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

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6V6 Types Some of the classic RCA 6V6 tubes to the left. 6V6R - a newer Russian 6V6 that is from the same tooling as the Electro Harmonix 6V6. This tube holds up well to plate voltages of 450+ volts, and will do very well in amps such as the Fender Deluxe Reverb. http://www.groovetubes.com/product.cfm?Product_ID=1160 50
6V6C - a new 6V6 off new tooling that is holding up to higher plate voltages nicely and has a sound more folks are starting to prefer over the 6V6R as time passes during 2002-2003. http://www.groovetubes.com/product.cfm?Product_ID=1727 A GE black plate on the left and a GE gray plate on the right. Some folks think that the black plates sound better or perform better than the gray plates. I will leave this to your own judgment. Comparison of new and NOS tube tubes in a mid rating (bear in mind, the “NOS spec” number we are looking for here is 45.0 milliamps below for a 6V6 TUBE Output in Milliamps 6V6 ( #6 rating) 6V6A USA NOS RCA Blackplate 43.7 6V6GT Tung Sol 45.4 6V6 Chinese 47.2 6V6R Russian EH 51.9 51
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 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: Maximum plate dissipation on tubes
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

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

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