Wanted - AR-15 manual

[Alex [Temple-Heath List]]

At 05:24 PM 3/3/2007, you wrote:
>I haven't done any repair work in a long time. What is the best to 
>replace the "tantalum" capacitors with?
>
>Thanks

Hi Douglas,

Tantalum caps are widely available, so if at all possible, substitute 
caps with the same type and rating. If a tantalum is being used in a 
non-critical application like filtering a supply rail, you could 
safely use a electrolytic that has the same or better specs then the 
original. Tantalums being quite stable are favored in timing 
circuits, so in that kind of application I would try to stick to the 
same type, although a electrolytic would certainly also work, even 
though accuracy might be affected, but at least it will let you test 
the circuit to rule out the cap as a possible suspect. Another virtue 
of the tantalums is their relative small size for a given 
capacitance, so if it is used in a tight spot, a electrolytic might 
not fit physically.

Hope that helps.
-Alex

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