[Slade01]

Ah yes, the snap, crackle, and pop that made me fear that the DV336 killed my HD6XX. Based on my limited experience, this happened with my Sylvania VT-99 (6F8G) and a NOS RCA '40s grey glass 6SN7GT. On the two occasions it happened with the VT-99, it was due to me plugging in my headphones ~2 mins after powering up the amp. With the NOS RCA, it was due to a bad tube (the arcing lights when turning the volume up and down looked pretty before I took that tube out) . Thereafter, I let the amp warm up ~10 minutes prior to plugging my cans into those old tubes. I read elsewhere that 6SN7GTA's and -GTB's should require less of a warm-up time. As for my HD6XX, they appear to fine (*knock on wood*). But yeah, the DV really make these cans sing.

Jesus. EXACTLY - I thought for sure my 6XX was toast and I'm still a little paranoid now with some PTSD to plug my headphones in too soon or to roll tubes right now as I dont want to mess with the mojo for the moment. Ive never had an issue, ive actually always left my headphones plugged in when turning it on off. That is no longer going to be the case. It was strange because it was giving me the rice krispies treatment snap crackling popping erratically even as i just touched the side of the dark voice unit when happening. Extra careful moving forward....

 

[JKDJedi]

Jesus. EXACTLY - I thought for sure my 6XX was toast and I'm still a little paranoid now with some PTSD to plug my headphones in too soon or to roll tubes right now as I dont want to mess with the mojo for the moment. Ive never had an issue, ive actually always left my headphones plugged in when turning it on off. That is no longer going to be the case. It was strange because it was giving me the rice krispies treatment snap crackling popping erratically even as i just touched the side of the dark voice unit when happening. Extra careful moving forward....

These tubes need some TLC, I found out an occasional cleaning of the pins helps out. I had my first arc of the tube last weekend and thought i destroyed my HD6XX the same, I was quick swapping/rolling preamp tubes and my guess some current was still in there and on restart... POP!!

 

[cddc]

Je...you guys scared me off with all these Crash! Boom! Bang! things.

Why so much arcing and popping recently...

I think I should hold off tube rolling temporarily until the safety god arrives...

 

[attmci]

Je...you guys scared me off with all these Crash! Boom! Bang! things.

Why so much arcing and popping recently...

I think I should hold off tube rolling temporarily until the safety god arrives...

U can use a couple of 6Bl7/6bx7 without problem on YOUR amp.

 

[cddc]

U can use a couple of 6Bl7/6bx7 without problem on YOUR amp.

Thank a lot for the recommendation, mate!

My initial hunch is that I might not be able to use 2*6BL7 in my BHC, because 2*6BL7 + 1*6SN7 = 2*1.5A + 0.6A = 3.6A current pull is exceeding the 3.5A limit of my PT3 power transformer.

Besides, I haven't really looked into 6BL7 tubes yet.

 

[JKDJedi]

Je...you guys scared me off with all these Crash! Boom! Bang! things.

Why so much arcing and popping recently...

I think I should hold off tube rolling temporarily until the safety god arrives...

Thank a lot for the recommendation, mate!

My initial hunch is that I might not be able to use 2*6BL7 in my BHC, because 2*6BL7 + 1*6SN7 = 2*1.5A + 0.6A = 3.6A current pull is exceeding the 3.5A limit of my PT3 power transformer.

Besides, I haven't really looked into 6BL7 tubes yet.

Not worth the bother, get a nice 6as7g, 7236, or 5998. Done.

 

[cddc]

Not worth the bother, get a nice 6as7g, 7236, or 5998. Done.

Sorry to hear your bad experience on 6BL7, buddy. On the 6080/6AS7G power tube side, there're really not too many good ones to choose from. The 6SN7/12AU7 driver tube is totally different, so many good ones and so many opinions, I am kinda getting lost but still exploring.

 

[attmci]

Thank a lot for the recommendation, mate!

My initial hunch is that I might not be able to use 2*6BL7 in my BHC, because 2*6BL7 + 1*6SN7 = 2*1.5A + 0.6A = 3.6A current pull is exceeding the 3.5A limit of my PT3 power transformer.

Besides, I haven't really looked into 6BL7 tubes yet.

Oh, yes, I did use the 12AU7s when I was playing with the twin 6BL7s on the BHC. You have to shield the transformer noise or use other way to avoid )). Moreover, I have to chose the correct pair of 6BL7s otherwise the results were no good.

Sorry, I understand this is not the BHC thread.

 

[JKDJedi]

Sorry to hear your bad experience on 6BL7, buddy. On the 6080/6AS7G power tube side, there're really not too many good ones to choose from. The 6SN7/12AU7 driver tube is totally different, so many good ones and so many opinions, I am kinda getting lost but still exploring.

This threads favorite is the Tung SOl 7236, 12au7, hear a lot of good things about the Genalex Gold Lion, and as far as 6SN7 tubes, any Tung Sol, Sylvania, RCA in the late 40's lower 50's....win.

 

[cddc]

Oh, yes, I did use the 12AU7s when I was playing with the twin 6BL7s on the BHC. You have to shield the transformer noise or use other way to avoid )). Moreover, I have to chose the correct pair of 6BL7s otherwise the results were no good.

Sorry, I understand this is not the BHC thread.

It's a close cousin to DV336, same tubes (I'm pretty sure) and same (?) OTL structure. That's why I am here...LOL

Talking about tubes here is okay, I think

I will spend some time to look into 6BL7 tubes

 

[cddc]

This threads favorite is the Tung SOl 7236, 12au7, hear a lot of good things about the Genalex Gold Lion, and as far as 6SN7 tubes, any Tung Sol, Sylvania, RCA in the late 40's lower 50's....win.

I got TS7236 long time ago, but yet to hear a 421A or 5998, I know they are really good, but their prices are just crazy...wait to see if there is some good opportunity to grab one. My main focus recently is on 6SN7 tubes, so many good ones...LOL

 

[JKDJedi]

I got TS7236 long time ago, but yet to hear a 421A or 5998, I know they are really good, but their prices are just crazy...wait to see if there is some good opportunity to grab one. My main focus recently is on 6SN7 tubes, so many good ones...LOL

And you got me interested in the 12Au7 now.... Lol, thanks! If you see a 6SN7 you think you might like post it up here for our 2 cents.

 

[cddc]

And you got me interested in the 12Au7 now.... Lol, thanks! If you see a 6SN7 you think you might like post it up here for our 2 cents.

Will do. To be honest, there're some good 12AU7s, like Telefunken/Mullard, but I think I prefer 6SN7 to 12AU7 in general, so don't waste too much of your time on 12AU7s IMHO.

 

[JKDJedi]

Will do. To be honest, there're some good 12AU7s, like Telefunken/Mullard, but I think I prefer 6SN7 to 12AU7 in general, so don't waste too much of your time on 12AU7s IMHO.

You just saved me some $$$ thanks. oh, and look for RCA grey glass, they're not that expensive but sound expensive... what tubes do you have?

 

[JKDJedi]

Not the momma...