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Mark Mark is offline
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Default Simple Test Circuit for Tube Noise

On Sep 10, 5:45*pm, PStamler wrote:
On Sep 10, 4:16*pm, Mark wrote:

On Sep 10, 5:02*pm, (Scott Dorsey) wrote:


wrote:
Can anyone suggest a simple circuit to measure vacuum tube noise? *


if you want low noise, why are you using tubes...


It's entirely possible to get low noise from tubes, IF you do the
design right and if the source impedance is appropriate (high).



true enough,

but if you put an equal amount of effort into the design and impedance
using a low noise FET, it will beat the tube hands down...

Mark