RE: 28% Extra Special 300
Cirrus is a name from waaay back. Mid to late 70's through the 80's. They were originally produced by Futaba, along with the Cirrus 4 and 6 channel radios for the old Hobby Shack chain. They were an excellent product in their time, being just a renamed Futaba radio/servo with slightly different packaging. That was then, this is now, and I don't have a clue as to who they are made by anymore, but I would suspect that nothing has changed. I've used a few of the new Cirrus servos for less demanding work and never had a problem. Best bet would be to contact Hobby People direct and ask who the manufacturer is.
I really enjoyed those radios. High quality that only sacrificed a few of the upper end features to save the modeling public of the time a lot of money.
Pat