a tube primer for guitar and bass players - Guitar Amplifier Blueprinting

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BLUES / SMALL CLUB AMPS – TWO STANDARDS OVER DECADES The Victoria 20112T (tweed deluxe) and Fender Deluxe Reverb The Fender Tweed Deluxe (on the right in the photo). There is little to be said about these Deluxes, and this Victoria is one of the very best. The phase inverter on the tweed amp is only one half of a 12AX7, and the tone control works directly on that triode. This lets one balance the ratio of preamp to output distortion just so, a feature that I miss on the Black Face Deluxe Reverb that came in later years. Then again, pick either of these amps, depending on taste! For a lot more info on this amp head to http://www.guitaramplifierblueprinting.com/Victoria1.html MY FAVORITE CLEAN AMP – FOR COUNTRY PICKERS, RHYTHM PLAYERS, BUT ALSO HUGE LEAD CRUNCH FOLKS ALA JOE WALSH / TED NUGENT The Dr. Z KT-45 for Fender Twin Reverb or Super Reverb fans This amp puts out close to 70 watts or more. Again, simple controls, but not limited tones. The EF86 in the front end has huge gain and is driven by the tone stack, so a very huge sound with massive sound stage image is possible with this amp, more so then with the old classic, the Fender Twin Reverb. These amp are currently with Brooks and Dunn, and many others. This is the amp Joe Walsh used on the Eagles “Hell freezes over tour”. http://www.guitaramplifierblueprinting.com/doctorzamps2a.html 8
HUGE ROCK AMP COMBO FOR THE CLASSIC 1950S AND EARLY 1960S TONES Victoria 80212T and 50212T Massive clean tones, more headroom and larger transformers than a 100 watt Hiwatt. The Tweed Twin is what you see being used by folks from Clapton to The Stones these days. This is one huge sounding amp, the sound of Rock and Roll. If this amp is too much for you, there is also a 50 watt version which frankly, is more than enough for most stages and outdoor venues. I know some folks are going to say, “what about the Victoria Bassman”? I don’t think there is any reason to list that amp in here, doesn’t everybody already have a tweed Bassman? http://www.guitaramplifierblueprinting.com/Victoria2.html MONSTER GAIN IN A SMALL PACKAGE – STUDIO MASTERPIECE – SMALL CLUB MASTERPIECE Dr. Z Carmen Ghia – “if I could have only one amp for the rest of my playing days, it would be a Ghia” … msr One tone, one volume, and can be pretty clean at less than 10 o’clock on the volume with a decent amount of clean headroom, a bit louder than my Deluxe Reverb. The amp is rated at 18 watts … don’t let that fool you, look at the power transformer! Hand wired turret board, the best parts, and turning the volume past 10 o’clock the fun starts and the surprised looks never stop. A necessity in any studio. Conjunctive tone filter and fixed bias phase inverter … you won’t see these in other amps http://www.guitaramplifierblueprinting.com/doctorzamps3.html 9
Page 1 and 2: A TUBE PRIMER FOR GUITAR AND BASS P
Page 3 and 4: 6V6 OUTPUT TUBES ..................
Page 5 and 6: DITTO - The Swiss Army Knife of the
Page 7: THE ‘MARSHALL” STYLE AMPS in th
Page 11 and 12: Great designs with something worth
Page 13 and 14: Biasing in brief Bias your amp prop
Page 15 and 16: The Dr. Z Carmen Ghia. Sure, the go
Page 17 and 18: Preamp Tubes Please note that the t
Page 19 and 20: The basics of preamp tube differenc
Page 21 and 22: 12AX7 (ECC83, 7025, 12AT7, 12AY7, 1
Page 23 and 24: Keep in mind, the specs on the tube
Page 25 and 26: 12AX7-R2 - Sovtek 12AX7LPS Gain: 83
Page 27 and 28: ECC83-S - from the JJ factory Gain:
Page 29 and 30: 5751 New Manufacture Expected Gain
Page 31 and 32: The famed 7199 gold pin of the past
Page 33 and 34: 12AX7R3 Electro Harmonix (10/29/02)
Page 35 and 36: Additional Small Signal Tube Tests
Page 37 and 38: Recent tube test results DATE TUBE
Page 39 and 40: Fairly wide current spread, so bewa
Page 41 and 42: DATE TUBE B+ BIAS mA TC (gm) gp Gai
Page 43 and 44: B+ BIAS mA TC (gm) TUBE volts volts
Page 45 and 46: B+ BIAS mA TC (gm) DATE TUBE volts
Page 47 and 48: This is simply a basic power output
Page 49 and 50: Maximum plate dissipation on tubes
Page 51 and 52: 6V6C - a new 6V6 off new tooling th
Page 53 and 54: This is the 6L6C or straight bottle
Page 55 and 56: 6L6-R2 - The Svetlana 6L6. Prior to
Page 57 and 58: KT-66-HP - Russia, built under cont
Page 59 and 60:
EL34 - E34LS - and 6CA7 types 59
Page 61 and 62:
EL34C - Chinese EL-34 (25 watt tube
Page 63 and 64:
The Groove Tubes GT-6CA7GE “The G
Page 65 and 66:
The RCA Gray Plate. 65
Page 67 and 68:
Power output comparison test result
Page 69 and 70:
RCA 7027A NOS A big KT-90 69
Page 71 and 72:
The KT-88C A very strong KT88, with
Page 73 and 74:
Sorry, but I just HAD to show a pho
Page 75 and 76:
6550-R - Russian 6550, takes longer
Page 77 and 78:
Power comparison chart of current o
Page 80 and 81:
A pair of the famed Telefunken NOS
Page 82 and 83:
Output power chart for EL-84 family
Page 84 and 85:
New Electro Harmonix EL-84 (June 20
Page 86 and 87:
These are some of the 1980s JAN Phi
Page 88 and 89:
The 5R4-GYB, often used in place of
Page 90 and 91:
5U4GB above - 362 volts max. 5V4G a
Page 92 and 93:
The GT Rating system - an explanati
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a tube primer for guitar and bass players - Guitar Amplifier Blueprinting

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