How many Alpha Robots were there ?

Originally Posted by timbojill

I started to watch power ranger from power rangers in space. I was watching some reruns lately in one ep they can him alhpa 5 and in one ep tey call him alpha 6 whats gonig on ?

From the start of Mighty Morphin' Power Rangers until the beginning of Power Rangers Turbo there was Alpha 5. From Turbo until Lost Galaxy there was Alpha 6 and in the "Forever Red" episode of Wild Force there was Alpha 7.