In Reply to: RE: 2A3 Driver Stage , PSUD2 posted by horny on March 11, 2015 at 13:03:43:
No, you need the small first cap with the value of your power transformer's secondary, to get the high enough voltage to run the 2A3. The 222 VDC with no C1 won't be adequate, as you can see above, and the supply is no longer looking as nice, it overshoots.
With large chokes, high in DCR, having large storage capabilities, and large caps, you can not get a fast-settling supply in a double L/C series arrangement, as far as I can tell.
WE have not even looked at the Finals' supply, have we ?? !!
The voltage drop has to do with the impedance of the supply, the less the voltage drop, for a given current change, the " better" the supply is, the lower in Z it is. Has to do with Ohm's Law R equals V over I.
HTH.
Jeff Medwin
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Follow Ups
- RE: 2A3 Driver Stage , PSUD2 - drlowmu 13:49:43 03/11/15 (0)