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Audio and Video Talk
Valves / Vacuum Tubes
single-ended cathode follower output stage
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<blockquote data-quote="noob" data-source="post: 911344" data-attributes="member: 21677"><p>Hallo Mars, Hallo Everybody! <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /></p><p></p><p>I am very much interested in this CF amp and I am thinking of making one.</p><p>My experience with cathode followers is limited to a preamp output stage.</p><p>I mean: I really have no idea how a CF power amp could work :-[ :roll: </p><p>Any kind of help or suggestion will be highly appreciated <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite8" alt=":D" title="Big grin :D" loading="lazy" data-shortname=":D" /></p><p></p><p>My main concern is power output, maybe it is really too low,</p><p>have you ever measured it?</p><p></p><p>In the RC coupled version this amp should swing very few Volts on the output tube cathode, </p><p>the schematic does not tells how many, but my guess is somewhere between 20 and 30 Volts.</p><p>so my guess is that power should be well below 1/2 Watt :thinking:</p><p></p><p>Maybe the DC coupled version has some more power? </p><p>Cathode is +85V from ground, does this mean that - in teory - it can swing 85V peak to peak?</p></blockquote><p></p>
[QUOTE="noob, post: 911344, member: 21677"] Hallo Mars, Hallo Everybody! :) I am very much interested in this CF amp and I am thinking of making one. My experience with cathode followers is limited to a preamp output stage. I mean: I really have no idea how a CF power amp could work :-[ :roll: Any kind of help or suggestion will be highly appreciated :D My main concern is power output, maybe it is really too low, have you ever measured it? In the RC coupled version this amp should swing very few Volts on the output tube cathode, the schematic does not tells how many, but my guess is somewhere between 20 and 30 Volts. so my guess is that power should be well below 1/2 Watt :thinking: Maybe the DC coupled version has some more power? Cathode is +85V from ground, does this mean that - in teory - it can swing 85V peak to peak? [/QUOTE]
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Audio and Video Talk
Valves / Vacuum Tubes
single-ended cathode follower output stage
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