wrote in message
ps.com...
On 7 Nov, 20:40, "robb" wrote:
...

As someone else pointed out, 73 ohms at 5V means a static draw
of 5/73
= (about) 68 mA, which for a digital circuit sounds reasonable
imho.
It is definitely not a short. What's the fuse rating on the 5V
rail?


the fuse was a "T 630 mA 250v" so slow blow bussman type fuse

originally the 5v fuse blew i checked transformer out put then
replaced and powered and then all three fuses blew the 5v 12v 30v

maybe i need to take a closer look at the power regulators again

thanks for help,
robb