervikingo When it comes to AC power, audio gear, or electronics or electricity in general, I have never seen or heard anything like that ever before. Thanks for sharing the video! Wow, WHAT is going on here? And both amps do this?! Plugging one... 
Hum on Tube Amp - Can't find source
@hiend2  Try a solid state unit... ervinkingo has tried that already, and the solid state amps don't hum. Please look back at some of the past comments. @donavabdear  I love tube amps but I'm thinking they are such a pain.  I agree with y... 
Sharing ground wire between two dedicated circuits
This is the most confusing thread I’ve ever read in my entire life. No wonder hi-fi interest is diminishing after reading all this. Many audio-enthusiast’s, who previously didn’t know anything about audio equipment, and the interconnection betw... 
Hum on Tube Amp - Can't find source
@hiend2  Try using an extension cord and plugging them in on other circuits ervikingo has tried that already.  
Hum on Tube Amp - Can't find source
If your amp has them, make sure to run the rear impedance selector switches in the 15K position (it looks like not all Snapper models have them). It’ll be interesting to see if installing 12AT7 tubes has any effect on the hum. I think it will. I... 
If there was only ONE album/cd/release you can listen to, over and over.............
Great question! I simply cannot list just one, as all of these for me are must haves, and can't live without(s): Dave Mason - Alone Together George Harrison - All Things Must Pass Crosby, Stills & Nash - Crosby, Stills & Nash Crosby, S... 
Hum on Tube Amp - Can't find source
@ervikingo I’m going to upload to youtube and post a link Cool! Thanks! I have asked the power company to come test their system. They’ll possibly pull the meter (if they do it quick enough, your generator won’t kick on), check some conne...