Vacuum Tubes - Revision history

Zander at 14:41, 17 July 2020

2020-07-17T14:41:48Z

Zander at 14:38, 17 July 2020

2020-07-17T14:38:19Z

Zander: /* Tube Manufacturers */

2018-02-27T05:04:03Z

‎Tube Manufacturers

Zander: /* Power Tube Types */

2018-02-27T05:03:43Z

‎Power Tube Types

Zander: /* Preamp Tubes */

2017-10-10T00:02:33Z

‎Preamp Tubes

Zander: /* Power Tubes */

2017-10-09T23:53:41Z

‎Power Tubes

Zander: /* Rectifier Tubes */

2017-10-09T23:53:26Z

‎Rectifier Tubes

Zander: /* Preamp Tubes */

2017-10-09T23:50:25Z

‎Preamp Tubes

Zander: /* Tube Manufacturers */

2017-10-09T23:48:38Z

‎Tube Manufacturers

Zander: /* Rectifier Tube Types */

2017-10-09T23:47:56Z

‎Rectifier Tube Types

@@ Line 77: / Line 77: @@
 ----
 ;Additional Sources
-* http://www.tubebooks.org/Books/PrinciplesOfElectronics.pdf
+# http://www.tubebooks.org/Books/PrinciplesOfElectronics.pdf

← Older revision		Revision as of 14:38, 17 July 2020
Line 73:		Line 73:
	* [[Tung Sol]]		* [[Tung Sol]]
	</div>		</div>
		+
		+
		+	----
		+	;Additional Sources
		+	* http://www.tubebooks.org/Books/PrinciplesOfElectronics.pdf

@@ Line 60: / Line 60: @@
 There have been and are many tube manufacturers.  In the 1980's and 1990's it was thought that the vacuum tube, and vacuum tube-based amplification would be something that would be gone by 2020.  The irony of the Internet is that the "new" technology of information sharing has allowed a revival of interest in the "old" tube technology.  Below is a list of the most common or best well-known tube manufacturers.
+<div style="column-count:2;-moz-column-count:2;-webkit-column-count:2">
 * [[EI]]
 * [[Electro-Harmonix]]
@@ Line 72: / Line 72: @@
 * [[Telefunken]]
 * [[Tung Sol]]

@@ Line 31: / Line 31: @@
 ====Power Tube Types====
+<div style="column-count:2;-moz-column-count:2;-webkit-column-count:2">
 * [[5881]]
 * [[6550]]
@@ Line 45: / Line 45: @@
 * [[KT90]]
 * [[KT120]]
 ==Rectifier Tubes==

@@ Line 16: / Line 16: @@
 A typical instrument amplifier contains both a preamp section and a power amp section.  The same tends to be the case for all musical equipment.  A singer usually sings into a mic preamp that then goes from the line level into a P.A. (public address system) that has the power amp.
 ; Side Note : What makes effect pedals different from rack effects tends to be where, in the signal chain, the effect is sitting.  In other words, what makes a pedal different from a rack effect is in what decibel level the signal is at when a pedal or rack effect is applied.  Effect pedals typically accept, modify, and output instrument-level (-10 dB) signals.  Rack effects typically accept, modify, and output a signal at the line-level (+4 dB).  This means that it's usually not possible to use pedals in the effects loop of amplifiers.  Of course, there are exceptions.  There are so many that it's not possible to list here.  The point is that if you attempt to put your stompboxes in your effects loop, don't be surprised if it sounds bad.  Effect pedals are usually designed to accept a -10 db signal, not a +4 db signal coming from the effects loop.  (There are ways around this...)
 ====Preamp Tube Types====
 * [[12AX7]] / [[ECC87]]
 * [[12AT7]] / [[ECC85]]

← Older revision		Revision as of 23:53, 9 October 2017
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	[[Power_Tubes\|Power tubes]] are used in the "power" amplification phase of an amplifier. This is where the line-level signal is amplified to push a loudspeaker (or a number of loudspeakers...). (The linked article on Power Tubes will have much more information)		[[Power_Tubes\|Power tubes]] are used in the "power" amplification phase of an amplifier. This is where the line-level signal is amplified to push a loudspeaker (or a number of loudspeakers...). (The linked article on Power Tubes will have much more information)
−

	====Power Tube Types====		====Power Tube Types====

← Older revision		Revision as of 23:53, 9 October 2017
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	The purpose of [[Rectifier_Tubes\|rectifier tubes]] is power rectification. Rectification, in an amp, is the act of converting the alternating current (AC) coming from the power transformer into the direct current (DC) that the amplifier can use. Nowadays, rectification is done using diodes. The diodes are aligned, usually in a 2x2 configuration that's called a "bridge". Before diode bridges were used to rectify the high-voltages from power transformers, tube rectifiers were used. Tube rectifiers have a certain sound associated with them, a softness to the guitar attack, that you can't get with diode bridge rectifiers. However, tube rectifiers also tend not to be able to handle current loads beyond 50 watts. [http://www.guitarplayer.com/miscellaneous/1139/all-about-rectifiers/16429 Guitar Player Magazine] has a good article on rectification. For a deeper and more in-depth description of [http://en.wikipedia.org/wiki/Rectifier Rectifiers] please see the linked sources.		The purpose of [[Rectifier_Tubes\|rectifier tubes]] is power rectification. Rectification, in an amp, is the act of converting the alternating current (AC) coming from the power transformer into the direct current (DC) that the amplifier can use. Nowadays, rectification is done using diodes. The diodes are aligned, usually in a 2x2 configuration that's called a "bridge". Before diode bridges were used to rectify the high-voltages from power transformers, tube rectifiers were used. Tube rectifiers have a certain sound associated with them, a softness to the guitar attack, that you can't get with diode bridge rectifiers. However, tube rectifiers also tend not to be able to handle current loads beyond 50 watts. [http://www.guitarplayer.com/miscellaneous/1139/all-about-rectifiers/16429 Guitar Player Magazine] has a good article on rectification. For a deeper and more in-depth description of [http://en.wikipedia.org/wiki/Rectifier Rectifiers] please see the linked sources.
−

	====Rectifier Tube Types====		====Rectifier Tube Types====

← Older revision		Revision as of 23:50, 9 October 2017
Line 18:		Line 18:


−	; Side Note : What makes effect pedals different from rack effects tends to be where, in the signal chain, the effect is sitting. In other words, what makes a pedal different from a rack effect is in what decibel level the signal is at when a pedal or rack effect is applied. Effect pedals typically accept, modify, and output instrument-level (-10 dB) signals. Rack effects typically accept, modify, and output a signal at the line-level (+4 dB). This means that it's usually not possible to use pedals in the effects loop of amplifiers~~, in the same way that it's usually not possible to use rack effects~~. Of course, there are exceptions. There are so many that it's not possible to list here. The point is that if you attempt to put your stompboxes in your effects loop, don't be surprised if it sounds bad. Effect pedals are usually designed to accept a -10 db signal, not a +4 db signal coming from the effects loop. (There are ways around this...)	+	; Side Note : What makes effect pedals different from rack effects tends to be where, in the signal chain, the effect is sitting. In other words, what makes a pedal different from a rack effect is in what decibel level the signal is at when a pedal or rack effect is applied. Effect pedals typically accept, modify, and output instrument-level (-10 dB) signals. Rack effects typically accept, modify, and output a signal at the line-level (+4 dB). This means that it's usually not possible to use pedals in the effects loop of amplifiers. Of course, there are exceptions. There are so many that it's not possible to list here. The point is that if you attempt to put your stompboxes in your effects loop, don't be surprised if it sounds bad. Effect pedals are usually designed to accept a -10 db signal, not a +4 db signal coming from the effects loop. (There are ways around this...)

@@ Line 65: / Line 65: @@
 There have been and are many tube manufacturers.  In the 1980's and 1990's it was thought that the vacuum tube, and vacuum tube-based amplification would be something that would be gone by 2020.  The irony of the Internet is that the "new" technology of information sharing has allowed a revival of interest in the "old" tube technology.  Below is a list of the most common or best well-known tube manufacturers.
-* EI
+* [[EI]]
-* Electro-Harmonix
+* [[Electro-Harmonix]]
-* General Electric
+* [[General Electric]]
-* J&J/Tesla
+* [[J&J/Tesla]]
-* Mullard
+* [[Mullard]]
-* RCA
+* [[RCA]]
-* Sovtek
+* [[Sovtek]]
-* Svetlana/Winged C
+* [[Svetlana/Winged C]]
-* Sylvania
+* [[Sylvania]]
-* Telefunken
+* [[Telefunken]]
-* Tung Sol
+* [[Tung Sol]]

@@ Line 57: / Line 57: @@
 ====Rectifier Tube Types====
-* GZ34/5AR4
+* [[GZ34]] / [[5AR4]]
-* 5Y3
+* [[5Y3]]
-* 5U4
+* [[5U4]]
 ==Tube Manufacturers==