Autotransformers

autotransformers — pre-owned

7,197listings

Browse 7,197 autotransformers — pre-owned on eBay — listings updated every few minutes. All items are pre-owned and sold by eBay sellers directly.

STACO Energy Variable Autotransformer Type 3PN1010 Input 120V Output 0-120/140V
-31%
UsedBuy It Now

STACO Energy Variable Autotransformer Type 3PN1010 Input 120V Output 0-120/140V

All start at only 99 cents!

$69.41$100.61-31%

You save $31.20

+$9.91Woodbury, US
vintage*tool*resource
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98.9%Excellent· 19.9k
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Staco Energy Products Co. 60M1520 Variable Transformer 240V 9.5A 2.66kVA 50/60HZ
UsedBuy It NowBest Offer

Staco Energy Products Co. 60M1520 Variable Transformer 240V 9.5A 2.66kVA 50/60HZ

: Input 240V | Output 0–240V, 9.5A Max, 2.28 kVA. : Input 240V | Output 0–280V, 9.5A Max,2.66 kVA. : Single Phase, Single Coil. The Oriental Motor (Vexta) SMK216A-GN is a 60 mm (2.36 in.). low-speed, single-phase synchronous motor.

$299.99
See listingRockford, US
internationalpartssupplyinc
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100.0%Excellent· 4.0k
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Superior Electric Co Powerstat Variable Autotransformer Untested
UsedBuy It Now

Superior Electric Co Powerstat Variable Autotransformer Untested

We will do our best to resolve the issue quickly!

$55.00
See listingHemet, US
jstkknt6669
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99.3%Excellent· 4.0k
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Staco 3PN1010 Variable Autotransformer Variac 0-120/140V 10A 1.4kVA Tested Works
UsedBuy It NowBest Offer

Staco 3PN1010 Variable Autotransformer Variac 0-120/140V 10A 1.4kVA Tested Works

The Staco 3PN1010 Variable Autotransformer is a versatile electrical device that allows for step-up and step-down conversion of AC power. With a power rating of 1.4 kVA and a primary current rating of 10 A, this autotransformer can handle a wide range of voltage levels from 0-140V. Perfect for businesses and industrial applications, this green-colored unit features a Type B plug and corded/plug-in termination style. Made by the trusted brand STACO in the United States, this autotransformer is reliable and efficient for various electrical needs. This unit is tested and works.

$137.95
See listingBenton, US
rt-plant
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100.0%Excellent· 15
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 Industrial Heater Control Panel Bench Variable AC Power Supply Variac GE
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UsedBuy It NowBest Offer

Industrial Heater Control Panel Bench Variable AC Power Supply Variac GE

l Heater Control Panel

$245.00
+$35.00New Orleans, US
dealgrade220TOP
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99.7%Excellent· 800
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Vintage Lafayette Variable Voltage Control 500W 0-140V AC TRANSFORMER
UsedBuy It NowBest Offer

Vintage Lafayette Variable Voltage Control 500W 0-140V AC TRANSFORMER

$69.96
See listingWalnut Bottom, US
greensemporium13
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100.0%Excellent· 3.1k
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VINTAGE 1960s 1970s VARIAC W5HM AUTOTRANSFORMER NOS NIB
UsedBuy It NowBest Offer

VINTAGE 1960s 1970s VARIAC W5HM AUTOTRANSFORMER NOS NIB

Up for bid is a vintage Variac W5HM AUTOTRANSFORMER it is New old stock, new in box, just opened yesterday! It is in excellent condition never used.

$695.00
Free ShippingPahrump, US
attic-fanatics-thrift-store
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100.0%Excellent· 667
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GENERAL RADIO USA W5MT3 AUTOTRANSFORMER VARIAC IN 120Vac Out 0-140Vac 5A TESTED
UsedBuy It Now

GENERAL RADIO USA W5MT3 AUTOTRANSFORMER VARIAC IN 120Vac Out 0-140Vac 5A TESTED

Great working condition, very accurate does have light scuffing highlighted in the photos any questions or additional photos needed please let me know

$99.95
See listingKokomo, US
lillianandmaddie
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99.8%Excellent· 948
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Vintage General Radio Company VARIAC Type W5M  Autotransformer Tested Works 5amp
UsedBuy It NowBest Offer

Vintage General Radio Company VARIAC Type W5M Autotransformer Tested Works 5amp

It is a model Type W5M. It is One side Common line to load. line 120v 50-60 cycles. Load 0-140v. It is working and I have tested it with a lamp. Any information will be appreciated.

$89.99
See listingElgin, US
t-burne
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100.0%Excellent· 12.4k
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Powerstat variac 3pn116c variable auto transformer works check out video
UsedBuy It NowBest Offer

Powerstat variac 3pn116c variable auto transformer works check out video

It is a model 3pn116c. Each item is visually inspected. Because we are not the original owners, we do not know the usage history, age, dates, or compatibility. It is best to check with your local dealer for compatibility issues.

$99.99
See listingCanoga Park, US
jameslabrecque
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99.9%Excellent· 18.3k
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POWERSTAT Superior Electric VARIABLE AUTOTRANSFORMER 136B (120VAC-0-140)
UsedBuy It NowBest Offer

POWERSTAT Superior Electric VARIABLE AUTOTRANSFORMER 136B (120VAC-0-140)

136B 120V-0-140. Pre-Owned Great Condition!

$229.99
+$14.95Wellington, US
got2-be-in
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99.9%Excellent· 12.6k
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Powerstat 3PN116B Superior Electric Variable Autotransformer  140V AC-Works-Read
UsedBuy It NowBest Offer

Powerstat 3PN116B Superior Electric Variable Autotransformer 140V AC-Works-Read

**Cord is frayed in in place, sealed with electrical tape. Tested and works so doesn’t affect function. The Powerstat 3PN116B is a high-quality electric variable autotransformer manufactured by Superior. This unit is designed for surface mounting with a primary voltage rating of 120V AC and a secondary current rating of 10A. It offers a turns ratio of 1:40, making it ideal for testing various AC voltage levels from 0 to 140V. With a minimum operating frequency of 50 Hz and a maximum of 60 Hz, this autotransformer provides reliable and efficient performance for a wide range of industrial and electrical testing applications.

$89.99
+$7.00Owens Cross Roads, US
vtg*collectibles
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99.8%Excellent· 919
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Tenma Test Equipment 72-1095 Isolation Transformer with Variac 0-140 VAC 3 Amp
UsedBuy It NowBest Offer

Tenma Test Equipment 72-1095 Isolation Transformer with Variac 0-140 VAC 3 Amp

Manufacturer Tenma. The condition of this item is used and may have dents, scuffs and scratches from normal use. We will always try and find a solution if you have an issue with your order. Part Number N/A.

$349.99
+$40.00Salisbury, US
sparksman11
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99.7%Excellent· 29.7k
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GE Buck Boost Transformer 9T51B0110 1.00kVA 120/240V to 12/24V Type QB CU
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UsedBuy It Now

GE Buck Boost Transformer 9T51B0110 1.00kVA 120/240V to 12/24V Type QB CU

GE Industrial Systems Buck Boost Transformer model 9T51B0110 provides reliable voltage adjustment in a compact, durable enclosure. This Type QB autotransformer is rated for 1.00kVA at 60Hz and features a copper winding construction. Designed for versatility, it supports primary voltages of 120/240V and secondary voltages of 12/24V. The unit comes equipped with heavy-duty Coleman Cable Seoprene power cords and locking NEMA-style plugs for secure connections. Housed in a NEMA 3R rainproof enclosure, it is suitable for various industrial and commercial applications requiring precise voltage correction. Measurements: • Weight: 25lb

$129.99$199.99-35%

You save $70.00

+$9.99Newnan, US
thetreasurechestthriftstorellcTOP
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100.0%Excellent· 2.9k
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Staco Energy 3PN1510 Variable Autotransformer Variac  120V 0-120/140V 15A 2.1KVA
UsedBuy It Now

Staco Energy 3PN1510 Variable Autotransformer Variac 120V 0-120/140V 15A 2.1KVA

$115.00
+$24.75Calais, US
justscrapingby
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100.0%Excellent· 2.5k
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Superior Electric 3PN116B POWERSTAT Variable Autotransformer 0-140V 10A 1400watt
UsedBuy It NowBest Offer

Superior Electric 3PN116B POWERSTAT Variable Autotransformer 0-140V 10A 1400watt

Load tested and works fine. The series of pictures show the test lamp bulb at 20v intervals from 40 to 140V.

$145.00
See listingThe Villages, US
baldeagle542
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100.0%Excellent· 399
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Pickering XSV-3000 and Micro V-15 Lot with extra parts
UsedBuy It NowBest Offer

Pickering XSV-3000 and Micro V-15 Lot with extra parts

Included in this lot.

$199.88
+$7.00Scranton, US
boombap99
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99.2%Excellent· 124
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Superior Electric 136B Powerstat Variable Variac Autotransformer Transformer 120
UsedBuy It Now

Superior Electric 136B Powerstat Variable Variac Autotransformer Transformer 120

$199.00
+$12.99Riverview, US
clamebake99
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99.9%Excellent· 27.7k
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Heathkit IP-5220 Variable Isolated AC Power Supply w/ Manual - Powers On, As Is
For parts or not workingBuy It Now

Heathkit IP-5220 Variable Isolated AC Power Supply w/ Manual - Powers On, As Is

Heathkit variable isolated ac power supply model IP-5220 with the manual! The unit does power on, but it has not been tested any further. The unit is being sold as is with no returns.

$299.99
See listingAydlett, US
derbyboystoys
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100.0%Excellent· 1.9k
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Staco Variable Transformer, 1.75A, 0-132V, Plug In Bench Type, Laboratory, L221
UsedBuy It NowBest Offer

Staco Variable Transformer, 1.75A, 0-132V, Plug In Bench Type, Laboratory, L221

The small portable size makes this series ideal for virtually every laboratory application. Plug-in, bench-type. Sealed steel case protects against chemical spills. With 1.8m three-conductor grounded line cord, fused NEMA rated receptacle, illuminated on/off rocker switch.

$150.00
+$15.00US
sci_bay
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100.0%Excellent· 841
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Vintage Technipower VARIAC W5MT3 AUTOTRANSFORMER 5 AMP 0-140 V Untested
UsedBuy It Now

Vintage Technipower VARIAC W5MT3 AUTOTRANSFORMER 5 AMP 0-140 V Untested

THE MORE YOU BUY THE MORE YOU WILL SAVE. We love what we do and know what we are doing.

$99.99
+$14.00Rochester, US
the.teacher.reseller.guy.llc
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99.7%Excellent· 12.3k
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Superior Electric Powerstat 10B Variable Transformer w/ Knob, Plate
UsedBuy It Now

Superior Electric Powerstat 10B Variable Transformer w/ Knob, Plate

Used condition with some dents, see pictures, comes with what is shown.

$69.99
Free ShippingAlbuquerque, US
audiounchained
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99.9%Excellent· 7.2k
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PV-442 Line Adjuster Variable Transformer, variable
UsedBuy It Now

PV-442 Line Adjuster Variable Transformer, variable

Fresh from an estate.

$39.99
+$20.00Springfield, US
01a*
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100.0%Excellent· 3.5k
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General Radio Variac W5MT3 Autotransformer 0-140V 5A Variable AC Power
UsedBuy It NowBest Offer

General Radio Variac W5MT3 Autotransformer 0-140V 5A Variable AC Power

General Radio Variac W5MT3 Autotransformer 0-140V 5A Variable AC Power

$85.00
See listingLombard, US
fredenchor
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100.0%Excellent· 455
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General Radio  - Variac Type V-2   115V Variable Autotransformer USA
UsedBuy It Now

General Radio - Variac Type V-2 115V Variable Autotransformer USA

$36.00
+$12.00Milpitas, US
calibarter
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100.0%Excellent· 1.7k
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Vintage 3 Variac/Powerstat AC Power Supply w/ Triplett Meters 0-5A 0-120V READ
For parts or not workingBuy It NowBest Offer

Vintage 3 Variac/Powerstat AC Power Supply w/ Triplett Meters 0-5A 0-120V READ

The housing holding the fuse in the middle is broken, but the fuse still works. The wires in the back of the unit have old, degrading insulation, and should either be replaced or coated in new insulation for safety.

$80.00
See listingTustin, US
dawdledeer
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100.0%Excellent· 40
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Superior Powerstat Variable Transformer Can’t Read MPN Looks Like A 116
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UsedBuy It NowBest Offer

Superior Powerstat Variable Transformer Can’t Read MPN Looks Like A 116

It’s late enough model it takes a 3 prong appliance. Sold as used condition.

$54.00
Free ShippingBoonville, US
klocksalesTOP
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99.8%Excellent· 1.8k
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Autotransformers 220 V AC Primary Voltage / AC Converter E.P.D. 220 to 110 V
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UsedBuy It Now

Autotransformers 220 V AC Primary Voltage / AC Converter E.P.D. 220 to 110 V

Pre-Owned / Used (An item that has been used previously. ).

$34.98
See listingSan Antonio, US
plumcreekemporiumTOP
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99.8%Excellent· 3.4k
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YAMABISHI ELECTRIC VOLT SLIDER/VARIABLE TRANSFORMER/VARIAC! TYPE S-260-3 260V/3A
UsedBuy It Now

YAMABISHI ELECTRIC VOLT SLIDER/VARIABLE TRANSFORMER/VARIAC! TYPE S-260-3 260V/3A

TYPE S-260-3 260V/3A. USED YAMABISHI ELECTRIC CO. VOLT SLIDER! MAXIMUM OUTPUT CURRENT 3A. ONE OF THE THREE MOUNTING LEGS IS MISSING, SEE PICTURES. TYPE S-260-3. MADE IN JAPAN.

$149.99
See listingCharlotte, US
litzker
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100.0%Excellent· 16.5k
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Staco Energy Products 3PN1510, Variable Autotransformer, 120V, 15A.
UsedBuy It NowBest Offer

Staco Energy Products 3PN1510, Variable Autotransformer, 120V, 15A.

This unit came to us exactly as pictured. Works fine I was able to power another unit wit. See pictures for additional details inventory location A8DC.

$300.00
See listingUnion City, US
heavenlyvines3
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99.4%Excellent· 158
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Superior Electric Powerstat Type 2PF10 Variable Autotransformer (Variac)
UsedBuy It NowBest Offer

Superior Electric Powerstat Type 2PF10 Variable Autotransformer (Variac)

This is a Superior Electric Powerstat Type 2PF10 Variable Autotransformer (Variac), not a train accessory. It’s a laboratory/electronics device used to vary AC voltage from approximately 0–132 volts AC at 1 amp.

$50.00
See listingSeal Beach, US
3k_trains
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100.0%Excellent· 131
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Matsunaga SD-1310 Variac 0-130V Slide Regulator, Fully Restored. See Video!
UsedBuy It NowBest Offer

Matsunaga SD-1310 Variac 0-130V Slide Regulator, Fully Restored. See Video!

Matsunaga SD-1310 Variac - referred to by the manufacturer as a 'Slide Regulator'. Manufactured in Japan, the SD-1310 is rated for 1-phase, 100V input with an output of 1-phase, 0~130V, frequency of 50/60Hz, rated for 8-hours.

$149.00
See listingBoxford, US
iclobster
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100.0%Excellent· 360
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Staco Variable Transformer Type 2520, Single coil, 240VAC input, 0-280VAC output
UsedBuy It NowBest Offer

Staco Variable Transformer Type 2520, Single coil, 240VAC input, 0-280VAC output

Adjust-A-Volt, Standard Electrical Products Company. Made in Dayton Ohio. Comes mounted in electrical box 12"x10"x6". 34lbs+ Please ask any questions before purchasing.

$478.91
Free ShippingMogadore, US
dcramohio
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100.0%Excellent· 35
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USED Victron Energy Autotransformer 100A 120/240V - ITR000100101
UsedBuy It Now

USED Victron Energy Autotransformer 100A 120/240V - ITR000100101

From Victron's specs Input circuit breaker 100A, two pole. Maximum 240 V feed through current 100A.

$360.00
See listingCheyenne, US
stotzd01
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100.0%Excellent· 186
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Powerstat Variable Transformer Type L116B
UsedBuy It Now

Powerstat Variable Transformer Type L116B

Type L116B. Unit has been tested to function as intended.

$99.99
See listingDenver, US
seaashle0
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99.8%Excellent· 2.4k
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Superior Electric co. Powerstat variable auto transformer.
LIVE BID
UsedAuction

Superior Electric co. Powerstat variable auto transformer.

This auction is for a Superior Electric Powerstat Variable Autotransformer, type 116. Not tested. Comes with an instruction manual. Was purchased in 2007 and never taken out of the box. This could very well be a new item. It goes from 0-140. Shipping for this will be 12-13 lbs. Thank you for taking the time to view this auction.

$9.99
0 bids4d 17h left
See listingCrystal Lake, US
bunnygrama
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100.0%Excellent· 1.4k
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Technipower Variac W10MT3A Works
UsedBuy It Now

Technipower Variac W10MT3A Works

This is in very nice condition. All the photos were taken in natural lighting. If you have any questions or need a different photo please ask before you purchase so the sale can be smooth.

$200.00
Free ShippingAuburn, US
aesag2005
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100.0%Excellent· 650
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Vtg Antique Tube Radio GR Variac 5 Amp 115 V Type V5 0-130 V General radio BinF4
UsedBuy It NowBest Offer

Vtg Antique Tube Radio GR Variac 5 Amp 115 V Type V5 0-130 V General radio BinF4

Vtg Antique Tube Radio GR Variac 5 Amp 115 V Type V5 0-130 V General radio BinF4. Condition is Used. Shipped with USPS Ground Advantage.

$75.00
See listingLewes, US
beachksm
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100.0%Excellent· 7.2k
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Matheson Scientific Type 3PN 500B Adjust-A-Volt Variac Variable Autotransformer
UsedBuy It NowBest Offer

Matheson Scientific Type 3PN 500B Adjust-A-Volt Variac Variable Autotransformer

$99.99
+$16.00Akron, US
aasieltd
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99.5%Excellent· 61.2k
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Variable Voltage Regulator Adjustable Voltage 110/220V 0-130V/300V 3KVA
-16%
UsedBuy It NowBest Offer

Variable Voltage Regulator Adjustable Voltage 110/220V 0-130V/300V 3KVA

We might require you to send us photo/s of the item received and also your original item so we can compare and conduct necessary actions. Received Wrong Item/Not as Described.

$209.99$249.99-16%

You save $40.00

+$30.00Anaheim, US
teme_mahe
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100.0%Excellent· 12.8k
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