- cntr/cntr.sch: LED part number is LTST-C190KRKT, not LTST-C190KTKR
- cntr/cntr.sch: changed Vdc of VR4 from 5.6 V to 5.5 V (to match EPCOS
CT0603M4G
- cntr/cntr.sch: changed VR1 through VR3 to 0402 for lower capacitance
quite formidable low-pass filter that almost completely eliminated the
1 MHz signal.
- cntr/cntr.sch, cntr/cntr.brd: changed R1 from 100k to 1k to increase
input bandwidth