ROBERT SAYRE wrote in a message to JASEN BETTS:

JB>  Hmmmm, it gets worse...

JB>     What's this one called?
JB>     _______________________ +
JB>        |               |
JB>        |               |
JB>      |/'               |
JB>    --|~              -----
JB>      |\              ~~T~~
JB>        |     output    |
JB>        |-----o    o----|
JB>        |               |
JB>      |/'               |
JB>    --|               -----
JB>      |\,             ~~T~~
JB>       ~|               |
JB>        |               |
JB>    ~~~~~~~~~~~~~~~~~~~~~~~~ -

RS>  A waste of a capacitor? 

I've often wondered about that.  Amps with split supplies like that which
also have two capactors in series like that are effectively getting half
the capacitance value,  with them in series like that.  Why not use one big
cap across the whole thing?

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