Tube Rolling w/Crack

[Mucker]

Hi guys,

I've done a few upgrades to my Crack+Speedball.

I added the big Dayton caps and they seem to be excellent.

Tubes I've settled on for now are an ordinary Chatham 6AS7G and an RCA VT-231 6SN7G smokey. This adapter has worked great, the noise floor has been more than acceptable.

http://www.ebay.com/itm/ws/eBayISAPI.dll?ViewItem&item=320659633166&ssPageName=STRK:MEWAX:IT#ht_1080wt_793

Strictly listening to vinyl with a custom Technics SL-1210 and Beyer T90, T1, and Senn HD800. Results are spectacular for my needs.

The Technics is perfectly setup (Jelco SA-750D and Denon DL-301MK2) and the Crack noise floor is far below the groove noise from the vinyl which is minimal. I couldn't be happier with the result. Incredibly immersive.

[i luvmusic 2]

Anybody tried 6N6Pi for the CRACK will it work?

Thanks!

[Grainger49]

The 6N1P is a variant of the 6DJ8 that requires more heater current, not a lot more.  So it can't just drop in. The plate and cathode will need modifying.

But it is a fine sounding tube.

[i luvmusic 2]

 I wish i have that tube so i can try it out but what i found in my shoe box are 8 Pcs of 6N6Pi anyway i will give it a try.
Hopefully no magic smoke.

Thanks!

[Doc B.]

cross reference is ECC99. Here are PJ's thoughts on its use.

http://bottlehead.com/smf/index.php?topic=1112.msg8246#msg8246

[i luvmusic 2]

 The 6N6Pi works but not a plug n play,When i first plug it in this tube did not light up luckily i have a Desktop PS with a regulator set it to 6.3V and Voila it works surprisingly it's DEAD SILENT and sound nice too at least to my ears.

Thanks for all the reply.

[Paul Birkeland]

The 6N1P has about twice the amplification factor of the 12AU7, which makes it pretty unsuitable for the Crack.  It also has a different pinout, so you'd have to move some wires around to get it to even glow.  Without the Speedball and some fiddling, getting the plate voltage under 100V is going to come with a fair number of compromises. 

[Clmntbnr]

Hi !

I'm got my Crack recently, and I'm using it with a HD800.
Coming from a Violectric V100, this Crack is incredible ! Big thanks to Bottlehead for this wonderful product btw.
I'm totally new to tube rolling, and looking for tubes would show me how much sound change you can get out of it. I'm opened to any kind of sound signature, as I listen to Classical music, Progressive rock and Electro, and I find different requirements for different album mixes. A tube I really need right now though is one that would give more bottom end, and roll of some treble for quite agressive mixes and bass focused music.
Any suggestions ?
Also how come TS&C5998 goes for like 150$ on eBay and only 85$ on vacuumtubes.net ? (are they also used ?)
At last what is the difference between the RCA 5814 grey plate and black plate ?

Thanks a lot.

[i luvmusic 2]

 What are you guys thoughts about these 12AU7 new production tubes  from JJ and EH?

Thanks!

JJ ECC802-S / 12AU7 Gold
(https://forum.bottlehead.com/proxy.php?request=http%3A%2F%2Fwww.thetubestore.com%2FJJ-ECC802S-Gold-Audio-Vacuum-Tube.jpg&hash=ee7a7c6a05ad253269be9e009096bf7383fa12ef)

Electro-Harmonix 12AU7A / ECC82EH Gold
(https://forum.bottlehead.com/proxy.php?request=http%3A%2F%2Fwww.thetubestore.com%2FElectro-Harmonix-12AU7-ECC82-Gold-Tube.jpg&hash=aa530b41675727aa78f4db03f8fdbcb8082abc4f)

[Paul Birkeland]

What are you guys thoughts about these 12AU7 new production tubes  from JJ and EH?

The old stock tubes provided with the Crack are likely to sound a bit better.

[Chris65]

The old stock tubes provided with the Crack are likely to sound a bit better.

I got an Electro Harmonix with my kit?

[daltonljj]

The old stock tubes provided with the Crack are likely to sound a bit better.

True that i bought the Genalex gold lion just for fun to try it out ... now its sitting in my closet ... lol the stock does sound better

[Doc B.]

I got an Electro Harmonix with my kit?

That's because sometimes we can't get old stock tubes in fast enough to keep up with demand for the Crack.

[Paul Birkeland]

I got an Electro Harmonix with my kit?

They do sneak in from time to time. 

[i luvmusic 2]

Thank you guys!