Yes, this is the alternate we now use for the main K2 MCU. 73, Eric WA6HHQ --- Jim Shaver wrote: > > U6 on the Control board K2 : > Appendix A pg 3 states it's PIC16C77-04/SP. The part I have left is > PIC18C452-I/P. This is listed as an alternate. ???? I rechecked the > addendum sheet, but no help. > Jim Shaver > K7VFR