(I'm sending this again because it doesn't seem to have made it to the list when I sent it before.) YK Gian wrote: > Any other ideas? Yes. Try tracing just a 50 ohm resistor on the curve tracer. If this gives you the same results, your curve tracer may be at fault. If everything is working right, you should see a straight line with the 50 ohm resistor, but it should be diagonal ... not vertical or horizontal (stuck at 0V or 5V). Regards, Andy > Andy, Patrick, Tom and all, > > This time I tried curve tracing a simple HC02(NOR gate) device to get a > feel how the curve would look like before proceeding to more complex > device. However, I am getting a similar result to what I've seen earlier. > I am pretty sure that:- > > 1) the curve tracer is connected to the output pin > 2) I've tried changing the current scale from uA to A > > Any other ideas? > > Appreciate your help. > YK Gian ------------------------------------------------------------------ To unsubscribe from si-list: si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field or to administer your membership from a web page, go to: //www.freelists.org/webpage/si-list For help: si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field List technical documents are available at: http://www.si-list.org List archives are viewable at: //www.freelists.org/archives/si-list or at our remote archives: http://groups.yahoo.com/group/si-list/messages Old (prior to June 6, 2001) list archives are viewable at: http://www.qsl.net/wb6tpu