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Audio and Video Talk
Valves / Vacuum Tubes
Mars 5-10 stereo - update
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<blockquote data-quote="Ampdog" data-source="post: 1076063" data-attributes="member: 144"><p>Hi Fredeb!</p><p></p><p>Careful here! The distortion figure given is just for the input and driver part! The main distortion comes from the power valves and output transformer! </p><p></p><p>Then again I am not too sure why everybody wishes to go for as little NFB as possible. Yes: Too much NFB increases the possibility of instability, but other than that there is no disadvantage. one must remember the effect of NFB on damping factor and valve differences. The designer has absolute control over the effects of NFB. (I hope that ancient lore like 'feedback sounds bad' and such is not still entertained.)</p><p> </p></blockquote><p></p>
[QUOTE="Ampdog, post: 1076063, member: 144"] Hi Fredeb! Careful here! The distortion figure given is just for the input and driver part! The main distortion comes from the power valves and output transformer! Then again I am not too sure why everybody wishes to go for as little NFB as possible. Yes: Too much NFB increases the possibility of instability, but other than that there is no disadvantage. one must remember the effect of NFB on damping factor and valve differences. The designer has absolute control over the effects of NFB. (I hope that ancient lore like 'feedback sounds bad' and such is not still entertained.) [/QUOTE]
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Audio and Video Talk
Valves / Vacuum Tubes
Mars 5-10 stereo - update
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