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Audio and Video Talk
Valves / Vacuum Tubes
Radford STA 15 Technical Discussion
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<blockquote data-quote="Ampdog" data-source="post: 1043089" data-attributes="member: 144"><p>Handsome!</p><p></p><p>Thanks for 'joining' on this topic, which yielded some contradictions in the past, but never an acceptable explanation! As mentioned before, this surprised me as other forums had many E.E.s as members.</p><p></p><p>Continuing with some thread-jacking: The Schmitt phase inverter was often used without an input buffer (if I may call it thus). Many successful circuits exist (e.g. all the Leaks and the classic Mullard circuits) without such a buffer. In my own former life I built several like circuits without requiring cathode followers after the 1st stage - but no quibble. Again the un-pentode pentode circuits are the puzzle.</p><p></p><p>I will put up the subject again in other major forums, hoping to get better replies than that it 'does not seem' to matter while Spice analysis clearly shows that it does! Perhaps academic - still . . . .</p><p></p><p>Back to topic!</p></blockquote><p></p>
[QUOTE="Ampdog, post: 1043089, member: 144"] Handsome! Thanks for 'joining' on this topic, which yielded some contradictions in the past, but never an acceptable explanation! As mentioned before, this surprised me as other forums had many E.E.s as members. Continuing with some thread-jacking: The Schmitt phase inverter was often used without an input buffer (if I may call it thus). Many successful circuits exist (e.g. all the Leaks and the classic Mullard circuits) without such a buffer. In my own former life I built several like circuits without requiring cathode followers after the 1st stage - but no quibble. Again the un-pentode pentode circuits are the puzzle. I will put up the subject again in other major forums, hoping to get better replies than that it 'does not seem' to matter while Spice analysis clearly shows that it does! Perhaps academic - still . . . . Back to topic! [/QUOTE]
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Audio and Video Talk
Valves / Vacuum Tubes
Radford STA 15 Technical Discussion
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