The EMD DDA40X is a 6,600 hp (4,943 kW) D-D locomotive, built by EMD from 1969 to 1971 exclusively for the Union Pacific Railroad. [1] . It is the most powerful diesel–electric locomotive model ever built on a single frame, having two 16-645E3A diesel prime movers. [2] .

Actually comprising two engines on one frame, they delivered 6,600 horsepower. Designed and built exclusively for Union Pacific Railroad, the units were named in honor of the railroad's centennial anniversary celebration in 1969. Accordingly, they were numbered in the 6900 series, from 6900 to 6946.

Dec 22, 2010 · I found a Micro Seiki DD-40 tt in excellent condition for $200. Is it worth it? It comes with orig ma-505 tonearm and all original. Thanks. yes! Absolutely. The arm alone has been bringing in $350-$550. This is for the stand-alone arm with a different base than the one on this table, but beside the base, the arm is the same.

Apr 1, 2012 · This beautiful Micro Seiki DD-40 turntable has the sought after MA-505 MK I tonearm. Micro Seiki is known for building top quality turntables and they always fetch high prices on the aftermarket. This table features: The solid base is made of Palisander-Rose finished press board and is fitted with large shock absorbing feet.

Nov 18, 2024 · Weighing in at 270 tons, the DDA40X was labeled as 'The World's Largest and Most powerful Diesel Electric Locomotive'." All of the Centennial units were equipped to operate at 90 miles per hour, using EMD's standard high speed 59:18 gear ratio.

Micro Seiki DD40 has been my main table for 5 years. It is true entry to highend, equipped with superb tonearm MA-505. Dynamically balanced, with VTA and VTF setting on the fly, this tonearm is capable of handling almost any cartridge, including most MC designs.

Micro Seiki DD-7 / DD-40 Direct-Drive Vintage Audiophile Turntable with MA-505 Tonearm. The DD-7 is a really lovely listening turntable from the 70's. This Micro Seiki was sold as the DD-7 within Japan, and in other countries as the DD-40. Micro Seiki originally made surgical instruments and miniature mechanisms.

Jul 5, 2006 · This review is on Athearn’s HO dual motor DD40.[:D] The Athearn DD40 is almost based on a real engine, but the real DD40s were cancelled. It looks close to a DD35A, so the Athearn shell can be modified pretty easily t…

In 1969 UP purchased the very largest and most powerful diesel ever built, the DDA40X, with 6600 HP provided by two diesel engines (prime movers) mounted on one frame,