Yes they did. They came in other colors for fire/tornado/other emergency sirens, but they were also single tone only. Dual tone CD sirens were painted CD yellow as stated by the Matching Funds act which granted money to fire depts. and towns needing or wanting a siren system. That is why you see mainly yellow XT22s, SD10s, Allertors, T-bolt 1003s, you name it... Our Model 5 is from this era and was silver or gray in color and was repainted to its original looks a couple of years ago.
Correct me if I'm wrong anybody.