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Audio and Video Talk
Valves / Vacuum Tubes
Single Ended 6L6 amplifier
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<blockquote data-quote="fredeb" data-source="post: 811445" data-attributes="member: 13623"><p>Karels design is adapted from this : <a href="http://diyaudioprojects.com/Schematics/Mikael-Abdellah-SE-KT88-Amplifier.htm" target="_blank">http://diyaudioprojects.com/Schematics/Mikael-Abdellah-SE-KT88-Amplifier.htm</a></p><p></p><p>I assume that the B+ for the 6L6 is lower than the 400V used for KT88 . Karels schematic has much lower value cathode biasing resistor , so I would assume a lower B+ , perhaps 300V - 350V ? ( by looking at SE Class A specs in datasheet below )</p><p></p><p>One also has to ask , which 6L6 , as the power rating between a 6L6 and 6L6GC vary greatly . </p><p></p><p><a href="http://www.r-type.org/pdfs/6l6.pdf" target="_blank">http://www.r-type.org/pdfs/6l6.pdf</a></p><p></p><p>Here's a handy online calculator to play with : <a href="https://robrobinette.com/Tube_Bias_Calculator.htm" target="_blank">https://robrobinette.com/Tube_Bias_Calculator.htm</a></p></blockquote><p></p>
[QUOTE="fredeb, post: 811445, member: 13623"] Karels design is adapted from this : [url=http://diyaudioprojects.com/Schematics/Mikael-Abdellah-SE-KT88-Amplifier.htm]http://diyaudioprojects.com/Schematics/Mikael-Abdellah-SE-KT88-Amplifier.htm[/url] I assume that the B+ for the 6L6 is lower than the 400V used for KT88 . Karels schematic has much lower value cathode biasing resistor , so I would assume a lower B+ , perhaps 300V - 350V ? ( by looking at SE Class A specs in datasheet below ) One also has to ask , which 6L6 , as the power rating between a 6L6 and 6L6GC vary greatly . [url=http://www.r-type.org/pdfs/6l6.pdf]http://www.r-type.org/pdfs/6l6.pdf[/url] Here's a handy online calculator to play with : [url=https://robrobinette.com/Tube_Bias_Calculator.htm]https://robrobinette.com/Tube_Bias_Calculator.htm[/url] [/QUOTE]
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Audio and Video Talk
Valves / Vacuum Tubes
Single Ended 6L6 amplifier
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