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MartinV56

Loftin&White amplifier

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En la revista Radio News January 1930 los ingenieros Loftin y White publicaron el diseño de su circuito de acoplamiento directo, circuito que sigue vigente en el mundo de los Single Ended Triode amps


[img]http://img542.imageshack.us/img542/6307/radionews.jpg[/img]





[img]http://img692.imageshack.us/img692/9721/loftinwhitejan1930radio.jpg[/img]



[img]http://img717.imageshack.us/img717/9721/loftinwhitejan1930radio.jpg[/img]






[img]http://img853.imageshack.us/img853/2959/loftinwhitefeb1930radio.jpg[/img]




[img]http://img707.imageshack.us/img707/2959/loftinwhitefeb1930radio.jpg[/img]


[img]http://img714.imageshack.us/img714/2959/loftinwhitefeb1930radio.jpg[/img]



[img]http://img705.imageshack.us/img705/2959/loftinwhitefeb1930radio.jpg[/img]



[img]http://img820.imageshack.us/img820/2959/loftinwhitefeb1930radio.jpg[/img]


[img]http://img267.imageshack.us/img267/1555/250loftinwhite682419.jpg[/img]


Fuente:

[url="http://rl12t15.blogspot.com/search?updated-min=2007-01-01T00:00:00%2B01:00&updated-max=2008-01-01T00:00:00%2B01:00&max-results=4"]http://rl12t15.blogs...0&max-results=4[/url]



[img]http://img836.imageshack.us/img836/7164/schematicw.jpg[/img]

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[img]http://img694.imageshack.us/img694/3240/245loftinwhite682417.jpg[/img]



[img]http://img828.imageshack.us/img828/2190/lw8x.jpg[/img]



[img]http://img860.imageshack.us/img860/6820/lw9ot.jpg[/img]



[img]http://img515.imageshack.us/img515/5225/lw10.jpg[/img]


Fuente:[url="http://rl12t15.blogspot.com/2009/01/rl12t15-pc86-darius-loftin-white.html"]http://rl12t15.blogs...ftin-white.html[/url]

[img]http://img824.imageshack.us/img824/3673/loftinwhite.jpg[/img]

[img]http://img163.imageshack.us/img163/205/j146.jpg[/img]

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Más Links sobre Loftin&White

[url="http://www.novacon.com.br/audioampdelof2.htm"]http://www.novacon.c...ioampdelof2.htm[/url]
[url="http://www.px4.org/px4_my_loftin.html"]http://www.px4.org/px4_my_loftin.html[/url]
[url="http://www.vintage-radio.net/forum/showthread.php?p=183871"]http://www.vintage-r...ad.php?p=183871[/url]
[url="http://diyaudioprojects.com/Schematics/2A3-Loftin-White-Tube-Amplifier-Schematic.htm"]http://diyaudioproje...r-Schematic.htm[/url]
[url="http://home.earthlink.net/~jeremyepstein/freelunch.html"]http://home.earthlin.../freelunch.html[/url]
[url="http://www.ispra.net/audio/DCSingleEndedAmplifier/index.php"]http://www.ispra.net...ifier/index.php[/url]
[url="http://rl12t15.blogspot.com/"]http://rl12t15.blogspot.com/[/url]

[img]http://img546.imageshack.us/img546/6307/radionews.jpg[/img]

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[img]http://img849.imageshack.us/img849/2594/dsc00223k.jpg[/img]




[url="http://www.radiomuseum.org/r/lafayette_loftin_white_250.html"][img]http://img825.imageshack.us/img825/1852/dsc00224mi.jpg[/img][/url]

[img]http://img515.imageshack.us/img515/3673/loftinwhite.jpg[/img]

[img]http://img825.imageshack.us/img825/9921/nfverstarkerew839841.jpg[/img]



[url="http://www.radiomuseum.org/r/lafayette_245_loftin_white.html"]http://www.radiomuse...ftin_white.html[/url]
[url="http://www.radiomuseum.org/r/lafayette_loftin_white_250.html"]http://www.radiomuse..._white_250.html[/url]
[url="http://www3.sympatico.ca/wenchieh/2A3_schematics/"]http://www3.sympatic...2A3_schematics/[/url]

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Versiones modernas del diseño Loftin & White

[img]http://img607.imageshack.us/img607/1668/asano2a3original.jpg[/img]



[url="http://www.eifl.co.jp/index/export/asano.html"]http://www.eifl.co.j...port/asano.html[/url]




[img]http://img37.imageshack.us/img37/1800/2a3new1a.jpg[/img]


[url="http://www.bluebellaudio.com/examples8.htm"]http://www.bluebella...m/examples8.htm[/url]


[img]http://img109.imageshack.us/img109/2174/p1010003py.jpg[/img]


[url="http://www.tubeaudiolab.com/id193.html"]http://www.tubeaudiolab.com/id193.html[/url]



[img]http://img3.imageshack.us/img3/5280/m1011.gif[/img]


[url="http://item.rakuten.co.jp/acc-t/m-101/"]http://item.rakuten.co.jp/acc-t/m-101/[/url]



[img]http://img703.imageshack.us/img703/7773/1right.jpg[/img]


[url="http://amps.abraxasaudio.net/projects/807-se2/"]http://amps.abraxasaudio.net/projects/807-se2/[/url]

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muy bonita la version en madera, el alambrado punto a punto merece un premio por lo ordenado y pulcro del trabajo

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Válvulas en el circuito Loftin and White 50
Driver

[img]http://img825.imageshack.us/img825/1287/rc1029.gif[/img]

Tubo final

[img]http://img708.imageshack.us/img708/6829/rc1068.gif[/img]



[img]http://img59.imageshack.us/img59/1555/250loftinwhite682419.jpg[/img]

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Válvulas del Loftin & White 45

Driver

[img]http://img818.imageshack.us/img818/1287/rc1029.gif[/img]

Tubo final

[img]http://img21.imageshack.us/img21/1848/rc1060.gif[/img]


[img]http://img820.imageshack.us/img820/3240/245loftinwhite682417.jpg[/img]


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[img]http://img585.imageshack.us/img585/1668/pittsburghpostgazette.gif[/img]

Artículo publicado el 16 de marzo de 1930 sobre el circuito Loftin & White

[url="http://news.google.com/newspapers?nid=1144&dat=19300316&id=9EsbAAAAIBAJ&sjid=L0sEAAAAIBAJ&pg=2333,4365355"]http://news.google.com/newspapers?nid=1144&dat=19300316&id=9EsbAAAAIBAJ&sjid=L0sEAAAAIBAJ&pg=2333,4365355[/url]

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hace 47 minutos, marianisimo dijo:

otro amigable saludos para @MartinV56 que tanto nos ha enseñado en este foro.

MH

x2             :beerchug:

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