Chaparral Black Box...what is it?

[beavs2112]

I built something like that years ago for use with the first feedhorn I had, on the first big dish I had. Polorotor I , the first type, would work fine with it, just reversing the direction with a little toggle switch. (old PR-Is would just spin in a complete circle). The later PR2s wouldn't work with it though, as they required feedback from the receiver. Just by-passing the feedback wire still wouldn't make it work right , if I remember correctly.

Apologies for going OT but interestingly turbosat your topic (converting the polororotors) was brought up here recently http://www.satelliteguys.us/threads/310611-Wanted-Satellite-Retailer-Magazine

 

[phlatwound]

Anole sent me a couple more pics of Chaparral devices, one similar to mine but with the toggle.