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4uF...

...is suggested for CV378 but if you compare max repetitive peak current to that specified for 5AR4 you'll find the values identical. Since input cap value along with plate supply impedance are the significant determinants of max peak current, it's pretty safe to conclude that max cap value for CV378 is identical to that of 5AR4 at 60uF under identical conditions. Either way, 1200uF as called out in the schematic is grossly excessive...assuming of course that plate supply impedance is conventional.


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  • 4uF... - Steve O 09:07:04 12/30/15 (1)

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