Radio Shack 120-2182 User Manual page 23

(FM Modulator and
Ground Isolator): .... 1 x 4-1/8 x 3-9/16 Inches (26 x 105 x 90 mm)
Specifications are typical; individual units might vary. Specifications
are subject to change and improvement without notice.
(BR EB 12/1/99)
LN-03/04