BigJim
had a play with this old Joystick and found a bad thing for upgrading
They seem to use the forward voltage as a heat senser and dim the light if it gets warm , what wrong with that you may say ( I did )
well the old led has a VF of around 3.4 volts and as they get hotter the forward voltage comes down .
when I swopped the led for a XML which has a forward voltage of under 3 volts at the joystick drive current it came on brighter and then dimmed 😥
so its looking like to upgrade one it will need a new driver as well as a new led .
Space is very tight but am now looking at shoehorning the same Lflex driver I use for the hopes in .
I think the optic will work well with an XML .
ir_bandito it better out dazzle the Bastids
The good news is I have got hold of 6 more drivers for the Hopes so will mail the next six on the list and give them first refusal .