When did they go? When did they convert the F-102 to be able to carry a
gun pod
and Aim-9?

Or was it the F-106?

They carried the Falcon. Lost two F-102 to MiG-21 when they tried to play
with them. The F-106 never went, it was the mainstay of the ADC CONUS at the
time. As Ed Rasimus says often, the only two birds that didn't go where the
F-106 and the B-58. If the NVC started using bombers against the US or the
guys in the south, then more F-102 and/or F-104 would go.
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José Herculano