Developed by Earth Technology Super Sentai Powers

In Super Sentai, some teams were actually purely Earth technology made powers. These groups were:

Goranger- Technology was created and provided by the staff of EAGLE.

JAKQ- The technology was provided by the Interpol.

Battle Fever J- The technology was provided by Japan's national defense ministry.

Sun Vulcan- The technology was provided by Earth Protection Defense.

Goggle V- Their powers were provided by the Future Science Laboratory.

Dynaman- The technology was provided by the Yumeno Invention Center.

Changeman- The technology was provided by the Earth Force military although Ibuki was an alien.

Maskman- The technology was provided by Sanjoru Sugata himself.

Liveman- The technology was provided by Liveman's Dr. Hoshi.

Turboranger- The technology was provided by Dr. Dazai. There was nothing much mystical about their powers.

Hurricanger' The technology was provided by the Ninja School.

Fiveman- The technology was provided by their father Dr. Hoshikawa.

Jetman- Not sure about these guys. Only Jet Garuda and possibly the birdonic waves are not Earth source.

Ohranger- The technology was provided by the UAOH but they did harness some alien technology though.
Gogo V- The technology came from their father Dr. Mondo Tatsumi.

Timeranger- It came from a futuristic Earth, can't be sure if this series counts.

Boukenger- SGS is primarily Earth-based and it's mostly developed by Earth technology.