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Audio and Video Talk
Valves / Vacuum Tubes
Small vacuum tube integrated for desktop use
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<blockquote data-quote="sailor" data-source="post: 1122108" data-attributes="member: 1530"><p>Looking at the photos of your transformer orientation tests I notice there is one set up you did not try. You never moved the mains Tx.</p><p></p><p>Look at your photo where the meter reads 0.212 </p><p>Leave the OTx. as it is and rotate the power unit so the directions of the laminations run front to back. In other words it will be positioned like the unused OTx on the right-hand side. </p><p></p><p>It would be useful to try the same thing with the left side OTx where your meter reads 0.14</p><p></p><p>The <strong>coils</strong> on the 2 units being measured will then appear to be the way the links on a chain lie. Doing the same thing with crossover coils, feeding one with pink noise and watching how it couples with an undriven coil on an o'scope is very informative and clearly audible.</p><p></p><p>I experimented many years ago with 807's and found sounded better with an octal, got great sound with a 6SL7</p></blockquote><p></p>
[QUOTE="sailor, post: 1122108, member: 1530"] Looking at the photos of your transformer orientation tests I notice there is one set up you did not try. You never moved the mains Tx. Look at your photo where the meter reads 0.212 Leave the OTx. as it is and rotate the power unit so the directions of the laminations run front to back. In other words it will be positioned like the unused OTx on the right-hand side. It would be useful to try the same thing with the left side OTx where your meter reads 0.14 The [B]coils[/B] on the 2 units being measured will then appear to be the way the links on a chain lie. Doing the same thing with crossover coils, feeding one with pink noise and watching how it couples with an undriven coil on an o'scope is very informative and clearly audible. I experimented many years ago with 807's and found sounded better with an octal, got great sound with a 6SL7 [/QUOTE]
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Audio and Video Talk
Valves / Vacuum Tubes
Small vacuum tube integrated for desktop use
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