[ArmchairPhilosopher]

Assume this includes people that have a tester that doesn’t work? I wouldn’t know of anyone, just a hypothetical assumption.

'working' tube testers, to be precise...

No tester, or inoperable tester? That is the question — whether ’tis nobler in the mind to suffer the slings and arrows of perpetual inoperability, or to take arms against a sea of troubles, and, by fixing the damned thing, end them?

 

[Ripper2860]

'working' tube testers, to be precise...

'Working and calibrated' tube testers, to be more precise...

 

[Luckyleo]

For 12AU7 (I'm excluding 12AT7, 12AX7 because of their 60x, 100x gain) tubes:
.... an inexpensive start, RCA 'cleartop' 12AU7; further up, Sylvania 'yellow print' 12AU7; further still, Brimar CV4003, Lansdale 12AU7; nuts, Telefunken 'redtip, medical grade' ECC82; the cuckoo's nest, Telefunken G-73R.

Thank you very much Jonathan! I greatly appreciate your help. I'll let you know my thoughts as I move forward.

Leo

 

[Ripper2860]

Tonight's Jazz recommendation (w/ a big band flavor)...

 

[jsabini1]

Thank you Schiit Audio for the delivery of Yggdrasil. Powered on.

Nice pile of Schiit you got there! Kinda jealous

 

[Luckyleo]

Atomic Bob over at SBAF recommends the GE JAN 5670W for the Vali 3, and advises that WE 396A is not necessary for it.

I'm listening to the GE Jan 5670W on my Vali 3 for the first time. The one I'm listening to was packaged in 1985. I hear a lot more bass than I ever have heard on the Vali 3 before. It's definetly more pronounced. Not sure if I like it (it's only been 30 minutes or so) but it is a very noticeable change (for me). YMMV.

 

[Ableza]

Mike Moffat's comment re: 12AU7 tubes:

Tubes can vary in performance such as linearity, gain, and steady state levels which require matching. There are tubes designed for consumer audio such as 12AX7, 12AU7, and 12AT7s which are designed for garbage applications, such as portable radios, and portable record players. They feature awful performance, but are ubiquitous in audio design. I have harsher thoughts, but they can only be expressed elsewhere. Tubes that were designed for mission critical applications such as test equipment (6DJ8 families, ALL Western Electric audio tubes, etc.) are not only more reliable, but can far more linear as well. Mutual conductance tube checkers inform and test the parameters alluded to above to properly match tubes.

source: https://www.head-fi.org/threads/wha...n-robert-hunter.784471/page-609#post-14502056

 

[sam6550a]

Yeah, truly sorry about that Sam, but had to take care of business. But I'll be there for sure next week.

Looking forward to seeing you!

 

[sam6550a]

I do not know of him but I do have A GE tube on the way to try once my Vali 3 gets here. Knowing Bill’s supposed feelings for GE, I was just messing with him. I was looking for something to try till my 12AU7 and 6SN7 adapters arrive, then I will have choices.

In a Vali 2++, a Raytheon 6SN7 sounds very good----not as good as the GE JAN 5670W, but very smooth. YRMV.

 

[sam6550a]

'Working and calibrated' tube testers, to be more precise...

But of course--do you think that we are primitive testers?

 

[Balthazar B]

The technical term is "thiccc."

I've been told by one who knows that thiccc and deeeep is the best juxtaposition ever.

 

[StimpyWan]

Mine def isn't. It was pressed in Australia (Disctronics back in the day?) in 1991.
Still sounds awesome though

We were in Virginia. So our discs were definitely for the US market. Though, the UK had 2 Nimbus plants for quite some time.

 

[sixergixer]

The technical term is "thiccc."

Just like I like my hazy IPAs.

 

[Paladin79]

In a Vali 2++, a Raytheon 6SN7 sounds very good----not as good as the GE JAN 5670W, but very smooth. YRMV.

What about a Melz 1578? I may have tried one in a Vali but it was years ago and it took a while to find the great ones.

 

[jonathan c]

Don't you know those are (anti-theft camouflage) empty boxes ..?

..... the empty boxes invite theft - they are worth less when filled with GEs / ECGs .