Does anyone have these/know where I can find them?

Sherwoods traditionally will turn on with on input command (and go to that input) the same way Sonys and Integras do.

I had an install with sherwood receivers. RD-4105 and RD-7405HDR. Neither would respond to either set of my power codes. (Come to think of it, they only responded to the power commands, and I had to learn the entire remote of both).

I have two sets of Sherwood discretes. As I mentioned above, these codes, though they were listed for the receivers above, did not work for them. I had to call an input, wait 6 seconds, then call power for my "discrete" off.

You can try this first set:

P-On

0000 006E 0000 0022 0155 00AA 0015 0040 0015 0040 0015 0015 0015 0015 0015 0015 0015 0015 0015 0015 0015 0040 0015 0040 0015 0015 0015 0040 0015 0015 0015 0015 0015 0015 0015 0040 0015 0015 0015 0015 0015 0040 0015 0040 0015 0015 0015 0015 0015 0040 0015 0015 0015 0015 0015 0040 0015 0015 0015 0015 0015 0040 0015 0040 0015 0015 0015 0040 0015 0040 0015 0644

P-Off

0000 006F 0000 0022 0153 00A9 0015 0040 0015 0040 0015 0015 0015 0015 0015 0015 0015 0015 0015 0015 0015 0040 0015 0040 0015 0015 0015 0040 0015 0015 0015 0015 0015 0015 0015 0040 0015 0015 0015 0015 0015 0040 0015 0015 0015 0015 0015 0015 0015 0040 0015 0015 0015 0015 0015 0040 0015 0015 0015 0040 0015 0040 0015 0040 0015 0015 0015 0040 0015 0040 0015 063C

I think you will have better luck with the anchor power discussed above the hex.