Peter, I think that agrees with what I am seeing. I measured the load and in fact it is 20K ohm. I also tried an AUX 5 V supply, and as John said, it made almost no difference (went up by about 1/2 mA). The 5V looks to be good, there is other general I/O which all are working fine.
I also connected a 9V battery directly to the load, and that does work. So it appears to be related to the current, although there is a big difference between 20 the mA available from the Mesa board and that available in a 9V battery. Thanks, Eric With all full scale outputs into 10K thats only 4 mA max from the +-OP amp supply. The +- OP amp power supply is capable of about 20 mA. Either its a bad 7I33, Your load is more than expected, or you do have a 5V power droop. I would check the 5V at the 7I33 card first. ------------------------------------------------------------------------- Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://ad.doubleclick.net/clk;164216239;13503038;w?http://sf.net/marketplace _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
