[Coco] Capacitor question

[Jim Cox]

On Sun, 26 Sep 2004 10:01:31 -0500
  Mannequin* <mannslists at invigorated.org> wrote:
>On Sun, 26 Sep 2004 07:43:40 -0700
>"Jim Cox" <jimcox at miba51.com> wrote:
>
>
>> >Thanks, Jim. I was thinking along the same lines, but 
>> >wanted to be sure that I
>> >couldn't use them at all. When I purchased the caps 
>>from 
>> >Radio Shack, I couldn't
>> >see the voltage on those suckers very well... and those 
>> >were the only caps of
>> >that nature at the store. So I'm back to square one. 
>> >Needing to find two 25v
>> >220uf caps. Any suggestions?
>> >
>> >I have another question about the caps. Why did Tandy 
>>use 
>> >two
>> >physically different size caps when they are both 25v 
>> >220uf? Why not just use
>> >the smaller size and be done with it?
>
>> Mannequin:
>> 
>> I think you misunderstood me.  If the replacement caps 
>>are 
>> rated at 35V, and the originals are rated at only 25V, 
>> then use the 35V caps.  The only difference is that the 
>> replace caps can handle a higher voltage.
>> 
>> As for you second question, I haven't looked a CoCo 
>> motherboard in a quite a long time, but sometimes the 
>>size 
>> of cap may be due to the physical space available on the 
>> board layout or is an indicator of a different type of 
>> cap.
>> Then again, they could be from different vendors.
>> 
>> Jim
>
>D'oh! I knew I should have re-read your reply before 
>replying! ;)
>
>Okay, So I should be able to replace those caps with the 
>35v ones. One more
>follow up question: If I keep the leads long so I can lay 
>them over, should I
>protect them or the cap with black tape in any way? If 
>so, where?
>
>Thanks again.
>
>-M.

Mannequin:

I despise black electrical tape, but that just my personal 
choice.  It tends to lose it's ability to stick over time 
and leave residue on the board and other components.

If you have to leave the leads long, then you can leave 
them bare and take a small risk.  You can use srink tubing 
on the leads, but that can be tedious and you need a heat 
gun or hair drier.  You can also use something like super 
glue which is nonconductive to insulate the leads.  That 
latter may seem too permanent, but that stuff can be 
removed easy enough.  

If you want to use electrical tape, that is fine, just try 
to be neat so the tape doesn't come off.

Jim