[AMRadio] DRIVER XFMR UPDATE

[W2CAU at aol.com]

In a message dated 2/21/03 9:23:48 PM Eastern Standard Time, kc8jx at yahoo.com 
writes:


> If it's impossible to find 125 mfd's (which I doubt...they can
> be found), then you can put two, say 65's or 75 mfd, in series to replace 
> each
> 125mfd's. 
> 

Nope... capacitors are not like resistors.  putting them in series will halve 
the total value, not double them.  To get the equivalent value of two in 
series, you have to use caps twice the value.  In this case, you'd put (2) 
250 ufd caps in series to get the equivalent of 125 ufd.  It's advisable to 
also put equalizing resistors across each cap to make sure that the voltage 
division is equal to prevent one cap from having a higher-than-rated voltage 
across it. 

Eric, W2CAU


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