A kit that replaces all of the old electronics with a solid state circuit board and the flashtube with a high power LED is available for Sun machines. Cost is less than what the flashtubes go for, if you can even find one. You can contact me if interested.
There are many old Sun Distributor Testers that just need the strobe light replacing to be operational again. But those lights are near impossible to find and fairly expensive if you do find one. I designed a solid state circuit which uses a high power LED to replace virtually all the old...