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Audio and Video Talk
Valves / Vacuum Tubes
Triode-connected EF86
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<blockquote data-quote="handsome" data-source="post: 935103" data-attributes="member: 772"><p>a good way to eyeball linearity besides the ubiquitous plate curves is to look at the graphs (if offered) of mu versus grid voltage. This basically shows changes of gain versus signal level (far quicker than drawing a loadline which shows the same thing) - in other words does your device amplify more or less depending on signal level? We always assume mu to be a constant. Very linear devices show a pleasingly straight line where they are most linear and thus where they should be operated. Change of gain over signal level is essentially distortion. See graphs of the 6SN7...</p></blockquote><p></p>
[QUOTE="handsome, post: 935103, member: 772"] a good way to eyeball linearity besides the ubiquitous plate curves is to look at the graphs (if offered) of mu versus grid voltage. This basically shows changes of gain versus signal level (far quicker than drawing a loadline which shows the same thing) - in other words does your device amplify more or less depending on signal level? We always assume mu to be a constant. Very linear devices show a pleasingly straight line where they are most linear and thus where they should be operated. Change of gain over signal level is essentially distortion. See graphs of the 6SN7... [/QUOTE]
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Audio and Video Talk
Valves / Vacuum Tubes
Triode-connected EF86
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