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RE: Too low plate R value for a triode ? and CCS substitution?

Depends on the application. For plate loads it's hard to beat the simplicity of the cascode MOSFET. K&K Audio's kits are very convenient and cheap. Highly recommended. The IXYS MOSFETs that Kevin uses sound better in this application than DN2540s. Do note that these CCSs work best with currents in excess of 10mA and voltages greater than 30V across them. Although I have had good results using them as plate loads for 6SN7s with only 4.5mA. As to the voltage, in addition to the 30V for the CCS you will need to allow for the signal swing. E.g. if you require 20V peak to peak signal swing then you would need 50V across the CCS.

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  • RE: Too low plate R value for a triode ? and CCS substitution? - JKT 12:18:56 03/28/17 (0)


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