Gloria in Excelsis (common base VAS)

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the problem with low feedback amplifier is the current circulation of IPS
to enhance this flow is sufficient to convert the VAS with common base:)

Now you can dramatically reduce the negative feedback
and have a thicker sound and airy at the same time;)
 

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  • COMMON BASE VAS.PNG
    COMMON BASE VAS.PNG
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  • CALIDARIVM AMPLIFIER.PNG
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10 mA into each stage

I think that increasing the current that circulates in the IPS can increase the bass reproduction

consequently it is possible to reduce the negative feedback and thus obtain greater expansion of the high tones

the common base solution allows you to adjust the (same) operating point independently
 

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  • VBE 2SA1015 IC.PNG
    VBE 2SA1015 IC.PNG
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  • COMMON BASE VAS.PNG
    COMMON BASE VAS.PNG
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