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Transformer core

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Split core 200a 500a - 2,

Split core 200a 500a - 2,

$30.99
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New 35w core transformer for - 35w,

New 35w core transformer for - 35w,

$72.95
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4sets ee42 transformer - 4sets,

4sets ee42 transformer - 4sets,

$39.99
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Plusrite bamh400 cwa 400w - bamh400-cwa/v5,

Plusrite bamh400 cwa 400w - bamh400-cwa/v5,

$47.49
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3500v core and coil neon - core,

3500v core and coil neon - core,

$39.95
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Transformers studio series - transformers,

Transformers studio series - transformers,

$10.00
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5000v core and - 5000v, beer

5000v core and - 5000v, beer

$47.95
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90x50mm 1500amp current - 1500amp,

90x50mm 1500amp current - 1500amp,

$30.00
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Transformers the movie - transformers,

Transformers the movie - transformers,

$30.99
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Unbranded laminated core power - unbranded,

Unbranded laminated core power - unbranded,

$39.99
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Split core current - split,

Split core current - split,

$26.55
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Power core combiners - core,

Power core combiners - core,

$19.88
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100a sct013 non - sct013, ac

100a sct013 non - sct013, ac

$12.68
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4sets ee42 transformer core - 4sets,

4sets ee42 transformer core - 4sets,

$39.99
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Bestrans 2000w step - step, up

Bestrans 2000w step - step, up

$72.90
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Marslg 75w multi - marslg, multi-tap

Marslg 75w multi - marslg, multi-tap

$161.80
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1pc 115v 230v 30w - 1pc,

1pc 115v 230v 30w - 1pc,

$49.19
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Transformers legacy evolution - transformers,

Transformers legacy evolution - transformers,

$14.99
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Shelly 50a split - shelly,

Shelly 50a split - shelly,

$18.95
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Hasbro transformers the movie - transformers,

Hasbro transformers the movie - transformers,

$44.99
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Enphase split core current - enphase,

Enphase split core current - enphase,

$15.96
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Transformers the movie studio - the,

Transformers the movie studio - the,

$10.00
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New yuanxing ctsa016 - new,

New yuanxing ctsa016 - new,

$39.99
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Lot new cr magnetics - new,

Lot new cr magnetics - new,

$22.00
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Transformers power core - transformers,

Transformers power core - transformers,

$23.99
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New yuanxing ctsa035 - new,

New yuanxing ctsa035 - new,

$39.99
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Transformers kingdom wfc - wfc, core

Transformers kingdom wfc - wfc, core

$54.99
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Bakugan cubbo - bakugan,

Bakugan cubbo - bakugan,

$10.09
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R80 100w core - r,

R80 100w core - r,

$147.09
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Hammond control transformer

Hammond control transformer

$79.99
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Ultra large power transformer - ultra,

Ultra large power transformer - ultra,

$79.99
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Core components le80050 - core,

Core components le80050 - core,

$90.00
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Transformers generations - transformers,

Transformers generations - transformers,

$19.99
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Bumblebee laserbeak core - laserbeak,

Bumblebee laserbeak core - laserbeak,

$27.99
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Transformers power core - power,

Transformers power core - power,

$99.99
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Transformer for preamp 115v - for,

Transformer for preamp 115v - for,

$38.68
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New flex core fcl600 4 - flex,

New flex core fcl600 4 - flex,

$119.99
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Fansproject warbot revolver - fansproject,

Fansproject warbot revolver - fansproject,

$89.99
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Flex core 500 4 current - flex-core, fc-500/1-4

Flex core 500 4 current - flex-core, fc-500/1-4

$114.75
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New general electric 9t58k0087 - electric,

New general electric 9t58k0087 - electric,

$125.00
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Null ray gun weapon - null,

Null ray gun weapon - null,

$7.58
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Control transformer square - transformer, d

Control transformer square - transformer, d

$65.00
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Triad magnetics 254x - triad,

Triad magnetics 254x - triad,

$25.99
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Schneider electric powerlogic - schneider,

Schneider electric powerlogic - schneider,

$85.00
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Eg4 flexboss current - eg4,

Eg4 flexboss current - eg4,

$30.00
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Transformers power core - transformers,

Transformers power core - transformers,

$39.99
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Transformers power core - power,

Transformers power core - power,

$24.99
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1pair uf86a ultra - uf86a,

1pair uf86a ultra - uf86a,

$29.79
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General electric 9t58k0049 - electric, ge

General electric 9t58k0049 - electric, ge

$122.13
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New yuanxing ctsa024 - new,

New yuanxing ctsa024 - new,

$39.99
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50w core transformer - 50w, tube

50w core transformer - 50w, tube

$34.99
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Transformers combiner wars - transformers,

Transformers combiner wars - transformers,

$70.00
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Japan exclusive transformers - japan,

Japan exclusive transformers - japan,

$45.00
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Hasbro transformers legacy - hasbro,

Hasbro transformers legacy - hasbro,

$10.79
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Transformers legacy core swoop - legacy,

Transformers legacy core swoop - legacy,

$19.27
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Electronics transformer core - electronics,

Electronics transformer core - electronics,

$26.02
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Transformers legacy evolution - legacy,

Transformers legacy evolution - legacy,

$110.00
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115v 230v 50w - r-core, shielded

115v 230v 50w - r-core, shielded

$55.37
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Sets ei33 6pin - 6+6pin, power

Sets ei33 6pin - 6+6pin, power

$21.03
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Transformers studio series - transformers, 86

Transformers studio series - transformers, 86

$34.99
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Transformer audiophile 30w - transformer,

Transformer audiophile 30w - transformer,

$25.24
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Hasbro transformers combiner - hasbro,

Hasbro transformers combiner - hasbro,

$39.99
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Hasbro transformers the - transformers, movie

Hasbro transformers the - transformers, movie

$55.95
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Transformers studio core - transformers, '86

Transformers studio core - transformers, '86

$35.19
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Dna design upgrade - upgrade, kit

Dna design upgrade - upgrade, kit

$55.99
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Shelly 50a split - 50a, split-core

Shelly 50a split - 50a, split-core

$19.99
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Transformers power core - transformers,

Transformers power core - transformers,

$14.99
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Hasbro transformers steeljaw - hasbro,

Hasbro transformers steeljaw - hasbro,

$9.99
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Random assortment transformers - random,

Random assortment transformers - random,

$44.93
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Venstar mlg sct - venstar, 2000-600

Venstar mlg sct - venstar, 2000-600

$27.99
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Transformers power core - transformers,

Transformers power core - transformers,

$19.99
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Hasbro transformer studio - hasbro,

Hasbro transformer studio - hasbro,

$44.99
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Transformers the movie - transformers,

Transformers the movie - transformers,

$20.99
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Transformers legacy united - transformers,

Transformers legacy united - transformers,

$34.99
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Transformers armored truck - armored,

Transformers armored truck - armored,

$13.97
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Transformers legacy core slug - legacy,

Transformers legacy core slug - legacy,

$14.07
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Transformers studio series - transformers,

Transformers studio series - transformers,

$19.99
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New transformer cores - transformer,

New transformer cores - transformer,

$35.00
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Transformers legacy united - legacy,

Transformers legacy united - legacy,

$64.99
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Lectroetch power - lectroetch,

Lectroetch power - lectroetch,

$38.98
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Hasbro transformers power - hasbro, core

Hasbro transformers power - hasbro, core

$24.99
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1pcs split core current - 1pcs,

1pcs split core current - 1pcs,

$16.59
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Transformers war for cybertron - for,

Transformers war for cybertron - for,

$11.15
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Transformers legacy evolution - transformers,

Transformers legacy evolution - transformers,

$20.99
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Magnetic core selection for - magnetic,

Magnetic core selection for - magnetic,

$65.00
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Transformers kingdom core - kingdom,

Transformers kingdom core - kingdom,

$11.99
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Flex core current transformer - flex,

Flex core current transformer - flex,

$39.95
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Transformers legacy united - legacy,

Transformers legacy united - legacy,

$18.00
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Transformers sdcc optimus - sdcc,

Transformers sdcc optimus - sdcc,

$59.99
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Hasbro transformers legacy - hasbro,

Hasbro transformers legacy - hasbro,

$16.49
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New flex core fcl 4000 - flex-core,

New flex core fcl 4000 - flex-core,

$449.95
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Transformers power core - power,

Transformers power core - power,

$24.99
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Vintage triad - pc),

Vintage triad - pc),

$9.39
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Schneider electric powerlogic - schneider,

Schneider electric powerlogic - schneider,

$70.00
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Talema 70041k transformer 10va - talema,

Talema 70041k transformer 10va - talema,

$39.99
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Flex core 19rl - 19rl-252, current

Flex core 19rl - 19rl-252, current

$85.00
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📊96 listings · from $7.58 · avg $47.95

Browse 96 transformer core listings currently in our index. Prices range from $7.58 to $449.95, with an average of $47.95. Whether you are hunting for a bargain or looking for a top-spec model, the selection below covers all price points — new, used and refurbished. More about transformer core →

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Everything you need to know about transformer core

Whether you are looking for a brand-new or second-hand transformer core, eBay offers one of the largest selections available online. With 96 active listings at the time of this page's last update, you have plenty of choice across different conditions, sellers and price points. The cheapest option currently starts at $7.58, while premium listings can reach $449.95 — giving you a wide budget spread to work with. The average price of $47.95 can serve as a useful benchmark: listings below this tend to be used or auction-style, while those above often include extra accessories, warranties, or are sold by professional sellers with high feedback scores. Always check the seller's feedback rating and return policy before committing to a purchase. If you need the item quickly, filter by "Buy It Now" to avoid the uncertainty of auctions. For used items, look closely at the condition description and photos — terms like "good", "very good" and "like new" can mean very different things depending on the seller.

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