Project Ember Tube Rolling
May 9, 2017 at 7:40 PM Post #2,941 of 3,354
Shameless plug: I just listed 2 NOS / NIB tubes that some found to be nice in their Ember. One is a Tungsram PCC88 / 7DJ8 and the other is a Tesla E88CC.
I have gone to dual 'single plate' tube setup for the most part.

After a very brief listen, the Tungsram is a very nice tube with lots of detail and no shrill brightness. The Tesla is nicely balanced w/o as much detail as the Tungsram at least IMO.
 
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May 10, 2017 at 7:28 PM Post #2,944 of 3,354
Yep, there is the cost of the adapter + 2 single plate tubes :thinking:
Which have you found offer the best... value? If I want the best sound stage an details, at the cost of some Bass SLAM and mid warmth, I tinkered with some Mazda 76's and I wasn't impressed with them on my Starlight
 
May 10, 2017 at 8:33 PM Post #2,945 of 3,354
Which have you found offer the best... value? If I want the best sound stage an details, at the cost of some Bass SLAM and mid warmth, I tinkered with some Mazda 76's and I wasn't impressed with them on my Starlight

Not a single plate and requires a different adapter, but I bought the Ken-Rad 6F8G for around $40 and the adapter costs $10. Great soundstage, detailed and clear. Bass is nice and accurate, and imo provides some slam as well. Take that with a grain of salt though, as I don't really have any headphones that are basshead types. I'd say my Ken-Rad 6F8G tube is a close second to my Zenith dual 6J5G tubes which cost me twice as much.

This is the adapter that I bought: http://www.ebay.com/itm/200905127802?_trksid=p2057872.m2749.l2649&ssPageName=STRK:MEBIDX:IT
 
May 11, 2017 at 10:16 AM Post #2,946 of 3,354
Not a single plate and requires a different adapter, but I bought the Ken-Rad 6F8G for around $40 and the adapter costs $10. Great soundstage, detailed and clear. Bass is nice and accurate, and imo provides some slam as well. Take that with a grain of salt though, as I don't really have any headphones that are basshead types. I'd say my Ken-Rad 6F8G tube is a close second to my Zenith dual 6J5G tubes which cost me twice as much.

This is the adapter that I bought: http://www.ebay.com/itm/200905127802?_trksid=p2057872.m2749.l2649&ssPageName=STRK:MEBIDX:IT

http://www.ebay.com/itm/1pc-gold-plated-6F8G-6C8G-TO-6SN7-6SL7-tube-converter-adapter/200905127802?_trksid=p2047675.c100005.m1851&_trkparms=aid=222007&algo=SIC.MBE&ao=2&asc=40130&meid=8b7e4ab047044caa8af70253ba618793&pid=100005&rk=1&rkt=6&mehot=pp&sd=302294690195

http://www.ebay.com/itm/Type-6F8G-K...963707?hash=item4d596f897b:g:GN0AAOSwjL5ZEX2W

Yea that price isn't bad! I'm curious to see how it sounds, and I'll take your word blindly, I hear a lot of positive about the KenRad Tubes, they are known for their SLAMMING bass, so we will see! The adapter will arrive to me, by the end of the month. An I'll have the tube in about a week
 
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May 11, 2017 at 11:22 AM Post #2,947 of 3,354
You may find the need for a Faraday cage or a ferrite bead to place on wire of the adapter when using the 6F8G in your Ember ll. I have a cage that I use with 6F8G and all the dual tubes.

I just received some 3 mm ferrite beads from China and need to see if one on the wire works as well as the cage.

I'll try the bead today and let you know if it is all you may need to run quiet!
 
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May 11, 2017 at 11:42 AM Post #2,948 of 3,354
You may find the need for a Faraday cage or a ferrite bead to place on wire of the adapter when using the 6F8G in your Ember ll. I have a cage that I use with 6F8G and all the dual tubes.

I just received some 3 mm ferrite beads from China and need to see if one on the wire works as well as the cage.

I'll try the bead today and let you know if it is all you may need to run quiet!

Please let me know what you find! I have 2-3 weeks before I can even use the Tube. I have it placed next to my Metal PC Tower, which isn't running wireless, I use Hard Cable Ethernet. But if the bead does cut down on the noise, I'll certainly buy one from you, if you can spare it
 
May 11, 2017 at 12:01 PM Post #2,950 of 3,354
Will do!

If it works, I'll just send you one. They were a whopping .20 cents each.
WHOA BOY! Thanks

Here's to hoping it does <.< I'm not super keen on building a Faraday cage, my wife will go nuts if she see's that thing >.>
 
May 11, 2017 at 12:48 PM Post #2,952 of 3,354
I hear ya..............I'm lucky as my bride thinks the Faraday cage looked kinda 'industrial cool'!
:sunglasses:
haha right, well the other thing is Space, I've got one of my headphone Stands behind it, but I can always Put it on top ;3 that'd be cool

Still I need to build it, I saw that you used Chicken wire and Electrical Tap, where'd you get the Chicken Wire from? I can get a LOT from my hardware store but no one sells just a little bit lol, you might have to sell me one xD and start your very own Faraday Cage biz
 
May 11, 2017 at 1:00 PM Post #2,953 of 3,354
Actually it is chicken wire and wire ties. I bought 1 foot from a roll that was either 24" or 36" tall. I'll see if I have enough for another cage and, if so, I can ship it with your ferrite bead, (if it works) no charge just the $1-$2 for postage.
 
May 11, 2017 at 1:07 PM Post #2,954 of 3,354
I found that for me personally, switching to a Bifrost Uber DAC fixed my noise issues, probably due to a better power supply. My old DAC uses an AC adapter. Now I don't have noise issues with any of my tubes. If I unplug the RCAs coming from the Bifrost though, I immediately hear noise again.
 
May 11, 2017 at 1:16 PM Post #2,955 of 3,354
I found that for me personally, switching to a Bifrost Uber DAC fixed my noise issues, probably due to a better power supply. My old DAC uses an AC adapter. Now I don't have noise issues with any of my tubes. If I unplug the RCAs coming from the Bifrost though, I immediately hear noise again.

Yea I never had a huge issue with noise, even on my starlight. Some of the tubes were pretty noisy, and actually without any RCAs plugged into my Ember it is a little noisy, still I have my Audio GD 10NFB10ES2 on a seperate PCi Powered USB Card, and then my entire rig is hooked into my Furman Power Conditioner. That PCi usb card really did clean up the output

but If you've got enough to make, an ship I'll happily cover the shipping costs
 
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