The tantalums are much preferable due to better temp coefficient and better
stability.   You can make a non-polarized cap by connecting two caps
(preferably of the same capacitance and voltage range) "back to back" (e.g.
 connect  the two "+" sides together and connect the "-" wires to the
points on the AFM.    You can also use nonpolarized caps if you check the
voltage at the AFM connections and install the cap with the "+" side to the
AFM connection that measured positive.

Dave

At 06:53 PM 1/15/99 -0500, Dave Caston & Sherrie Payne wrote:
>I just visited my FLRS to purchase the capacitor for the AFM addition.
>
>There are two types:
>tantalum (non-polarized)
>&
>electrolytic (polorized)
>both are 22mfd and 35vdc
>
>They carry the electrolytic in stock but would have to order tantalum kind.
>Which one do I buy?
>Does it really make a difference?
>What is the importance of the voltage if any?
>Should I buy 10, 22, or 35 vdc?
>
>Thanks,
>
>Dave Caston & Sherrie Payne
>Two nuts hangin' in the Allentown,PA tree!
>E-Mail: cdcaston@nni.com
>