References:

Note: Object is Объект in Russian if you want to Google the net for more designs. Be sure to have the latest internet explorer, a decent antivirus program, firewall, and god knows what else; since the Russian corner of the internet is full of viruses, et al.

Object 740 (PT-76)

Design Period: 1949-1950
Adopted: 6 August 1951 by USSR Council Decree 3686-1447
Production: 1951-1967 (or 1962)

Length: 7,6250mm
Width: 3,180mm
Height: 2,195mm
Combat Weight: 14,000 kg

Gun: 76mm Gun D-56T (40 rounds)

Object 740B (PT-76B)

Production: 1958-1967

Length: 7,6250mm
Width: 3,140mm
Height: 2,551mm
Ground Clearance: 370mm
Combat Weight: 14,400 kg

Gun: 76mm Gun D-56TS (40 rounds)

Engine: 240 hp at 1,800 RPM.