New 6SN7 tube available

RPM123 · « **on:** 19 Jul 2015, 04:51 pm »

Cool looking tube. Who will be the first one to give it a try? Would look great in an open chassis!

link:

http://psvanetube.com/wordpress/store/products/treasure-globe-6sn7-se-pair-gf-limited-special-edition/

JakeJ · « **Reply #1 on:** 19 Jul 2015, 05:28 pm »

Wow, it would cost me $1500 for a replacement quad for my monoblock amps. Guess I'll stick with the ones I can afford.

Guy 13 · « **Reply #2 on:** 19 Jul 2015, 05:33 pm »

Hi all,
I rarely pay more than 45 USD (each) for this type of tube.

Guy 13

RPM123 · « **Reply #3 on:** 19 Jul 2015, 05:36 pm »

Quote from: JakeJ on 19 Jul 2015, 05:28 pm

Wow, it would cost me $1500 for a replacement quad for my monoblock amps. Guess I'll stick with the ones I can afford.

Actually, that is $375 for the pair, so a quad would be "only" $750.

RPM123 · « **Reply #4 on:** 19 Jul 2015, 05:37 pm »

Oops, my bad, did not factor in that you have mono blocks!

FullRangeMan · « **Reply #5 on:** 19 Jul 2015, 06:29 pm »

Gulp! 375 bucks for two small tubes,
and they are not even military stuff.
I pay $1.90 each for Russian military.

JakeJ · « **Reply #6 on:** 19 Jul 2015, 09:05 pm »

Quote from: RPM123 on 19 Jul 2015, 05:37 pm

Oops, my bad, did not factor in that you have mono blocks!

You were correct the first time. Each VAC PA-160 amp requires two 6SN7, so four at $187.50 USD each totaling $750 is still too rich for my blood. Not sure they'd fit because of the balloon shape either. Oh well, guess I'll just have to wonder.

ElliottStudio · « **Reply #7 on:** 20 Jul 2015, 01:57 am »

We all have to wonder what the heck they're thinking!

FullRangeMan · « **Reply #8 on:** 20 Jul 2015, 11:17 am »

Quote from: ElliottStudio on 20 Jul 2015, 01:57 am

We all have to wonder what the heck they're thinking!

In my country this is know by only 3 words as:
Se colar colou.
Something like:
If they accept this high price, the price remains high, if not we got down.

sfox7076 · « **Reply #9 on:** 20 Jul 2015, 01:03 pm »

Looks like they tried to duplicate the top structure of the Tung Sol Round Plate. Wonder if it replicates that sound. Not a bargain by any means. And will never fit where I would need it to go, but interesting none the less.

Shawn

KR500 · « **Reply #10 on:** 20 Jul 2015, 04:34 pm »

Thanks for the post
I was thrilled to be able to pick up a quartet of NOS Raytheon 6SN7's from a local Craigs List Ad a couple years ago for $40 .

DaveC113 · « **Reply #11 on:** 20 Jul 2015, 04:39 pm »

I bet they won't fit in half the gear out there as no 6SN7 has such large glass.

It also looks like the mica plates don't actually support the internals, these may not ship very well....

JakeJ · « **Reply #12 on:** 20 Jul 2015, 05:05 pm »

Good point, DaveC113. Since the mica only serves as a spacer and element holding device I wonder if microphonics are a problem with this design. Unless the mica provide some damping effect.

Here I am wondering again.

RPM123 · « **Reply #13 on:** 20 Jul 2015, 08:02 pm »

Quote from: JakeJ on 20 Jul 2015, 05:05 pm

Good point, DaveC113. Since the mica only serves as a spacer and element holding device I wonder if microphonics are a problem with this design. Unless the mica provide some damping effect.

Here I am wondering again.

It would take a very large Herbie's damping ring to fit around that tube to address any microphonics!

rajacat · « **Reply #14 on:** 20 Jul 2015, 08:26 pm »

Quote from: RPM123 on 20 Jul 2015, 08:02 pm

It would take a very large Herbie's damping ring to fit around that tube to address any microphonics!

For that price there should be zero microphonics.

FullRangeMan · « **Reply #15 on:** 20 Jul 2015, 09:12 pm »

For this price they would last a century.
Too much profit.

Fourlegsgood · « **Reply #16 on:** 9 Sep 2015, 06:12 am »

Quote from: RPM123 on 19 Jul 2015, 04:51 pm

Cool looking tube. Who will be the first one to give it a try? Would look great in an open chassis!

link:

http://psvanetube.com/wordpress/store/products/treasure-globe-6sn7-se-pair-gf-limited-special-edition/

Well, I have ordered a pair of these for use in my preamp. Previously I have been using psvane cv181 TII but got fed up with the poor quality control and microphonics. Delivery is expected next week so I will post my findings after that.

Big Red Machine · « **Reply #17 on:** 9 Sep 2015, 02:15 pm »

When you research the thread subject tube you will find a review on it that calls out a good tube that was replaced (6SN7 Audio Tubes Gold Pin with Brass Base NOS). I bought that brass base tube on Ebay for $110 for a pair and really like them. Start with Grant Fidelity website. I'm trying to go back in time to find the review.

So instead of buying the new toy I bought a tube that was thought to be king until this new round globe showed up and went for second place and scored pretty well!

rockadanny · « **Reply #18 on:** 9 Sep 2015, 02:17 pm »

Fourlegsgood - your first post ... Welcome to AC!

What gear are you putting these in?

Bill Baker · « **Reply #19 on:** 9 Sep 2015, 03:50 pm »

I wonder how they compare to Ming-Da's version they come out with a few years back. They were not bad tubes but not sure they were good enough to be $85 tubes. They did look pretty cool in an open chassis. It will be interesting to see what people comment about these new tubes. Especially in regard to microphonics.