Well the Canon 8.1V PSU is coming along...slowly.
ATM it's now in it's box & am waiting for the Canon DRE5 adaptor to arrive.
Most places are drop shipping so ....it's a waiting game.
Any way here are some pics. I added a switch that has an inbuilt LED but I didn't do a resistor on the cct board for this...silly me. Anyway...no problems as the cct board had a ground plane to drill into.
Soon...I'll be in "no battery heaven"!
I must again thank Martin for his most excellent help on this. This TI switching regulator is "a champ"! Something I was not looking at because of pre-conceived bias against switching regulators.
I was soooo wrong!