[Coco] HD power supply

[Rogelio Perea]

That was my worry when I added the 2nd drive to my FD-502 setup, the user
manual had the procedure to upgrade and the cooling fan was noted as
essential for the upgrade to work.

My upgrade was not the Tandy product but a spare I had from a Intel machine
- a generic HH drive.

I installed the drive with no fan and decided to try it out for a while,
this was back in 1989 and to this date the lack of the fan has not been an
issue, not even under heavy floppy drive usage (OS9 L2 on my CoCo 3).

Could be that the power requirements from both drives are just a tad below
the power supply capabilities, maybe a bit more and the thing just wouldn't
work.


-=[ Rogelio ]=-


On Sun, Mar 1, 2009 at 4:04 PM, Bruce W. Calkins wrote:

>
> The Tandy FD-501 and 502 drives were a little light on the power
> capability. If you got the Tandy second drive kit they added a chintzy fan
> to keep things cool enough to function.  And we all know that Tandy never
> put anything into cooling, unless it burned them first.
>
> Bruce W.