bcowen
Headphoneus Supremus
The E on the top row has G and C missing on either side.
Man, your vision is even worse than 20/200. Do you guys have, like, eye doctors there?
The E on the top row has G and C missing on either side.
Man, your vision is even worse than 20/200. Do you guys have, like, eye doctors there?
Something of a magic sonic pairing here, best of both worlds with solid state clarity and yet silky top end and a huge tubey sounding bottom end with Beyer DT1990 ..
1962 Westinghouse triple mica 12au7 (5814A) and a soviet 1962 Svetlana 6N13S
So as I continue to search for 6080 tubes I found another one that seems doubtful to me as I have only seen the GEC is greenish paint in the typical GEC font. So is this one in the attached picture a legit GEC 6080?
Thanks in advance.
So as I continue to search for 6080 tubes I found another one that seems doubtful to me as I have only seen the GEC is greenish paint in the typical GEC font. So is this one in the attached picture a legit GEC 6080?
The text and graphics on tubes manufactured in the same factory changed over the years. And in some cases, the text and graphics were tailored to the customer. For example, tubes for the military versus for civilian use. In the end, it is best to compare construction of the tube you are considering purchasing to one that you know for sure is genuine. However, in this case, unfortunately, the picture is too blurry to make out much detail. The top and bottom mica spacers appear to be correct, but I can't see anything above the top mica.
Does your BHC have a problem pushing the 5998? (I realize this is not a 5998 pictured here).
I just finished getting my BHC back up to speed and when using a 5998 and a 6sn7, it seemed to struggle to sound good or to even get the tubes hot.
When using a plain jane 6080 and 12au7, everything is great and it sounds great, but the 5998 and 6sn7 made it gasp for air.
Does the 5998 require more POWER?
In my Incubus amp the 5998 glows so bright I don't need other lighting (I'm being sarcastic, but you get the drift). With the BHC, I'd be lucky to see a tiny sparkle of light.
I have no issues with my BHC concerning power, dynamic range, musical ease when Tung Sol 5998 and Brimar CV4003 are the tube line-up. Same result with Chatham 6080wb and Brimar CV4003. Could your issue be related to the use of a 6SN7 vs a 12AU7?...Does your BHC have a problem pushing the 5998? (I realize this is not a 5998 pictured here).
I just finished getting my BHC back up to speed and when using a 5998 and a 6sn7, it seemed to struggle to sound good or to even get the tubes hot.
When using a plain jane 6080 and 12au7, everything is great and it sounds great, but the 5998 and 6sn7 made it gasp for air.
Does the 5998 require more POWER?
In my Incubus amp the 5998 glows so bright I don't need other lighting (I'm being sarcastic, but you get the drift). With the BHC, I'd be lucky to see a tiny sparkle of light.
Great advise! I couldn't believe the reduction in noise when I took a few of my tubes into work and cleaned the pins under a scope with some fine emery paper. Even though the pins looked to be clean I heard an improvement, especially in some noisy tubes.The filament current for a 5998 is 2.4A, whereas the 6080 requires 2.5A. So, it shouldn’t be a problem to run the 5998, even with a 6SN7. Probably the pins need to have a bit of a cleaning.
Does your BHC have a problem pushing the 5998? (I realize this is not a 5998 pictured here).
I just finished getting my BHC back up to speed and when using a 5998 and a 6sn7, it seemed to struggle to sound good or to even get the tubes hot.
When using a plain jane 6080 and 12au7, everything is great and it sounds great, but the 5998 and 6sn7 made it gasp for air.
Does the 5998 require more POWER?
In my Incubus amp the 5998 glows so bright I don't need other lighting (I'm being sarcastic, but you get the drift). With the BHC, I'd be lucky to see a tiny sparkle of light.
Well everyone, the damn 5998 tube was bad. I tried it in the Incubus and had similarly poor results. I changed to a Thomson 6080 and the 6sn7, 12bh7, and 12au7 all worked fine.Measure the voltages in the tube sockets on both amps, and let us know.
Glowing too bright sometimes is not a good thing, tube could be overloaded and has reduced lifespan.
Well everyone, the damn 5998 tube was bad. I tried it in the Incubus and had similarly poor results. I changed to a Thomson 6080 and the 6sn7, 12bh7, and 12au7 all worked fine.
I happen to know that my 1-year-old was messing with this specific Chatham 5998 and maybe he dropped it or something. That sucks. Bye bye $100.
Regarding measuring the voltage in the Incubus, @Paladin79 has instructed me that it is a black box and I'm not to poke around...I don't want to void my warranty! (Actually, that amp just sounds so damn good I wouldn't alter it!)
Well everyone, the damn 5998 tube was bad. I tried it in the Incubus and had similarly poor results. I changed to a Thomson 6080 and the 6sn7, 12bh7, and 12au7 all worked fine.
I happen to know that my 1-year-old was messing with this specific Chatham 5998 and maybe he dropped it or something. That sucks. Bye bye $100.
Regarding measuring the voltage in the Incubus, @Paladin79 has instructed me that it is a black box and I'm not to poke around...I don't want to void my warranty! (Actually, that amp just sounds so damn good I wouldn't alter it!)
So as I continue to search for 6080 tubes I found another one that seems doubtful to me as I have only seen the GEC is greenish paint in the typical GEC font. So is this one in the attached picture a legit GEC 6080?
Thanks in advance.