DX-60 Kit: Modern Equivalents

[Ron]

paul hendershott wrote:
> Hi Folks! I will be building (yes, and no doubt lowering the
> value of) a Heath DX-60 xmtr kit. I want to order all new 
 > resistors and capacitors and replace them with their modern
 > equivalents.

Why? I would only replace bad caps and then,
for the same type, except for tubular paper
caps that can be replaced with any film caps
(polypropylene are the best for stability).
Feed through caps MUST NOT be replaced with
anything else. Silver mica are excellent
(probably the best) when the lowest impedance
at high frequencies is called for. Low cost
ceramics may be substituted with NPO or other
higher stability ceramic types.

I would check electrolytics before construction.
If leaky, I would try to form. If unsuccessful,
then I would replace.

-- Ron


> There are a few different types of caps I need help with.
> What should i replace the following Cap types with?
>  
> Molded Mica
> Silver Mica
> Disc Ceramic
> feed-through
> tubular
>  
> Thanks! 
> 73
> Paul

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