3 Jun
2007
3 Jun
'07
12:59 p.m.
Chuck,
That jumper is simple enough to put in there.
I could even add a note in the silkscreen on how to jumper this.
Any other power circuitry would have to be left up to the user.
I like to stick with the basics for now.
=Dan
[ My Corner of Cyberspace http://ragooman.home.comcast.net/ ]
Chuck Guzis wrote:
On 3 Jun 2007 at 12:46, Dan wrote:
I was trying to convey that point about the
filtering, which is one
reason why to have a higher output voltage on the transformer, eg. 10v
versus 8v...
Dan, why not just include a couple of pads for a jumper around the
78xx, just in case the user has a regulated supply? AFAIK, that would
definitely be a minority of S-100 systems deployed. I suppose one
could, for the 5 volts, add an overvoltage crowbar circuit or even
just a 6v zener and fuse if leaving the jumper on by mistake was a
concern (which it probably shouldn't be).
Cheers,
Chuck