Schiit Valhalla Tube Rolling thread.
Jan 5, 2023 at 2:46 PM Post #2,401 of 2,717
Right on. I had an old vintage EQ but it stopped working. Well... got some crazy humming screwing things up, so decided to pile up my Schiit even further and deeper...

For sure, I have a vintage one and though I haven't restored it, and though it functions fine, that particular setup is highly sensitive and totally picks up the noise floor it introduces - so I have a Loki doing the work instead (and I'm sure the Lokius is quieter)

I have found my Loki, and Lokius, both pick tons of EMI hum though, especially when closer to my Valhalla or power sections, so be mindful of placement

also, knobs > sliders
 
Jan 5, 2023 at 7:34 PM Post #2,402 of 2,717
I have a number of pairs of RFT ‘yellow print’ ECC81 tubes: rolling into a variety of tube h/p/a. Excellent and do not cost 💪 + 🦵. Do those in your Valhalla 2 have ‘halo’ getters or ‘foil’ getters?
Good question. How do I know the difference? Mine are also yellow. The top is quite dark, compared to the Mullard's or Brimar's.
 

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Jan 5, 2023 at 7:37 PM Post #2,403 of 2,717
For sure, I have a vintage one and though I haven't restored it, and though it functions fine, that particular setup is highly sensitive and totally picks up the noise floor it introduces - so I have a Loki doing the work instead (and I'm sure the Lokius is quieter)

I have found my Loki, and Lokius, both pick tons of EMI hum though, especially when closer to my Valhalla or power sections, so be mindful of placement

also, knobs > sliders
Yeah, I'll keep that in mind. I read on the Schiit website also about the need of a "rack" to minimize the issue... or simply move it away... let's see. Still somewhere out there, in transit... hehehe. Hopefully I'll get it in the next few days...
 
Jan 5, 2023 at 9:48 PM Post #2,404 of 2,717
Good question. How do I know the difference? Mine are also yellow. The top is quite dark, compared to the Mullard's or Brimar's.
You would have to take the tube out and look towards the top underside….beneath the inner silvery plating….
 
Jan 6, 2023 at 2:51 AM Post #2,405 of 2,717
I have a number of pairs of RFT ‘yellow print’ ECC81 tubes: rolling into a variety of tube h/p/a. Excellent and do not cost 💪 + 🦵. Do those in your Valhalla 2 have ‘halo’ getters or ‘foil’ getters?
How do the Halo getters compare to the foil? I ordered some for a friend since the foil getters are hard to find but they are in shipping limbo and I'm waiting for them to reappear after they make it through customs.
 
Jan 6, 2023 at 2:10 PM Post #2,406 of 2,717
I'll check later on tonight when I'm back home. I *think* they are halo... got them from The Tube Store (https://www.thetubestore.com/rft-ecc81-12at7).
No idea how it sounds compared to foil, but they do sound pretty sweet compared to the Mullard's CV4024's, which is my favorite. (Too bad these are getting expensive and hard to get), so I am super happy the RTF's are still affordable and available.
 
Jan 6, 2023 at 5:48 PM Post #2,407 of 2,717
How do the Halo getters compare to the foil?
Simply stated, to me if the RFT ECC81 (halo getter) tube is a “10”, the RFT ECC81 (foil getter) tube is a “12”. 🤷🏻‍♂️
 
Jan 6, 2023 at 6:32 PM Post #2,408 of 2,717
I'll check later on tonight when I'm back home. I *think* they are halo... got them from The Tube Store (https://www.thetubestore.com/rft-ecc81-12at7).
No idea how it sounds compared to foil, but they do sound pretty sweet compared to the Mullard's CV4024's, which is my favorite. (Too bad these are getting expensive and hard to get), so I am super happy the RTF's are still affordable and available.
Here is the tube from below.. :) yep, halo it is... I'm quite happy with the way it sounds, so I can only imagine how wicked the foil version is...
Happy Friday, folks!
 

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Jan 7, 2023 at 10:55 AM Post #2,409 of 2,717
Simply stated, to me if the RFT ECC81 (halo getter) tube is a “10”, the RFT ECC81 (foil getter) tube is a “12”. 🤷🏻‍♂️
My amp only goes to 11. Damnit. 🤣
 
Jan 7, 2023 at 11:19 AM Post #2,410 of 2,717
My amp only goes to 11. Damnit. 🤣
1.) A Manson “11” equals everyone else “♾”
2.) “11” is “12” too much for Captain & Tennille 🙉.
 
Jan 8, 2023 at 6:33 PM Post #2,411 of 2,717
Simply stated, to me if the RFT ECC81 (halo getter) tube is a “10”, the RFT ECC81 (foil getter) tube is a “12”. 🤷🏻‍♂️
Man, this talk about RFT foil getters made me dig out my 12au7. Unprovoked glass crack!! Damn you, 2023!!:disappointed:
 
Jan 8, 2023 at 8:34 PM Post #2,412 of 2,717
Man, this talk about RFT foil getters made me dig out my 12au7. Unprovoked glass crack!! Damn you, 2023!!:disappointed:
:frowning2: hope you have spares... :)
How's the volume like? Aren't 12AU7 "lower" on the volume? Compared to 12AT7 & 12AX7?
 
Jan 8, 2023 at 10:13 PM Post #2,413 of 2,717
:frowning2: hope you have spares... :)
How's the volume like? Aren't 12AU7 "lower" on the volume? Compared to 12AT7 & 12AX7?
Spares? Pffft! Having spares is like reading the manual.
12au7 is lower gain. Honestly, I've never tried the at7/ax7 types. I'm using a Vali2 BTW, I just lurk here looking for tube ideas
 
Jan 8, 2023 at 10:40 PM Post #2,414 of 2,717
Spares? Pffft! Having spares is like reading the manual.
12au7 is lower gain. Honestly, I've never tried the at7/ax7 types. I'm using a Vali2 BTW, I just lurk here looking for tube ideas….
….in that case, try Raytheon CK 5670 ($$) or Western Electric 396A / 2C51 ($$$$). [The dollar signs are especially relative to Vali 2 price 😜.]
 
Jan 9, 2023 at 12:02 PM Post #2,415 of 2,717
….in that case, try Raytheon CK 5670 ($$) or Western Electric 396A / 2C51 ($$$$). [The dollar signs are especially relative to Vali 2 price 😜.]
If I can find a WE for less than I paid for my amp, I'm in. Haven't heard that Raytheon mentioned before:thinking:. Since we're talking that family, I have a Tesla something-or-other (they have weird naming) that doesn't completely half suck
 

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