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Grupos de noticias: sci.electronics.repair
De: Tim Schwartz <t...@bristolnj.com>
Fecha: Thu, 05 Nov 2009 07:47:25 -0500
Local: Jue 5 nov 2009 09:47
Asunto: Re: 12AX7, 7025, ECC83. ETC
captainvideo462...@yahoo.com wrote: Dave, > I have a Fender reissue model guitar amp in for service. It has 2 > Fender 12AX7's that are microphonic. These are Chinese manufacture. I > have replaced them with 5814's which is some sort of 12AU7 type just > to get the amp working. There is no more microphonic problem, however > the amplifier sensitivity is now somewhat lower so perhaps that may > have a bearing on this. I realise that I have no 12AX7's in the shop > at all and would like to buy several, two for this amplifier and two > or three for stock. I was looking at NOS and JAN types online and > would like to go with either but I suffered real sticker shock when I > noticed the prices. I don't have much faith in the Russian or Chinese > tubes so I was hoping that someone could offer some advice as to a > source for good preamp tubes either new or tested used, and ones that > I don't have to worry about microphonics. Thanks, Lenny. I've had good success with the JJ/Tesla tubes (from Slovakia as I Regards, Debes registrarte antes de enviar mensajes.
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