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

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NOTE: THESE TYPES OF CHARTS WILL BE USED THROUGHOUT THIS DOCUMENT. HERE IS A LEGEND SO ONE MAY KNOW WHAT THE COLUMN HEADINGS MEAN. SEE BELOW Characteristic nomenclature used by <strong>tube</strong> engineers 22
Keep in mind, the specs on the <strong>tube</strong>s below was, at the time of testing. This is an average of many factory runs. These numbers are always changing from factory run to factory run. The most current data which is more detailed, can be found elsewhere in this document. 23
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 and 8: THE ‘MARSHALL” STYLE AMPS in th
Page 9 and 10: HUGE ROCK AMP COMBO FOR THE CLASSIC
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: 12AX7 (ECC83, 7025, 12AT7, 12AY7, 1
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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