Preamp Tubes? - Who, What, When, Where, Why, and How? - Page 55

RiverRatt · 10-08-2009, 01:51 AM

Quote:

Originally Posted by Bobbo

That's one of greengirl's pics. I recognize the background. Wish I had won them, I'll bet they're nice.

RiverRatt · 10-08-2009, 02:00 AM

Quote:

Originally Posted by MartyStrat54

[COLOR="DeepSkyBlue"]Oh, BTW, this is a 6CA7 Sylvania Fat Boy and a "Mullard" EL34 in one of my 602's.

Did anyone know about the Groove Tube 6CA7's that were made in the USA for a brief period? They were supposedly made on Sylvania equipment. This is the LAST time I'm going to ask about these tubes - I promise.

Quote:

So this is sort of fascinating. That the tube on the positive side of the power cycle is like V1 and the characteristics of the negative side of the power cycle is like V2. The negative side adds to the power, but the flavor is stronger coming from the tube first in line with the power cycle.
How's that for some tube info?

I'm not buying into this, mainly because I can't afford to buy into this. I could tell you what a cheap Russian EL34 sounds like paired with an RFT.

RiverRatt · 10-08-2009, 03:08 AM

Hey Marty, you might want to get that Amperex warmed up. I didn't find any tubes during this Saturday's search, but I found a guy who has a "thrift store" (indoor junkyard) and he was cleaning his place out Saturday. I found TWO DOD R-845 single rack space spring reverb units, with part of the rack still attached. I picked up the both of them for $10, used a little contact cleaner on them, and they are noise-free and swwweeeeetttt. I think I can turn a slight profit on them. What's next after Amperex?

MartyStrat54 · 10-08-2009, 01:00 PM

Quote:

Originally Posted by riverratt

hey marty, you might want to get that amperex warmed up. I didn't find any tubes during this saturday's search, but i found a guy who has a "thrift store" (indoor junkyard) and he was cleaning his place out saturday. I found two dod r-845 single rack space spring reverb units, with part of the rack still attached. I picked up the both of them for $10, used a little contact cleaner on them, and they are noise-free and swwweeeeetttt. I think i can turn a slight profit on them. What's next after amperex?

***telefunken***

MartyStrat54 · 10-08-2009, 01:15 PM

Quote:

Originally Posted by RiverRatt

Did anyone know about the Groove Tube 6CA7's that were made in the USA for a brief period? They were supposedly made on Sylvania equipment. This is the LAST time I'm going to ask about these tubes - I promise.

I'm not buying into this, mainly because I can't afford to buy into this. I could tell you what a cheap Russian EL34 sounds like paired with an RFT.

Two things. First, is the Groove Tube 6CA7's the one where the Sylvania equipment was shipped over to Russia? Supposedly the tubes were made in the early 90's (since Sylvania was bought out by Philips in 1984 and Philips made the tubes until 1988). Although these tubes were made on Sylvania equipment, they were never regarded as being as good as a Sylvania Fat Boy 6CA7. I will try to do a little more research on this to see if I can unravel it.

Second. I'm am not saying that there is this dramatic change in sound when you switch two different power tubes around. However, there is a change and when I reversed the tubes the clean channel sounded different. Not a huge change, but different. Some people might not be able to hear any difference. My main point is overall, the amp sounds different with a 6CA7 and an EL34 compared to the amp with two EL34's.

MartyStrat54 · 10-08-2009, 01:21 PM

Quote:

Originally Posted by RiverRatt

That's one of greengirl's pics. I recognize the background. Wish I had won them, I'll bet they're nice.

Yeah, all of his pic's are rip-off's. He posted some pic's on this thread a long time ago and he posted the same pics again. Flick'OFlash thought he was funny and let him post a whole bunch of stuff and then I got a hold of ALEX about it. Alex took all of his posts off and I had hoped he would move on. He has been thrown off several forums. I already talked to Joe about it. If it continues I will PM you with our solution.

MartyStrat54 · 10-08-2009, 02:07 PM

Quote:

Originally Posted by RiverRatt

Did anyone know about the Groove Tube 6CA7's that were made in the USA for a brief period? They were supposedly made on Sylvania equipment. This is the LAST time I'm going to ask about these tubes - I promise.

Did some far reaching online searching and here are some bits I came up with. First piece is out of MIX magazine (online). According to them, the 6CA7's were made on GE equipment in the USA and the tube may of had a glitch (bug) in it.

About the oddest tube of the bunch was the GT-6CA7-GE. Newly manufactured on former GE equipment (in the U.S.), as is the GT-6L6-GE, it had an odd overdrive artifact, a bug that became obvious during the bench tests. Interestingly enough, an NOS GE 6L6 did not do this, but an NOS Sylvania version did, so it's obviously not a new “bug,” but could very well be an amp/tube idiosyncrasy. This is a good excuse to introduce and explain the tests that generated the pictures.

The GTGE is still being made and was the tube used in VH I and VH II.

The GT6CA7GE is the classic American-style EL34 tube made in the exact likeness of the famed General Electric 6CA7 tube of the 60's. This was the tube we sold to Eddie Van Halen for his Marshalls used on the first two Van Halen albums (often cited for his best tone on record).

In 1998, Groove Tubes purchased from Richardson the original critical materials and machines GE used to produce both the GE6L6 and GE6CA7 (aka:EL34), along with the original production processing formulas. In other words, Groove Tubes was able to acquire the the recipe, the original ingredients and the kitchen too! The adventure had begun.

Next, several original GE vendors were enlisted to faithfully reproduce many of the internal components. For example, the company who made the original mica insulators has provided the identical part, on new tooling from original GE drawings. Also, the special plate designs are made on the same vintage 4 slide machines and are identical to the original parts, using the original GE plate material that is no longer in production. GT was able to purchased enough original GE plate material for many years of production. This special multi layered alloy formula appears a soft dull gray after heat processing and give this tube it's soft, warm tone...as well as contributing to it's superior power performance. While currently, some of the processing is located "off site" and will continue there until all processing clearances can be arranged for the San Fernando factory, eventually plans are to do all processing under the GT roof.

However, the internal content is now more than 90% USA origin (Incidentally, this content ratio is similar to to the original content of the GE tube as GE also used off site processing). It has been almost 4 years of hard work and significant financial investment in tooling and setup to be able to release the final product, but the wait was worth it.

I had heard that GT was actually producing a 12AX7 in California. Apparently, they have been making a copy of a GE 6L6 and GE 6CA7 as well. This article is dated 1998. A lot can happen since then. I do know one thing, these tubes are available from GT regardless of where they are being made.

Very interesting.

Bobbo · 10-08-2009, 03:22 PM

Quote:

Originally Posted by RiverRatt

That's one of greengirl's pics. I recognize the background. Wish I had won them, I'll bet they're nice.

These Mullard's now reside in my 50 watt Marshall .. They sound good too !!!!!!

Bobbo · 10-08-2009, 03:23 PM

Quote:

Originally Posted by MartyStrat54

Yeah, all of his pic's are rip-off's. He posted some pic's on this thread a long time ago and he posted the same pics again. Flick'OFlash thought he was funny and let him post a whole bunch of stuff and then I got a hold of ALEX about it. Alex took all of his posts off and I had hoped he would move on. He has been thrown off several forums. I already talked to Joe about it. If it continues I will PM you with our solution.

I do not own everything I post pictures of ... But the majority of the tubes I post I own !!!

MartyStrat54 · 10-08-2009, 07:09 PM

Here is my combination 2000th post and 55th Birthday bash on the Marshall Forum. Let the bells ring and the horns blow.

She became one with the cake. Oh well. Dig in.

Big 2000th!!!

55 on October 9!!! Still kicking!!!

Plenty of cyber cake and beer. I'm having a Wild Turkey and Coke. Help yourself and the bathroom is down the hall on the left.

Yee Haw!!! Rock and Roll will never die!

:finger sx:

solarburnDSL50 · 10-08-2009, 07:31 PM

Hell Yeah Marty!!!!!

Happy B-Day! I wish that girl was there so you could lick the frosting off hehe!

My cyber drink is Crown Royal...straight of course.

In reality I'm having a nice tall glass of milk!

Let the partying continue with Gusto!

I got to crank my Marshall earlier. My salute to 2000 and your B-day!

Now if I could just get us some naughty girls...

You Tube

RiverRatt · 10-08-2009, 08:02 PM

I wanna lick the icing!

I'll lift a cold one in your direction. I'm making jambalaya and sipping on a New Belgium 1554. Crawfish and beer - it's like they were made for each other.

About the GTGE, I think they stopped making them in 2003 when they started working on the XF2 reissue. I could be wrong.

RiverRatt · 10-08-2009, 08:11 PM

Quote:

Originally Posted by MartyStrat54

***telefunken***

The Telefunken should be in tomorrow's mail.

ken361 · 10-08-2009, 08:28 PM

happy b-day! man

MartyStrat54 · 10-08-2009, 08:34 PM

Thanks RATT, thanks KEN. I keep getting older, but I still do stupid things. Go figure.

MartyStrat54 · 10-08-2009, 08:39 PM

Quote:

Originally Posted by RiverRatt

I wanna lick the icing!

I'll lift a cold one in your direction. I'm making jambalaya and sipping on a New Belgium 1554. Crawfish and beer - it's like they were made for each other.

About the GTGE, I think they stopped making them in 2003 when they started working on the XF2 reissue. I could be wrong.

I haven't really ever followed GT. I just didn't like their marketing approach. If they had GE equipment and all the necessary vendors, why did they stop making their 6L6GE and 6CA7GE? That's dumb. Work on those two until you get it right. However, they jump off in another direction and think they are going to duplicate an xf2. That'll be the day.

Marty reaches over to the table and takes a shot of Wild Turkey with a water chaser.

solarburnDSL50 · 10-08-2009, 08:41 PM

belch!

MartyStrat54 · 10-08-2009, 08:43 PM

Quote:

Originally Posted by RiverRatt

I wanna lick the icing!

I'll lift a cold one in your direction. I'm making jambalaya and sipping on a New Belgium 1554. Crawfish and beer - it's like they were made for each other.

Aren't you a little far north for the cajun cooking? I mean Arkansas does it, but Tennessee? The thing that grosses a lot of people out is the cooked poop in the tails. It looks like mustard and gets all over your mouth. Hmmm! Crayfish poop...mighty tasty. Oh and for you people getting ill, we have steak on the grill.

MartyStrat54 · 10-08-2009, 08:46 PM

Quote:

Originally Posted by solarburnDSL50

belch!

I was just going to do that and I will...

Beeelch!

solarburnDSL50 · 10-08-2009, 08:47 PM

Quote:

Originally Posted by MartyStrat54

I was just going to do that and I will...

Beeelch!

Did you like your dancing girls up above?

MartyStrat54 · 10-08-2009, 08:51 PM

Quote:

Originally Posted by solarburnDSL50

Did you like your dancing girls up above?

Yeah that saved me from having to drive over to St. Joe (I'll do that tomorrow when I really party down. Might even go to one of the hot blues bars in KC and hang.

Yeah I just pour me a drink and hit the play button on the video and I feel like I in Phoenix at the Cheetah Men's Club.

racko7566 · 10-08-2009, 09:14 PM

Happy B-Day Marty, remember, your not old, your N.O.S.

MartyStrat54 · 10-08-2009, 09:51 PM

Quote:

Originally Posted by racko7566

Happy B-Day Marty, remember, your not old, your N.O.S.

Thanks RACKO.

jupiter89 · 10-08-2009, 10:15 PM

Happy birthday Marty. Gosh I wish I was only 55 lol. The dancing babes got ALL my tubes hot !

RiverRatt · 10-08-2009, 10:23 PM

Quote:

Originally Posted by MartyStrat54

Aren't you a little far north for the cajun cooking? I mean Arkansas does it, but Tennessee? The thing that grosses a lot of people out is the cooked poop in the tails. It looks like mustard and gets all over your mouth. Hmmm! Crayfish poop...mighty tasty. Oh and for you people getting ill, we have steak on the grill.

I grew up watching Justin Wilson's cooking show on public TV. I would probably be laughed out of Louisiana for my Jambalaya. I use nice, clean Chinese crawfish tails from Walmart, and I dose it liberally with Yucatan Sunshine habanero sauce. We've got some real cajuns around here, too. Memphis is just up the river from the Big Easy. A lot of people displaced by Katrina moved up here.

I've never used a Mullard XF2, but I do have a pair of the GTEL34M's. They were my favorites until I got the RFTs. They aren't a bad sounding EL34.

***Adwex*** · 10-08-2009, 10:24 PM

Happy Birthday Marty!
I still have some of this left after a recent visit to the craft beer section, think I'll crack one open in your honor.

RiverRatt · 10-08-2009, 10:26 PM

Quote:

Originally Posted by MartyStrat54

Thanks RATT, thanks KEN. I keep getting older, but I still do stupid things. Go figure.

Listen to Neil Young's "Fuckin' Up". It's my theme song.

Procter2812 · 10-09-2009, 04:52 AM

Happy birthday Marty!... have a good un!!!

MartyStrat54 · 10-09-2009, 01:52 PM

Quote:

Originally Posted by Adwex

Happy Birthday Marty!
I still have some of this left after a recent visit to the craft beer section, think I'll crack one open in your honor.

Thanks ADWEX. I love craft beer. In fact, about five or six years ago, I completely stopped drinking Bud, Coors and Miller. I just felt like they didn't cut it. In Phoenix, my favorite micro brewery/bar had one called "Three peat Wheat." A triple brewed wheat pilsner. That went down like mountain water. In KC, I go to a brew house bar that has one called "Moonbeam." It's a honey wheat lager that is mighty good.

It's good to know that you are a man of sophisticated tastes.

thefyn · 10-09-2009, 01:55 PM

What is this thing all about:

Soldano Tube Amp Hot Mod HotMOD for Marshall Amps - eBay (item 170391667714 end time Oct-10-09 03:06:50 PDT)

10-08-2009, 03:08 AM	#1623 (permalink)
RiverRatt Senior Member Join Date: May 2008 Location: Between Memphis and Nashville Posts: 517	Re: Preamp Tubes? - Who, What, When, Where, Why, and How? Hey Marty, you might want to get that Amperex warmed up. I didn't find any tubes during this Saturday's search, but I found a guy who has a "thrift store" (indoor junkyard) and he was cleaning his place out Saturday. I found TWO DOD R-845 single rack space spring reverb units, with part of the rack still attached. I picked up the both of them for $10, used a little contact cleaner on them, and they are noise-free and swwweeeeetttt. I think I can turn a slight profit on them. What's next after Amperex?

10-08-2009, 07:09 PM	#1630 (permalink)
MartyStrat54 Senior Member Join Date: Feb 2009 Location: Formerly Phoenix, now north of KC Posts: 2,583	Re: Preamp Tubes? - Who, What, When, Where, Why, and How? Here is my combination 2000th post and 55th Birthday bash on the Marshall Forum. Let the bells ring and the horns blow. She became one with the cake. Oh well. Dig in. Big 2000th!!! 55 on October 9!!! Still kicking!!! Plenty of cyber cake and beer. I'm having a Wild Turkey and Coke. Help yourself and the bathroom is down the hall on the left. Yee Haw!!! Rock and Roll will never die! :finger sx: __________________ MARTY 2009 Gibson Explorer-Hell Raising Machine 1989 Fender Strat Plus USA 2008 Fender Tele USA 2004 Schecter Elite w/DiMarzio's TSL100 with custom 4x12 cab. TSL122 with Man 'O War Speakers. TSL602 #1 with JBL D123 Speakers and 602 #2 with Altec 417 Speakers. "Oh so sweet my friends." DSL401 #1 with Red Fang Speaker and 401 #2 with JBL D123 Speaker. Tubes: Let's just say they are NOS that kick ass.

10-08-2009, 08:02 PM	#1632 (permalink)
RiverRatt Senior Member Join Date: May 2008 Location: Between Memphis and Nashville Posts: 517	Re: Preamp Tubes? - Who, What, When, Where, Why, and How? I wanna lick the icing! I'll lift a cold one in your direction. I'm making jambalaya and sipping on a New Belgium 1554. Crawfish and beer - it's like they were made for each other. About the GTGE, I think they stopped making them in 2003 when they started working on the XF2 reissue. I could be wrong.

10-08-2009, 08:28 PM	#1634 (permalink)
ken361 Senior Member Join Date: Aug 2009 Posts: 124	Re: Preamp Tubes? - Who, What, When, Where, Why, and How? happy b-day! man __________________ tone slut JVM 205h/1960b cab Peavey wolfgang Mim fender strat/hot rail pup Epiphone Les paul/burstbucker George L cables Mxr pedals

10-08-2009, 08:34 PM	#1635 (permalink)
MartyStrat54 Senior Member Join Date: Feb 2009 Location: Formerly Phoenix, now north of KC Posts: 2,583	Re: Preamp Tubes? - Who, What, When, Where, Why, and How? Thanks RATT, thanks KEN. I keep getting older, but I still do stupid things. Go figure. __________________ MARTY 2009 Gibson Explorer-Hell Raising Machine 1989 Fender Strat Plus USA 2008 Fender Tele USA 2004 Schecter Elite w/DiMarzio's TSL100 with custom 4x12 cab. TSL122 with Man 'O War Speakers. TSL602 #1 with JBL D123 Speakers and 602 #2 with Altec 417 Speakers. "Oh so sweet my friends." DSL401 #1 with Red Fang Speaker and 401 #2 with JBL D123 Speaker. Tubes: Let's just say they are NOS that kick ass.

10-08-2009, 09:14 PM	#1642 (permalink)
racko7566 Member Join Date: Aug 2009 Location: Lancaster, Pa. Posts: 72	Re: Preamp Tubes? - Who, What, When, Where, Why, and How? Happy B-Day Marty, remember, your not old, your N.O.S.

10-08-2009, 10:15 PM	#1644 (permalink)
jupiter89 Member Join Date: Sep 2009 Location: Florida Posts: 38	Re: Preamp Tubes? - Who, What, When, Where, Why, and How? Happy birthday Marty. Gosh I wish I was only 55 lol. The dancing babes got ALL my tubes hot !

10-08-2009, 10:24 PM	#1646 (permalink)
*Adwex* Super Moderator Join Date: Sep 2006 Location: Long Island, NY Posts: 1,631	Re: Preamp Tubes? - Who, What, When, Where, Why, and How? Happy Birthday Marty! I still have some of this left after a recent visit to the craft beer section, think I'll crack one open in your honor. __________________ http://www.youtube.com/MarshallLesPaul

10-09-2009, 04:52 AM	#1648 (permalink)
Procter2812 Senior Member Join Date: Mar 2009 Posts: 333	Re: Preamp Tubes? - Who, What, When, Where, Why, and How? Happy birthday Marty!... have a good un!!! __________________ www.sexpistolstribute.co.uk JCM800 2203X JCM2000 TSL100 Marshall 1936 Gibson Les Paul Custom Orville Les Paul Custom Fender Highway One Stratocaster Boss EQ Ibanez Tube Screamer Crybaby Wah Boss TU-2

10-09-2009, 01:55 PM	#1650 (permalink)
thefyn Junior Member Join Date: Oct 2009 Posts: 24	Re: Preamp Tubes? - Who, What, When, Where, Why, and How? What is this thing all about: Soldano Tube Amp Hot Mod HotMOD for Marshall Amps - eBay (item 170391667714 end time Oct-10-09 03:06:50 PDT)

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