Tea For One Posted March 14, 2008 Share Posted March 14, 2008 I have been trying to tone down my Univalve by using tubes with a lower dist rating than 12ax7's. I'm using pedals for gain in place of cranking my amp. I bought some Nos Rca black plate 5963's and they sound really sweet being pushed by a pedal. Do any of you guys have a fav lower gain tube you could recommend?? Thanks Link to comment Share on other sites More sharing options...
Bluesape Posted March 14, 2008 Share Posted March 14, 2008 Myles is your guy here. Never a DUH! moment! Well, almost never. OK, OK! Sometimes never! Link to comment Share on other sites More sharing options...
Tea For One Posted March 14, 2008 Author Share Posted March 14, 2008 Myles is your guy here. Yeh. I just saw the thread. Thanks bro. Link to comment Share on other sites More sharing options...
miroslav Posted March 14, 2008 Share Posted March 14, 2008 12AT7 will help...or a 12AU7 will really do the trick. miroslav - miroslavmusic.com "Just because it happened to you, it doesn't mean it's important." Link to comment Share on other sites More sharing options...
Tea For One Posted March 14, 2008 Author Share Posted March 14, 2008 12AT7 will help...or a 12AU7 will really do the trick. Right on. I have a shoe box full of tubes from over the years. I think I have a few clear top 12au7's from an Ampeg that I bought from a pawn shop a long time ago. Thanks alot. Link to comment Share on other sites More sharing options...
Michael Patrick Posted March 14, 2008 Share Posted March 14, 2008 I prefer 5751s for lowering the gain. They fall in between a 12AX7 and the AT7 or AU7. Here's a listing of the gain factor for various preamp tubes. Buy Tangy's latest CD, "Sorta Like Very Ultra" The Official Tangy Website Link to comment Share on other sites More sharing options...
Michael Patrick Posted March 14, 2008 Share Posted March 14, 2008 Knew I forgot something... 5963 is essentially equivalent to a 12AU7. It is also sometimes designated a ECC82. The only difference is that the 5963 has a maximum plate voltage of 250V while 12AU7 has a max of 330V. Buy Tangy's latest CD, "Sorta Like Very Ultra" The Official Tangy Website Link to comment Share on other sites More sharing options...
Tea For One Posted March 14, 2008 Author Share Posted March 14, 2008 I prefer 5751s for lowering the gain. They fall in between a 12AX7 and the AT7 or AU7. Here's a listing of the gain factor for various preamp tubes. Now that's what i'm talking about!! :) Thanks a ton dude. Link to comment Share on other sites More sharing options...
Rampdog Posted March 14, 2008 Share Posted March 14, 2008 5751's work sweet in my Classic 30... smoothed things out, creamier I would say... I can lean on it and still get a good growl........... I have Sovtec's in mine... If it ain't fun...why do it...? http://www.soundclick.com/bands/default.cfm?bandID=778394&content=music Link to comment Share on other sites More sharing options...
miroslav Posted March 14, 2008 Share Posted March 14, 2008 I prefer 5751s for lowering the gain. They fall in between a 12AX7 and the AT7 or AU7. Here's a listing of the gain factor for various preamp tubes. Yeah...the 5751 is another choice...though it doesn't drop the gain as dramatically as the AT or AU...but experimentation is in order. For the Univalve... You might try the lower gain tube in the V2/Driver stage....rather than the V1/Input stage. In other words...leave a 12AX7 in V1...and try an 12AU7 in V2. I've done that in my Flexi...used the AU in the third stage...and it does have an effect, but you can still get a nice push up front. Hey...that's the beauty of the THD amps...you can pretty much close you eyes and swap tubes out 'til the cows come home! :grin: miroslav - miroslavmusic.com "Just because it happened to you, it doesn't mean it's important." Link to comment Share on other sites More sharing options...
Michael Patrick Posted March 15, 2008 Share Posted March 15, 2008 I prefer 5751s for lowering the gain. They fall in between a 12AX7 and the AT7 or AU7. Here's a listing of the gain factor for various preamp tubes. Now that's what i'm talking about!! :) Thanks a ton dude. No problemo, glad to help. Buy Tangy's latest CD, "Sorta Like Very Ultra" The Official Tangy Website Link to comment Share on other sites More sharing options...
Hound Dog Posted March 15, 2008 Share Posted March 15, 2008 I'm looking to get a Univalve and I'm just curious what took you in the direction of using pedals for gain instead of the gain capabilities of the amp. From everything I've heard, the Univalve has tons of controllable gain at very reasonable volumes. Yum, Yum! Eat em up! Link to comment Share on other sites More sharing options...
Tea For One Posted March 18, 2008 Author Share Posted March 18, 2008 I'm looking to get a Univalve and I'm just curious what took you in the direction of using pedals for gain instead of the gain capabilities of the amp. From everything I've heard, the Univalve has tons of controllable gain at very reasonable volumes. It's one of the finest amps I have ever had for sure. And it has loads of amazing gain. Very touch sensitive, and cleans up nice when you roll back your volume knob. I'm just trying to clean it up a bit at higher levels. I just bought a Nos Siemens 6v6, a Philips 6l6, and the 5963's, so I'm gonna use a pedal to push the amp some. Im trying for a Fender vibe. I've been using a Sylvania 6ca7 (big bottle) and 2 Mullard 12xa7's for that "balls out" Marshall lead tone. I'm not sure I'll be able to clean it up as much as I want. But either way it's a tone machine. If you have the chance to get one, I'm sure you'll really dig it. Link to comment Share on other sites More sharing options...
Hound Dog Posted March 19, 2008 Share Posted March 19, 2008 Have you ever tried running it into a larger amp? Yum, Yum! Eat em up! Link to comment Share on other sites More sharing options...
miroslav Posted March 19, 2008 Share Posted March 19, 2008 I'm looking to get a Univalve and I'm just curious what took you in the direction of using pedals for gain instead of the gain capabilities of the amp. From everything I've heard, the Univalve has tons of controllable gain at very reasonable volumes. There is now ANOTHER ONE on eBay for $500 BIN...and there's also a YellowJacket and some spare tubes included in the deal! Move quick...the one that was there the other day for $500 BIN disappeared in like a few hours. http://cgi.ebay.com/THD-Univalve-Amplifier-w-YellowJacket-and-extra-tubes_W0QQitemZ110235333899QQihZ001QQcategoryZ10171QQssPageNameZWDVWQQrdZ1QQcmdZViewItem miroslav - miroslavmusic.com "Just because it happened to you, it doesn't mean it's important." Link to comment Share on other sites More sharing options...
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