Electron Tube Class - Revision history

Katie at 20:47, 3 April 2012

2012-04-03T20:47:15Z

← Older revision		Revision as of 20:47, 3 April 2012
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			[[Category:Classes]]
	== About ==		== About ==

Obscurerichard: spelling nitpick

2011-08-15T04:15:29Z

spelling nitpick

← Older revision		Revision as of 04:15, 15 August 2011
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	== News ==		== News ==

	The first session was a great success. We covered the first item in the ~~sillibus~~ and part of the second.		The first session was a great success. We covered the first item in the syllabus and part of the second.

	The next session will feature a brief review of the first session and finish covering the second section. I think it should be possible to reach the section on advanced circuits. during the next session.		The next session will feature a brief review of the first session and finish covering the second section. I think it should be possible to reach the section on advanced circuits. during the next session.

AlonzoTG: /* Schedule */

2011-07-29T22:56:06Z

Schedule

← Older revision		Revision as of 22:56, 29 July 2011
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	== Schedule ==		== Schedule ==

			Next class: Aug 11 at 7:30 PM.

	== Silly Bus ==		== Silly Bus ==

AlonzoTG at 07:21, 29 July 2011

2011-07-29T07:21:43Z

← Older revision		Revision as of 07:21, 29 July 2011
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	Some people have made the mistake of expressing interest in electron tubes. They're about to learn more than they bargained for.		Some people have made the mistake of expressing interest in electron tubes. They're about to learn more than they bargained for.

			== News ==

			The first session was a great success. We covered the first item in the sillibus and part of the second.

			The next session will feature a brief review of the first session and finish covering the second section. I think it should be possible to reach the section on advanced circuits. during the next session.

			I also owe you guys a tube dissection, I'll try to work that into the next session too.


	== Schedule ==		== Schedule ==

	~~A lecture session has been scheduled in the space for Thursday July 28 at 7:30pm.~~


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	* Thermionic emission: From the lightbulb to the pentode.		* Thermionic emission: From the lightbulb to the pentode.
	* Fundamental circuits		* Fundamental circuits and coupling
	* Phase splitting circuits		* Push-pull and Phase splitting circuits
			* Transformers in single-ended and push-pull.
	* Advanced circuits		* Advanced circuits
	* Tube failure modes		* Tube failure modes

AlonzoTG at 22:56, 18 July 2011

2011-07-18T22:56:29Z

← Older revision		Revision as of 22:56, 18 July 2011
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	== Schedule ==		== Schedule ==

	~~Not yet determined~~.		A lecture session has been scheduled in the space for Thursday July 28 at 7:30pm.

AlonzoTG at 18:16, 18 July 2011

2011-07-18T18:16:59Z

← Older revision		Revision as of 18:16, 18 July 2011
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	* Phase splitting circuits		* Phase splitting circuits
	* Advanced circuits		* Advanced circuits
			* Tube failure modes

	* Hands-on experience building a battery-powered single tube filamentary pentode pre-amp.		* Hands-on experience building a battery-powered single tube filamentary pentode pre-amp.

AlonzoTG: /* Silly Bus */

2011-07-04T19:43:04Z

Silly Bus

← Older revision		Revision as of 19:43, 4 July 2011
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	* Hands-on experience building a battery-powered single tube filamentary pentode pre-amp.		* Hands-on experience building a battery-powered single tube filamentary pentode pre-amp.

			* Power supplies and tweaking.

	* What is the real secret to great sound?		* What is the real secret to great sound?

AlonzoTG at 19:36, 4 July 2011

2011-07-04T19:36:35Z

← Older revision		Revision as of 19:36, 4 July 2011
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	* Advanced circuits		* Advanced circuits

	* Hands-on experience building a tube ~~circuit (TBD)~~.		* Hands-on experience building a battery-powered single tube filamentary pentode pre-amp.

			* What is the real secret to great sound?

	=== Laboratory Supplies ===		=== Laboratory Supplies ===

	~~Not yet determined, looking for a very inexpensive design or kit that has a lot to teach. Send suggestions to~~ [~~mailto~~:~~agrimes@speakeasy~~.~~net Alan Grimes~~]		[http://www.bottlehead.com/store.php?crn=220&rn=438&action=show_detail cheap demo pre-amp]

			Go to [tubedata.info] and obtain what you think is the most informative datasheet for the following tubes and print out a copy. -- you need a physical copy.

			'''filamentary diode'''
			5U4*
			Optional: GZ34 / 5AR4

			'''canonical triode'''
			2A3
			Optional: 845

			'''to explore gain versus output'''
			6SN7*
			6SL7* or 12AX7 / ECC83

			'''Pentodes'''
			6BQ5 / EL84
			Optional: KT88, EF86

			3S4 <<< absolutely required, this is the tube we're using.

	=== Suggested Reading ===		=== Suggested Reading ===

AlonzoTG: Created page with "== About == Some people have made the mistake of expressing interest in electron tubes. They're about to learn more than they bargained for. == Schedule == Not yet determined..."

2011-07-04T03:33:32Z

Created page with "== About == Some people have made the mistake of expressing interest in electron tubes. They're about to learn more than they bargained for. == Schedule == Not yet determined..."

New page

== About ==

Some people have made the mistake of expressing interest in electron tubes. They're about to learn more than they bargained for.

== Schedule ==

Not yet determined.

== Silly Bus ==

* Thermionic emission: From the lightbulb to the pentode.
* Fundamental circuits
* Phase splitting circuits
* Advanced circuits

* Hands-on experience building a tube circuit (TBD).

=== Laboratory Supplies ===

Not yet determined, looking for a very inexpensive design or kit that has a lot to teach. Send suggestions to [mailto:agrimes@speakeasy.net Alan Grimes]

=== Suggested Reading ===

Radiotron Designer's Handbook 4th ed. [www.pmillett.com] Might have one lying around.

Tube Circuits for Audio Amplifiers (1-882580-03-6) features some very elegant and practical designs.

An Approach To Audio Frequency Amplifier Design. (1-882580-05-2) Has some good discussions about output transformers and ultralinear design. Then it starts out with some nice practical amps but, before long at all, starts talking about 1,100 watt monsters with 2.5KV power supplies.

Building Valve Amplifiers (0-7506-5695-6) is probably too practical to be enjoyable but I have to deem it essential. His other book is fantastic, one of the most well worn tomes in my personal library, but get this one first.