[Rowethren]

I suspect you are probably right, I was suggested to test the heater pins with a multi meter so I will do that when I get home but I am guessing I am schiit out of luck. I might try contacting the seller though as they were sold as NOS and to last less than 50 hours before failure doesn't sound like NOS to me!

 

[ilikepooters]

heaters are connected in series through pins 7 and 8, it it's not glowing there's a break somewhere, possibly burned out filament.

It is possible a bad solder joint in pin 7 or 8, this will stop the whole tube lighting up but can be fixed with a hot soldering iron.

multimeter continuity test will confirm if open circuit.

 

[ilikepooters]

Duplicate post

 

[Scrith]

So after getting a bit familiar with tubes (thanks Lyr3), I've circled back to solid state and a little thing called CanOpener Studio by Goodhert.

I've been using CanOpener for awhile and I agree that it really opens most headphones up.

In addition to effects like what CanOpener gives you (which can vary from one music style to the next, so I tend to run with minimal modifications, or just turn it on and off as needed with JRiver's easy plug-in interface), I think a good EQ setup (I prefer parametric) that is carefully tuned to the frequency response of your speakers or headphones (and then your ears) is absolutely essential to getting the most from ffrom your system. I've blind tested a few people with this (you have to be certain to match output levels for such a test) and they all have noticed a substantial improvement.

I believe proper setup of your software is as important (if not more so) than the differences between any two tubes I've heard. Tubes are a great way to take your enjoyment a step further, of course...but don't forget the basics of audio, and the advantages of having a digital version of the audio output available, enabling extremely helpful customization of the sound for your environment and ears.

 

[Rowethren]

Infinite resistance between 7 and 8 assuming they are the 2 anti clockwise of the insertion notch... Ah well it's dead. I will see what the seller says about, a NOS tube should last a damn site longer than this one did!

 

[tafens]

Just ordered my fourth (unique) tube, a Psvane HIFI UK-6SN7 (clear glass, wanna see the glow!) for $47 delivered. That’s excluding import fees and tax of course.

When it arrives I’ll pit against the stock Tung-Sol option which I like a lot. Being a bit pricier than the Tung-Sol I hope I hear the difference!

 

[Zachik]

Just ordered my fourth (unique) tube, a Psvane HIFI UK-6SN7 (clear glass, wanna see the glow!) for $47 delivered. That’s excluding import fees and tax of course.

I am curious - where did you find it for this price?

 

[ilikepooters]

Just ordered my fourth (unique) tube, a Psvane HIFI UK-6SN7 (clear glass, wanna see the glow!) for $47 delivered. That’s excluding import fees and tax of course.

When it arrives I’ll pit against the stock Tung-Sol option which I like a lot. Being a bit pricier than the Tung-Sol I hope I hear the difference!

If from China there probably won't be any import fees, they're good at marking down value on customs forms Wish american sellers would do that.

 

[tafens]

I am curious - where did you find it for this price?

eBay, from a seller called psvanevalve. I realise it’ll probably not have the best matched sections and all, but should give me a general idea of the sound I hope.

 

[tafens]

If from China there probably won't be any import fees, they're good at marking down value on customs forms Wish american sellers would do that.

I would hope so, but eBay sellers have been painfully good at marking the actual value lately.

But, even if they would mark it down, the Swedish postal service (PostNord) will always add a $10 import handling fee to any commercial package from outside of the EU.. so in the end it will most probably cost me something like $70 ($47 + 25% vat + $10 import fee).

 

[Yviena]

eBay, from a seller called psvanevalve. I realise it’ll probably not have the best matched sections and all, but should give me a general idea of the sound I hope.

You probably don't need to worry about matched sections as much with new production psvane tubes, i bought my UK-6sn7 from mala audio in norway, a bit more expensive but atleast i don't have to wait a month for it to arrive.

Hmm the 6N8S MELZ sounds interesting probably a contender for Psvane 6sn7, i found some for 30$ on ebay so i think i'll order one or two.

 

[tafens]

You probably don't need to worry about matched sections as much with new production psvane tubes, i bought my UK-6sn7 from mala audio in norway, a bit more expensive but atleast i don't have to wait a month for it to arrive

How would you say it sounds campared to the new production Russian Tung-Sol 6SN7 (if you have it)?

 

[Yviena]

How would you say it sounds campared to the new production Russian Tung-Sol 6SN7 (if you have it)?

Better depth/width, and instrument seperation is what i immediately notice with the uk-6sn7, bass is quite enjoyable too with a HD800 which i always found a little lacking in the bass impact.

 

[RestoredSparda]

I'm curious if you wise people can confirm this pair of 2 hole bad boys is a good buy? They seem to look legit and tested well.

https://www.ebay.com/itm/PAIR-Tests...937939?hash=item2877b36753:g:0BUAAOSwkAxcNeGU

 

[Ripper2860]

The price seems reasonable for a pair and they check-off all of the attributes required to be legit 2-hole BB's. They measure well and are from a solid seller with a good reputation, as well.

(I can recommend this seller as I've purchased tubes from this seller in the past.)