> LM324's? No problem!  Newer stuff is, well, newer stuff!

What turned out to be an op-amp problem drove me batty
yesterday. Making an electret mic pre-amp (part of the ISD
project). Simple enough, but couldn't get rid of a spike that
always happened on the rising quadrant of a wave cycle. Had
the circuit apart, added things, took things away, single-ended
supply, split rail, hit the web, no change. Only when I swapped
the op-amp for a dirty old 741 would it work cleanly. NE5534,
TLC271, TL071, no good. All had the spike. Weird and very
frustrating

-- 
http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist