Valve audio amplifier technical specification: Revision history

19 May 2023

• curprev 12:0712:07, 19 May 2023 Vlastik~cswiki talk contribs 39,107 bytes +402 →Unusual designs: - Class A push-pull amplifiers added undo

25 December 2022

• curprev 15:5715:57, 25 December 2022 Tassedethe talk contribs 38,705 bytes −4 →Commercial push–pull (PP) amplifiers undo

17 May 2022

• curprev 22:0322:03, 17 May 2022 Adam.Sudo talk contribs m 38,709 bytes +10 Cleaned up using AutoEd undo

30 October 2021

• curprev 17:4117:41, 30 October 2021 Ira Leviton talk contribs m 38,699 bytes +1 paraphase->paraphrase - Fix a typo in one click undo

11 September 2021

• curprev 20:0320:03, 11 September 2021 Ira Leviton talk contribs m 38,698 bytes +1 paraphase->paraphrase - Fix a typo in one click undo

21 March 2021

• curprev 17:0717:07, 21 March 2021 Maxeto0910 talk contribs 38,697 bytes +101 Added short description. undo Tags: Mobile edit Mobile web edit Advanced mobile edit

12 June 2020

• curprev 13:2413:24, 12 June 2020 TSventon talk contribs m 38,596 bytes +1 amplifers->amplifiers - Fix a typo in one click undo

2 December 2019

• curprev 04:4304:43, 2 December 2019 Chongkian talk contribs 38,595 bytes −52 not main article in that category undo

25 October 2019

• curprev 12:0712:07, 25 October 2019 Narky Blert talk contribs 38,647 bytes −7 dab tag resolved undo

18 October 2019

• curprev 10:2510:25, 18 October 2019 Onel5969 talk contribs m 38,654 bytes +24 Disambiguating links to Differential pair (help needed) using DisamAssist. undo

19 April 2018

• curprev 01:3101:31, 19 April 2018 86.10.62.169 talk 38,630 bytes +7 →Class A: 2 small corrections undo

4 July 2017

• curprev 01:4001:40, 4 July 2017 Magic links bot talk contribs m 38,623 bytes +12 Replace magic links with templates per local RfC and MediaWiki RfC undo

5 March 2017

• curprev 00:4600:46, 5 March 2017 Widefox talk contribs 38,611 bytes −89 already in body per WP:SEEALSO / WP:OVERLINK, sp, tidy, MOS title/bold undo

13 February 2017

• curprev 20:0820:08, 13 February 2017 Narky Blert talk contribs 38,700 bytes +11 Link to DAB page repaired undo

1 June 2016

• curprev 17:5017:50, 1 June 2016 139.127.173.212 talk 38,689 bytes +36 →Ultra-linear undo
• curprev 17:4117:41, 1 June 2016 139.127.173.212 talk 38,653 bytes +206 →Output transformers undo
• curprev 17:2617:26, 1 June 2016 139.127.173.212 talk 38,447 bytes +14 →Commercial push–pull (PP) amplifiers undo
• curprev 17:1817:18, 1 June 2016 139.127.173.212 talk 38,433 bytes +36 →Parallel push–pull (PPP) amplifiers undo
• curprev 16:2416:24, 1 June 2016 139.127.173.212 talk 38,397 bytes +8 →Ultra-linear undo
• curprev 16:2016:20, 1 June 2016 139.127.173.212 talk 38,389 bytes +70 →Ultra-linear undo

25 March 2016

• curprev 07:0207:02, 25 March 2016 BG19bot talk contribs m 38,319 bytes −1 →Commercial single-ended triode amplifiers: Remove blank line(s) between list items per WP:LISTGAP to fix an accessibility issue for users of screen readers. Do WP:GENFIXES and cleanup if needed. Discuss this at [[Wikipedia talk:WikiProj... undo

18 November 2015

• curprev 03:2703:27, 18 November 2015 75.149.63.186 talk 38,320 bytes +1 →Characteristics of valves undo Tags: Mobile edit Mobile app edit

27 September 2015

• curprev 13:2213:22, 27 September 2015 2607:fcc8:bf50:f400:e836:205f:19d:d3a1 talk 38,319 bytes −1 →Modern audiophile hi-fi amplification undo

6 September 2015

• curprev 21:2421:24, 6 September 2015 Iridescent talk contribs m 38,320 bytes +3 Typo fixing, typo(s) fixed: Consequently → Consequently, (2), However → However, using AWB undo

5 September 2015

• curprev 14:3614:36, 5 September 2015 Solicitr talk contribs 38,317 bytes +132 →The push–pull power amplifier undo

9 August 2015

• curprev 16:3516:35, 9 August 2015 BD2412 talk contribs m 38,185 bytes +19 →Cascode: Fixing links to disambiguation pages, replaced: gain → gain using AWB undo

23 June 2015

• curprev 19:1919:19, 23 June 2015 Sionk talk contribs 38,166 bytes −400 →Output transformerless amplifiers (OTL): removed link (and uncited plug) for non-notable company undo

28 December 2014

• curprev 17:2917:29, 28 December 2014 Gadget850 talk contribs m 38,566 bytes +13 update gallery center, replaced: <center><gallery> → <gallery class="center">, </gallery></center> → </gallery>, <gallery → <gallery class="center" , class="center" class="center" → class="center", <gallery> → <g using AWB undo

20 December 2014

• curprev 19:0719:07, 20 December 2014 John of Reading talk contribs m 38,553 bytes +14 Typo/general fixing, replaced: using using → using using AWB undo

20 November 2013

• curprev 03:4803:48, 20 November 2013 Ohconfucius talk contribs 38,539 bytes +4 →Modern audiophile hi-fi amplification: WL undo

18 November 2013

• curprev 20:5120:51, 18 November 2013 GreenC talk contribs 38,535 bytes +4 →References undo

3 October 2013

• curprev 10:3510:35, 3 October 2013 62.80.140.10 talk 38,531 bytes −414 →Negative feedback (NFB) undo
• curprev 10:3410:34, 3 October 2013 62.80.140.10 talk 38,945 bytes −236 →Negative feedback (NFB) undo

23 August 2013

• curprev 09:5009:50, 23 August 2013 Yobot talk contribs m 39,181 bytes −19 WP:CHECKWIKI error fixes / special characters in sortkey fixed using AWB (9440) undo

14 April 2013

• curprev 21:3321:33, 14 April 2013 91.0.44.228 talk 39,200 bytes +2 →Commercial single-nded triode amplifiers= undo

23 February 2013

• curprev 18:1918:19, 23 February 2013 86.166.71.0 talk 39,198 bytes −1 →Characteristics of valves: Surplus parenthesis undo

7 February 2013

• curprev 21:4621:46, 7 February 2013 Wtshymanski talk contribs 39,199 bytes −46 none of those are the right one, leave as red link; remove red link from see-also Undid revision 537115187 by Medeis (talk) undo
• curprev 21:3821:38, 7 February 2013 Medeis talk contribs 39,245 bytes +23 →Commercial push–pull (PP) amplifiers undo

3 February 2013

• curprev 11:5811:58, 3 February 2013 I B Wright talk contribs m 39,222 bytes −722 Undo string of vandalism edits introducing nonsense and non encyclopeadic POV. undo
• curprev 02:5802:58, 3 February 2013 88.114.5.164 talk 39,944 bytes +8 →Parallel push–pull (PPP) amplifiers undo
• curprev 02:4602:46, 3 February 2013 88.114.5.164 talk 39,936 bytes +11 →Parallel push–pull (PPP) amplifiers undo
• curprev 02:3402:34, 3 February 2013 88.114.5.164 talk 39,925 bytes −1 →Parallel push–pull (PPP) amplifiers undo
• curprev 02:2702:27, 3 February 2013 88.114.5.164 talk 39,926 bytes +8 →Parallel push–pull (PPP) amplifiers undo
• curprev 02:2202:22, 3 February 2013 88.114.5.164 talk 39,918 bytes +2 →Parallel push–pull (PPP) amplifiers undo
• curprev 02:2102:21, 3 February 2013 88.114.5.164 talk 39,916 bytes +45 →Parallel push–pull (PPP) amplifiers undo
• curprev 02:1402:14, 3 February 2013 88.114.5.164 talk 39,871 bytes +649 →Parallel push–pull (PPP) amplifiers undo

24 January 2013

• curprev 16:3616:36, 24 January 2013 86.157.171.34 talk 39,222 bytes +237 WP:ENGVAR Rationalised terms to match article title. Some grammatical corrections. Correction to noise discussion: adding two equal amplitude random noise sources does not give double the noise power due to partial cancellation. undo
• curprev 16:0016:00, 24 January 2013 86.157.171.34 talk 38,985 bytes +6 →Characteristics of valves: Not the unit of current. undo

30 November 2012

• curprev 20:5920:59, 30 November 2012 Dicklyon talk contribs 38,979 bytes +1 →Microphony: period. was something lost here? undo
• curprev 20:5820:58, 30 November 2012 Dicklyon talk contribs 38,978 bytes +33 ce undo