[Coco] CoCo 2 repair - Transformer?

[Michael Graham]

Hi!

I think you're looking at the specs on the transformer in the wrong 
way.  You're measuring 10.8V on each side of the tap, but that wouldn't 
make it a 10.8V transformer, that would make it a 21.6V transformer.

It probably is actually a 17.5V center-tapped transformer, but you're 
measuring 10.8V instead of 8.75V on either side of the tap because the 
CoCo isn't drawing the full amount of current for which the transformer 
is rated.

--Michael


On 12/23/2014 6:52 PM, Chad H wrote:
> In trying to identify potential replacement sources for power supply parts
> I've yet to pin down one for the power transformer in my primary CoCo 2.  It
> seems to be the same one in the 26-3027 as in the 26-3127 but there is no
> label on the transformer itself.  The technical reference I found for the
> 26-3136 talks about a 17.5vac transformer but when I measured my 26-3027
> secondaries I got approximately 10.8vac on each point to center.  I tested
> with the unit on and with it off, not much difference.  I was wondering if
> the following might be a possible candidate.
>
>   
>
> http://tinyurl.com/lcwp2hp
>
>   
>
>   
>
>    Can someone tell me if I'm on the right track?  Thanks!
>
>   
>
> -          Chad
>
>