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In Reply to: RE: Question about higher power hybrid amplifier output stage posted by Tube747 on June 01, 2016 at 11:12:44
Solid-state naïve here. But, could you replace the MOSFET pair with higher output devices? Adjusting the parameters.
Follow Ups:
2SK1058 is a lateral MOSFET , which are pricey to begin with . Finding a similar device with twice the power will mean a very expensive part which will no doubt just have a pair of dies wired in parallel internally . Also , the higher the dissipation , the more intrinsic capacitance . The design is probably best used as-is
Al
How much power output can you predict from 3 pairs of 2SK1058 based on the same cirlotron circuit?
Also, whether the same D3a driver stage able to drive 3 pairs 2SK1058 for the same circlotron output stage?
3 pairs of MOSFETS will mean a lot more capacitance for the driver . I would also check to see just how those ITs like to be loaded . Why don't you email the designer and ask his opinion on adding extra MOSFETS ?
Al
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