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|    sci.electronics.basics    |    Elementary questions about electronics    |    72,318 messages    |
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|    Message 70,589 of 72,318    |
|    Les Cargill to jurb6006@gmail.com    |
|    Re: A balanced 12AX7 based buffer    |
|    12 May 18 12:48:28    |
      From: lcargill99@comcast.com              jurb6006@gmail.com wrote:       > You can use a lower voltage if that's the idea. in fact you'll       > probably have to if you want low enough value plate resistors to       > directly drive the mixer or whatever. Making balanced is no sweat,       > feed the grid of one side, bypass the other and tie the cathodes       > together.       >       > I don't usually send people other places but Audio Asylum has a       > "tubes DIY" section for people who build their own amps and other       > tube equipment. Some of them guys are pretty sharp and can probably       > give you good answers. They are also familiar with balanced lines but       > it might not be the same impedance, so tell them the impedance.       >              That's a good lead - thanks for that.              > The site charges nothing, installs nothing but a cookie, and the only       > password requirement is 6 characters. Quite easy to deal with. And it       > has image hosting for attachments to posts so if you don't, you can       > post an electronics question there and if you wanted to display the       > picture somewhere for people here for example, you can just stick the       > URL in your post. That will reveal your nick there but so what,       > people can get your real email here.       >       > It does sound doable though, but the ECC83 might not be the best tube       > for it. They might recommend a 6SN7 or whatever.              Interesting. I just figured those were easy to find.              > If you don't use an       > output transformer I think the tube will be feeding a lower impedance       > than it likes, but I think it will do it.       >              I appreciate it.              --       Les Cargill              --- SoupGate-Win32 v1.05        * Origin: you cannot sedate... all the things you hate (1:229/2)    |
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