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20 posts - 12 authors - Last post: Jan 23, 2004I'll have to go through my tube stock to check RCA and GE 7025's versus the 12AX7's, but with Sylvania 7025's v/ 12AX7's there is an entirely .

8 posts - 5 authors - Last post: Jan 6, 2010[Archive] Telefunken 12ax7 VS Mullard 7025 Tube Audio.

Indeed, some GE 12AX7 and 7025 tubes from the 1970s were also Mullard made . . are a nice surprise with their low prices as compared to the European types. .

10 posts - 7 authors - Last post: Sep 11, 200912AX7, 5751 or 7025 ? Amps and Cabs. . A 12AX7A = 7025, just a better quality 12AX7. . As to grey vs black, yeah, it's a matter of taste. .

Aug 11, 2009 – Ef86 Vs 12ax7 Papers and Research , find free PDF download from the original PDF search engine.

High quality preamp tubes, complete sonic descriptions, free custom sound how- to. Specialized in currently made 12AX7 type tubes selected for their unique .

31 posts - 10 authors - Last post: Dec 11, 2007My current scratch built amp is using old, used 12AX7 tubes, but I recently noticed Fender specifies 7025/12AX7A tubes in their later amps. .

23 posts - 7 authors - Last post: Dec 6, 201012ax7 vs 12ax7a Pro Audio. . The RCA 7025 was 12AX7 with a different heater and cathode design and slightly different grid support. .

Sep 18, 2001 – Re: 12AX7 vs 7025 - Eli Duttman - SET Asylum. . In Reply to: 12AX7 vs 7025 posted by Vinnie on September 18, 2001 at 02:58:28: .

Results 1 - 10 of 19600 – 7025 vs 12AX7.

Replaces any 12AX7, 7025 or 12AX7A type tubes including HiFi application. In a guitar . Buy 5 and save over 30% compared to regular boxed version! Price is .

Preferred Series 7025 - A great sounding 12AX7 tube type that reminds me a .

18 posts - 10 authors - Last post: Jan 5, 2010How come you see some of these old tubes with both numbers printed on the same tube while others have just 7025 or 12AX7. If there is really .

Tubes marked with both 12AX7 and 7025 are usually low noise vacuum tubes . to the 12AX7, but the gain is 70 compared to 100 for the 12AX7 vacuum tube. .

12AX7 / 7025 Radio Technique (RT) France listed below 1 platinum low noise . .. The upper treble is super-sweet -- reminds me of silver vs. copper cabling. .

12AX7 / 7025 / ECC83 /5751 Type Vacuum Tubes. Brands available: Tung-Sol, Mullard, JAN, GE, Sovtek, Tesla, Svetlana, JJ, Electro Harmonix. Buy electron .

6 posts - 3 authors - Last post: Dec 29, 2007I just bought some Tung Sol 12AX7 new editions. Can I use one in V1 or does V1 really need to be 7025? On dougstubes I could not find 7025s. .

Feb 22, 2003 – 12AX7 vs 7025. From mj--(at)--ookie.pass.wayne.edu Sat Aug 27 09:01:35 CDT 1994. Article: 26601 of rec.music.makers.guitar .

Dec 2, 2010 – The more dimensionaler ones are Mullard, Philips and TAD 7025-S, those are . 12AX7 vs 12AT7 driverby ampdoctor7823 views; Thumbnail .

4 posts - 3 authors - Last post: Oct 12, 2009My question is, can I place these in a Fender Vibrolux Reverb (blackface) in the pre-amp section (normally 7025/12AX7) without blowing .

If all of the tubes in your set start with 6 or 12 (except for the 5 V rectifier) , then it is a . Tubes marked with 12AX7 and 7025 both should be low noise, too. .

Filament 5.0V 2 Amp, Rated at 2800 PIV Max DC Forward Drop 67 volts, Plate . .. Super low noise 7025/12AX7 1970s vintage, Ultra-rare EECC282/7025 .

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Aug 9, 2005 – Has anyone ever noticed a difference in these tubes? . noticed and performance difference. . David . Prev by Date: .

These tubes are exact replacements for 12AX7, 7025 and ECC83 and will work in any amp, vintage or current manufacturer including: Fender, Gibson, Marshall, .

12 posts - 9 authors - Last post: Jun 2012AX7A is a low noise 12AX7 (sim. to a 7025). Whether or not it's . I would say that $20 difference is RCA vs GE rather than the 'a'. The 'a' is .

14 posts - 8 authors - Last post: Dec 7, 2006I play out of an ampeg superocket 100 watt combo. I am interested in swapping preamp tubes to try and get a sweeter sound with a litte more .

RCA 7025 / 12AX7A, Considered to be the best 12AX7 ever made in the US, these are the famous RCA 7025 that used to be in all of the great amps. Price is for .

The 12AX7 / 7025 / ECC83 Tube family 12AX7 Vacuum Tube List 12AX7A, 7025, ECC83, B759 and 12AX7 preamp type tubes. Choose your . 12ax7wa by Zehra 12AX7 .

2 posts - 1 author - Last post: Jul 7, 2010Well, I did some V1 preamp tube swapping in my highly modified Blues Junior .

If I replace my 12ax7's with 7025's will I get more gain? 6/9/2000 9:17 PM. Casey4s. No more gain. The difference between a 7025 and a 12AX7, is that the 7025 .

7025 vs 12ax7 pdf ebook download ? Get direcly - Mic Kaczmarczik's Breast feeding or tube Information Now this directory comprises USENET writing Mic .

Sep 18, 2001 – 12AX7 vs 7025 - Vinnie - SET Asylum. . Re: 12AX7 vs 7025 .

Sep 1, 2000 – The 12AX7 / 7025 / ECC83 Tube family . . When we see a transconductance of 1200 versus the 1600, the way the tube reacts is different too, .

The main event is the "Battle of 12AX7" which is something I have tried to organise . Beside this battle, we have also compared the Proceed CDD transport vs. the . getter/single support/toast plate, Raytheon 7729, Mullard 7025 , GEC CV492, .

Sep 18, 2001 – Re: 12AX7 vs 7025 - Tom §. - SET Asylum. .

8 posts - 5 authors - Last post: Jan 10, 2003You can substitute a 12AX7A, a 7025, or if you only need a single triode . You'll often see a single tube labeled "12AX7 12AX7A 7025" on the .

7 posts - 7 authors - Last post: May 3, 2009Or if I want to use a 7025 in any channel, do I have to replace all 4 preamp tubes with 7025's or 5751's for that matter or can 12AX7's, 7025's, .

8 posts - 5 authors - Last post: Jan 6, 2010I've also read that the Mullard 7025 is a very good low noise type tube. I also have an ASR-433 Running bugleboy 6bq5's and Mullard 12ax7. .

3 posts - 3 authors - Last post: Jul 18, 20097025 is the low noise version of the 12AX7. Is your tube a Baldwin-labeled tube? If so, it is likely a Raytheon (because of the yellow-label), .

Mic Kaczmarczik's 12AX7 vs 7025 Information: 12AX7 vs 7025 Vacuum Tubes for Amps . The Boogie Board • View topic - 12AX7 vs 7025 vs 5751 (can they . .

12AX7 is a miniature dual triode vacuum tube with high voltage gain. . tube has a center tapped filament so it can be used in either 6.3V or 12.6V heater circuits. . 7025, and 7729; European versions B339, B759, CV492, CV4004, CV8156, .

10 posts - 3 authors - Last post: Jan 18, 2008Ok, I've read the info. in my tube manuals, I read what Aspen Pittman says about them in "The Tube Amp Book" I've checked other forums' .

Of course it all depends upon the 7025 or 12AX7 your talking about, the .

13 posts - 5 authors - Last post: Oct 15And as far are other tubes, 7025 VS 12AX7, after putting my fav Tung Sol RI 12AX7 in V1, not positive which direction to go for the PI and other .

ANSWER - The 7025 vacuum tube is basically a 12AX7 with Lower . .. Central Forums > General Forums > DIY (Do It Yourself) > 12ax7 vs 12AT7 vs 7025 etc. .

4 posts - 2 authors - Last post: Jan 2, 2006What's the difference between these preamp tubes as far as tonal qualities? I have seen some tube manufactures have all 3 types printed on .

7 posts - 4 authors - Last post: May 26, 2005Long story short, I picked up the following 12ax7's/ ecc83's: 2 Mullard . Eden Electronics uses their own hand selected 7025 tubes. They do .

I have a blackface Princeton reverb that has: V-1 RCA 7025 Main Preamp… first two gain stages V-2 IEC Mullard 12AT7 Reverb driver V-3 IEC Mullard 12AX7 .

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