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The 5 cm Pak 38 (L/60) (5 cm Panzerabwehrkanone 38 (L/60)) was a German anti-tank gun of 50 mm calibre. It was developed in 1938 by Rheinmetall-Borsig AG as a successor to the 3.7 cm Pak 36, and was in turn followed by the 7.5 cm Pak 40. The unique curved gun-shield design differed from most WWII anti-tank guns which had either one flat or two ...
The Pak 41 barrel was fitted with a horizontal sliding-block breech mechanism resembling that of the 7.5 cm Pak 40, and the semi-automatic gear was a simplified version of that used on the Pak 43. The two-wheel split-trail carriage was from the 10.5 cm leFH 18 field howitzer, with the wheels from the 15 cm s FH howitzer.
The 7.5 cm Pak 40 (7,5 cm Panzerabwehrkanone 40) was a German 75 millimetre anti-tank gun of the Second World War. The gun was developed in 1939–1941 and entered service in 1942. With 23,303 examples produced, the Pak 40 formed the backbone of German anti-tank guns for the later part of World War II, mostly in towed form, but also on a number ...
TO-252, also known as DPAK [1] or Decawatt Package, is a semiconductor package developed by Motorola [2] for surface mounting on circuit boards. [3] It represents a surface-mount [4] variant of TO-251 package, and smaller variant of the D2PAK package. It is often used for high-power MOSFETs and voltage regulators.
Design of a horse-drawn, 3.7 cm anti-tank gun (designated 3.7 cm Pak L/45) by Rheinmetall commenced in 1924 and the first guns were issued in 1928. [5] By the early 1930s, it was apparent that horse-drawn artillery was obsolescent, and the gun was modified for motorized transport by substituting magnesium-alloy wheels and pneumatic tires for the original spoked wooden wheels, allowing it to be ...
A Pak's weight is within the range of 229 kg (505 lb) to 10,160 kg (22,400 lb). The smallest caliber was 28 mm (1.1 in) and the largest was 128 mm (5.0 in). Over the six-year course of World War II the armor of the tanks steadily improved, so the size of the projectile had to increase.
A flatpack integrated circuit on a circuit board, among TO-5 packages. The original flatpack was invented by Y. Tao in 1962 while he was working for Texas Instruments to improve heat dissipation. The dual in-line package was invented two years later. The first devices measured 1/4 inch by 1/8 inch (3.2 mm by 6.4 mm) and had 10 leads. [1]
The Pak 39 was an electrically fired weapon fitted with a semi-automatic breech mechanism and a 48 caliber long barrel. The gun was able to destroy the most common allied tanks at up to 1,000 meters. It used the same 75 x 495R ammunition as the 7.5 cm KwK 40 of Panzer IV and 7.5 cm StuK 40 gun fitted on the Sturmgeschütz assault guns.