Device or Vehicle

Jerry Feldon

Matt Allen

Robby Reed
HERO Dial
Nick Name
H-Dial
Creator or Inventor
Unknown

(Possibly Extraterrestrial)
Owner or Possessor

Andrea Allen

Captain Chaos Productions

Christopher King

Hero Cruz

Jerry Feldon

Joe / Shocking Suzi

Johnny "Mimic" Waddill

Lori Morning

Matt Allen

Nick Stevens

Robby Reed

Tony "The Shifter" Finch

Victoria Grant

 

Note: Dial 'H' for HERO appearance list compiled by John L. Censullo.
Function or Uses
Presumably to transform ordinary beings into superhuman beings.
Size
Varies with design.
Weight
Varies with design.
Special Properties
Dial of unknown origin with the ability to transform ordinary beings into random superhuman beings by spelling the letters HERO.

The dial has also been known to create evil alternates of a hero by dialing the word SPLIT.

Note: Users of the dial may eventually be unable to access its abilities after repeated use.  The same users may find they internalize certain superhuman abilities which may manifest during times of stress or through concentration and practice.

Note: The dial's language is altered to be understood by the person in possession.
Regularly Appearing

Adventure Comics

H-E-R-O

House of Mystery

Legion of Super-Heroes Vol. 3

Legionnaires

New Adventures of Superboy

Superboy & the Ravers
First Appearance
House of Mystery #156 (Jan. 1966)
Creator
Dave Wood & Jim Mooney
Origin
The first recorded account of the use of a HERO-dial was by Robby Reed, who discovered the apparently alien artifact in an unexplored cave.

Reed used the H-dial to battle evil under numerous superhuman identities.  His career came to an end when battling Shirkon of the Many Eyes, Reed attempted to slit into two heroes, but instead was transformed into a being of pure good called the Wizard and one of pure evil called the Master.

The Master dialed his H-dial into oblivion, and the Wizard created two additional dials with diminished powers.  These additional dials would be used by Christopher King and Victoria Grant who would eventually aid the Wizard in reconstituting with the Master into Robby Reed.

Others have possessed the HERO-Dial, or variants of the artifact and the device has been recorded to exist into the 31st century, where ordinary people can use it to dial "H" for Hero.