16 posts - 9 authors - Last post: Jul 25, 2004I had a Marshall Major with 6550's and it was only putting out about 60-80% of its power rating because it was . Sovtek 6550WE power tube. .

Nederlands English Home Tube Shop Audio Amps Guitar Amps Marshall Amps Tube . .. Power amp and PSU schematic with 6x 6550 Issue 3 (Marshall, 1986). .

Oct 12, 2011 – These new production, Russian-made 6550 power tubes are brought . The EL34 tube type is popular in Marshall heads and combo amps as .

Jump to Dating Marshall Amps‎: In 1969 Marshall introduced a date coding system. Some of . 6550, Tung-Sol, Electro-Harmonix, Svetlana, Power Tube .

13 posts - 5 authors - Last post: Jul 8, 2010in the little attention ive paid to this marshall afd amp, i noticed that they have opted to use 6550 power tubes rather than EL84 or 34 tubes. .

13 posts - 9 authors - Last post: Mar 14, 2006my guitar teacher suggested me to try 6550 power tubes ala Zakk . and Norum uses a dsl 50 with 6550, that means that he (or marshall for .

13 hours ago – Most notably in the US, distributor Unicord began replacing Marshall's tried and true EL34 power tubes with the seemingly more reliable 6550s. .

KT88's generate a lot power, handling significantly more plate voltage than other power tubes. As a result, KT88's and 6550's are produce cleaner tones and .

10 posts - 5 authors - Last post: Dec 2, 2003How do these tubes compare? I have a Marshall 50 watter that has 6550 power tubes in it. It's a good amp , it's just that it has too much .

70's marshall boost 5AR4 EL34, 6550 12AX7 hi watt boost . I ordered it with the 6L6 power tube and the 12" Weber alnico Blue Dog 15 watt speaker. This amp .

. Marshall JTM combo 50 watts 1978 - Cayin VP-100i Integrated Vacuum tube amplifier . COMMENTS: "The Kuhl-Tube JAN-6550A quad that you sent me is . the past 6 years, using all ARC Svetlana power tubes, with one try at KT-88's, .

EL-34 vs. 6550 power tubes - YouTube Jan 31, 2011 - 2 min - Uploaded by Prestostark

When I got it, it still had all the original power tubes and preamp tubes, which had . . add 6550 tubes they are expensive but thats what made Marshall so great. .

Jump to What's the difference in the common power tube types ? (EL34 . ‎: This tube is a pentode of the power . 6550: beam-power tetrode, .

With the new EL34EH, Marshall amp owners can recreate the balanced tone, deep, . These new production, Russian-made 6550C power tubes are brought to .

TAD EL84/6BQ5 Black Plate Power Tubes - An exact replica of the RCA .

Jun 16, 2008 – Used extensively by Marshall and Fender during the 1990s. It has about 15% more . NEW- 35W4 For early vintage low power tube amps. . .. Philips 6550 1970s NOS Matched Pairs of the sweeeetest 6550 ever. Like a big .

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19 posts - 16 authors - Last post: Jan 20, 2010i have tried a lot of power tubes(6550,kt`s,etc) in marshall and my vht 2502 poweramp, including NOS mullards EL34, and the winner for me is .

power tube, power tubes, el34 tube, 6l6, 6l6 tube, 6l6 tubes, 6v6, 6v6 tube, 6v6 . Works well in certain Marshall amps as a 6550 replacement, older Ampeg .

The KT88 is a beam tetrode/kinkless tetrode (hence "KT") vacuum tube for .

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Find the lowest price on the Groove Tubes GT-6550-C Quartet Power Tubes and more . In older Marshall's that have 6550's, this tube will give you more .

14 posts - 9 authors - Last post: Aug 29, 2006Its time to retube and Im not sure which tubes to look at. . I liked the EHs for headroom, they seemed to have the most power and . I deal Marshall and Orange and they both sell replacement 6550s, but they only sell the EH. .

Jan 13, 2011 – JJ Electronic tubes continue to win converts for their reliability and . their three new power tubes: 6CA7, 6550 and a new tube called an EL844. . for 6550s is a lot of guys who own the old 800 series Marshalls and don't .

"are you sure the PI tube is closest to the power tubes? because there is a . old Marshall Major P.A. head that came in with RCA 6550's ( you can see pic's of it .

How can I modify my Blender Tweety Bird amp to be as loud as a Marshall . Made by overdriving preamp and power tubes a little, enough to just start compressing the peaks of the . .. 7027/7027A - this is a high power tube similar to a 6550. .

In older Marshall's that have 6550's, this tube will give you more compression and distortion at lower . Groove Tubes - GT-6550CQ - Power Tube Quartet - High .

9 posts - 5 authors - Last post: Nov 28, 2008This is another good site for tube info. It seems that everyone has a slightly different opinion in regards to the best tubes. I retubed my TSL601.

13 posts - 8 authors - Last post: Jul 12, 2007What is the major tone difference between the EL34's and 6550 power tubes. I .

It is the Power Tubes that gives the tube amp the signature tube sound. . made Mullard EL34's in his Marshall Plexi with American made Tung Sol 6550's. .

19 posts - 9 authors - Last post: Feb 3, 2004[Archive] Best Tubes for Marshall JCM 800 Amp Central Station. .

The earliest amps from Fender and Marshall used one volume knob per channel on them only. As you . The power tubes in an amplifier are the larger sets of tubes. . Fortunately, making the conversion from a 6550 to an EL-34 is a relatively .

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Harmony Central Info on the Zakk Wylde Marshall . The 2203X can be modified to accommodate 6550 power tubes if you so choose. You will then have the .

13 posts - 12 authors - Last post: Apr 21, 2007And if I were to play a Marshall 2203X (EL34s) and a Zakk Wylde 2203 .

12 posts - 3 authors - Last post: Jan 8In the late (70's/early 80's) Marshall switched from EL34 power tubes to 6550 power tubes in the American and Japanese production models of .

22 posts - 14 authors - Last post: Nov 18, 2009. if you are going for clean headroom, 6550 power tubes are the way to go, . Most of those old tube 200 watt amps like the Marshall Major and .

Marshall JCM 800 2204 with 6550's - YouTube Oct 16, 2010 - 2 min - Uploaded by Prestostark

Nov 4, 2010 – The Winged C tubes were all labeled Marshall and were the .

Marshall amps for guitar and bass, information, photos, specifications and pricing . The VBA400 has the massive tonal power of eight 6550 power tubes, plus .

Aug 26, 2006 – If you have an amp which uses power tubes which are not listed . KT88s, 6550s, KT90s, and KT100s can have bias ranges that go as high as -100 volts. . . Marshall amps have output transformers which have a very low DC .

This really has to be looked at as a new choice in power tubes. If you have a Marshall and never could decide if 6550 or EL34 was the way to go, you now have .

A 3 x 6 stack of Marshall ModeFour guitar cabinets on the main stage of . reissue) models continue to use vacuum tubes as amplification components. . .. It houses eight 6550 power valves plus three ECC83 and one ECC82 preamp valves. .

Add your own comments to "Marshall JCM 800 2203ZW - valvole 6550 Power Tubes" from Fenisia on Myspace. Social entertainment powered by the passions .

Feb 28, 2011 – Marshall Model 1987This is a 1974 PCB 50 Watt USA export model set up for 6550 power tubes. My first vintage Marshall. Marshall Model .

Feb 22, 2011 – Find the lowest price on the Groove Tubes Gold Series GT-6550-R . Highest power pentode for use in Marshall, Hiwatt, Ampeg SVT, the GT .

The Winged C tubes were all labeled Marshall and were the original tubes that came with the Marshall amps. 6550 Power Tube Types .

FJA modded Marshall JMP 2203 6550 1 - YouTube Aug 22, 2008 - 2 min - Uploaded by FJAMods

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