Here is an original transformer stored  indoors for 65 years . Working condition, unknown needs new power cord at least . 
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Transformer works fine. All voltages across the terminals check out.
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eBay
This vintage print ad from 1939 features a Lionel Model Railroad catalog page, perfect for collectors and enthusiasts alike. Made in the United States, this piece of advertising showcases the intricate details and craftsmanship of model trains from a bygone era. With a focus on the year it was produced and the country in which it was made, this ad highlights the historical significance and value of the item. Whether you're looking to add to your collection or searching for a unique gift for a hobbyist, this print ad is a must-have. Ideal for framing for train room or hobbyists. May have tears, creases, stains, fading, water marks, rust stains due to use and age.
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The Lionel Type 1033 Trainmaster 90 Watt Transformer is a black composite material transformer designed for O gauge model railroads. Manufactured by Lionel, this transformer is essential for power supply to your model train layout. Although missing the power plug, this transformer is a crucial component to keep your trains running smoothly.
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eBay
Lionel O Gauge 6-18309 Reading Fairbanks Morse Trainmaster Diesel #863 (NIB).
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Pathway Market has received a small collection of O gauge train set equipment. I am not familiar with trains but will describe all items with factual clarity. Lionel Multi Control Trainmaster transformer type RW 110 Watt 115 Volt 60 cycle. Alternating current. Plugged in and hums to life. Original box and Instructions for Operation included. Machine is clean and well taken care of by previous owner. No visible damage or issues. Please review all photos carefully for condition and consideration. Estate items. Condition is pre owned. Ships USPS Ground Advantage Mail.
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The Owner's Manual is not included.
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Here is a Lionel 6-129... This item has been graded per TCA standards C-7: Excellent based on visual appearance. One of the rubber base tips is missing from the trainmaster. This item shows scratches on the plastic shell and base of the controller and the trainmaster base and plastic shell. The overall appearance of this item may be improved with a gentle and thorough cleaning. The original box is not included. The instruction manual is not included. The power adapter is not included. Please check the photos for a detailed look at this item. Overall condition is Excellent. Availability: Ships within 1 Business Day! Trainz Product Id: 12589304.
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Here is a Lionel ZW O Gauge Vinta... This item has been graded per TCA standards C-6: Very Good. The lettering on the face of this transformer is partially faded. This transformer shows scratches and paint loss on the face, body, and base-plate. This transformer shows rust on the body and base-plate. The electrical cord is worn. The overall appearance of this item may be improved with a gentle and thorough cleaning. The instruction manual is not included. The original box is not included. Please check the photos for a detailed look at this item. Overall condition is Very Good. Availability: Ships within 1 Business Day! Trainz Product Id: 11424122.
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eBay
This is a Lionel 6-52321 O Gauge Train Collectors Association Southern Pacific TrainMaster Diesel Engine #3029 with Trainmaster. Features include TrainMa... This item has been graded per TCA standards C-8: Like New. This item appears to have been run sparingly, and displays overall signs of very light previous use. The original paint is in great shape, and the rest of the unit displays a like-new overall finish. The instruction manual is not included. The original box is included. Please check the photos for a detailed look at this item. Overall condition is Like New. Availability: Ships within 1 Business Day! Trainz Product Id: 11400859.
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The set is FACTORY SEALED and has NOT been opened.
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Unit successfully outputs power from all channels. Unit shows scuffs/scratches and wear on the exterior. With its tested functionality, you can trust that this product will keep your trains chugging along smoothly.
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Operate your trains, throw switches, and fire up accessories — all at the touch of a button. Your Classic Era Train Headquarters! Our goal is to have happy train folks worldwide. We also accept credit cards.
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