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Mailing Address:

P.O. Box 2617

Waterloo, Iowa 50704

Shipping Address:

201 E. Mullan Avenue

Waterloo, Iowa 50704

Phone: (319) 234-6681

Fax: (319) 234-6684

Email Sales: click here

Office hours:

Monday-Friday,

8am-5pm, central time

Our featured vendor is Philmore

(LKG Industries).

Click on the picture for more details.

Our website is dedicated to

our dear friend, Barry Greenberg, 12/05/44 - 02/22/01

Laptop Transformers

Farnsworth Electronics, Inc. offers a wide variety of AC-AC and AC-DC Power Transformers

along with In-Line Transformers, Control Transformers, Step Down Transformers, Line Matching 

Transformers, Isolation Transformers, Adjustable Transformers and others.

 

We've got one of our featured vendors, Philmore Manufacturing's catalog available online.

Click here to see the catalog.

Click on the following links for much more information:
 

Laptop Cross Reference available, click here!

 

Laptop AC TO DC Switching Power Supply

ALL ITEMS ARE CENTER POSITIVE. ALL ITEMS UL APPROVED
Description Part # and Price
12 V, 3.3 amp - LAPTOP SWITCHING REGULATED

Item Number: # DC-12-4.1-2.1
 
15 V, 3.3 amp - LAPTOP SWITCHING REGULATED

Item Number: # DC-15-3.3-2.1
 
18 V, 3.3 amp - LAPTOP SWITCHING REGULATED

Item Number: # DC-18-3.3-2.1
 
19 V, 3.1 amp - LAPTOP SWITCHING REGULATED

Item Number: # DC-18-3.1-2.1
 
20 V, 3.0 amp - LAPTOP SWITCHING REGULATED

Item Number: # DC-20-3.0-2.1
 
24 V, 2.5 amp - LAPTOP SWITCHING REGULATED

Item Number: # DC-24-2.5-2.1
 
2.1 x 5.5 mm female plug

Item Number: # PLUG-2.1
 
2.5 x 5.5 mm female plug

Item Number: # PLUG-2.5
 
3.5 mm male plug

Item Number: # PLUG-3.5
 

ALL ITEMS ARE CENTER POSITIVE. ALL ITEMS UL APPROVED
 

LAPTOP POWER SUPPLY CROSS REFERENCE (more coming soon!):

Brand

Model #

Transformer #
APPLE POWERBOOK 190, 190CS, 3400, 5300 SERIES DC-24-2.5-3.5
COMPAQ ARMADA 1100, 1110, 1120, 1125,1130, 1135 DC-24-2.5-2.1
  ARMADA 3100, 4100, 4110, 4120, 4130, 4150, 4160 DC-19-3.1-2.1
  4200, 4210, 4220 SERIES, CONCERTO 4/25, 4/33 DC-19-3.1-2.1
  CONTURA 3/20, 3/25, 325C, 4/25, 4/25C, 4/25CX DC-19-3.1-2.1
  CONTURA 400, 410, 420, 430, CONTURO AERO 4/25, 4/33 SERIES DC-18-3.3-2.1
  LTE 5000, 5100, 5150, 5200, 5250, 5280, 2300, 5380, 5400 SERIES DC-18-3.3-2.1
  PRESARIO SERIES DC-19-2.1-2.5
DELL INSPIRON 3000, 3200 SERIES DC-19-3.1-2.5
  LATITUDE XP SERIES DC-18-3.3-C
  LATITUDE XPI SERIES DC-18-3.3-3
EPSON ACTIONNOTE 486SLC/25, 486SLC/33, 4SLC/25, 4LSC/33, 4SLC2/50, 500C DC-18-3.3-2.1
  ACTIONNOTE 800, 866C, 880C, 880CX, 890, 890C, 895C, 910C DC-19-3.0-2.1
FUJITSU LIFEBOOK 400, 420, 435, 520, 530, 531, 535, 555, 565, 585, 635, 355, 656, MILAN, MONTE CARLO, MONTEGO SERIES DC-18-3.3-3
GATEWAY COLORBOOK, COLORBOOK 2 SERIES, SOLO 2100, 2200 SERIES, SOLO 2300, 2500, 2550, 9100, 9150 SERIES DC-19-3.3-2.1
HEWLETT PACKARD OMNIBOOK 300, 425, 430, 530, 600, 600C, 600CT, 800, 800CS, 800CT, 2000, 2000CS, 2000CT, 2100, 5000, 5000CT, 5000CTS, 5300, 5500, 5500CS, 5500CT, 5500CTS, 5700CT, 5700CTX SERIES DC-12-4.1-2.1
  OMNIBOOK 2100, 2103, 2105, 3000, 3100, 3101 DC-19-3.1-2.1
HITACHI E-100D, E-133D, E-133T, M-133T, MX-150T, MX-166T DC-19-3.1-2.1
  VISIONBOOKELITE, ELITE 8000, PLUS 5000, 5200, 5260, 5280, 5290, PRO 6000, 6300, 7000, 7300, 7500, 7600, 7700 SERIES, VISIONBOOK PLUS 4000, 4100, 4140, 4150, 4300, 4350, 4360 SERIES DC-19-3.1-2.1
IBM THINKPAD 301, 355, 355C, 355CS, 360, 360C, 360CE DC-20-3.0-4
  360CS, 360CSE, 360P, 360PE, 370, 380CE, 380CS, 380CSE, 750, 750C, 750P, 755, 755C, 755CD, 755 CDV, 755CE, 755CS, 755CSE, 755CV, 755CX, 760, 760C, 760D, 760E, 760ED, 760EL, 760ELD,
760L, 760LD, 760X, 760XD, 760XL, 765D, 765L SERIES, THINKPAD 310, 310ED, 315, 365, 365C, 365CD, 1400, 1410, 1411, 1412, 1436, 1450, 1451, 1452, 1472, 1500, 1512, 1552 SERIES		 DC-19-3.1-2.1
  365CS, 365CSE, 365ED, 365X, 365XD, 380, 380D, 380E, 380ED, 380XD, 380Z, 560, 560E, 560X, 560Z, 701C, 701CS, 701CX SERIES
390, 390E, 570, 600, 600D, 600E, 770, 770D, 770E, 770ED, 770U, 770X, 770Z, A, A20, A21, 1420, 1421, 1422, 1441, 1442, 1460, 1480, 1482, 1483, 1492, 1540, 1541, 1542, 1560, 1562, 1592, 1720, 1721, T, T20, T21 SERIES		 DC-18-3.3-2.1
NEC ULTRALITE VERSA 20, 25, 33, 40E, 50E, E, M, P Series DC-12-4.1-2.1
  S SERIES DC-19-3.1-3
  550, 550D DC-20-2.9-2.1
  2000, 2050 DC-19-3.1-3
  2205, 2250, 5000, 5080 SERIES DC-19-3.1-1.1
  2400, 2405, 2430, 2435, 2500, 2530 SERIES DC-19-3.1-2.1
  2700, 2730, 2760, 2780 SERIES DC-19-3.1-3
  4000, 4050, 4080, 4200, 4230 SERIES DC-15-3.3-4
  6000, 6010, 6030, 6050, 6060, 6200, 6220, 6230, 6260 SERIES DC-19-3.1-3
SHARP PC3020, 3040, 3060, 3080, 3150, 9000, 9010, 9020, 9030, 9050 DC-19-3.1-1.1
SONY VAIO SERIES DC-20-3.0-C
TEXAS INSTRUMENTS EXTENSA 450, 455, 510, 551, 600, 600CD, 600CDT, 605, 605CD, 605CDT, 610, 610CD, 610CDT, 616, 650, 650CD, 650CDT, 655, 655CD, 655CDT, 660, 660CD, 660CDT, 665, 665CDT, 670, 670CDT, 671CDT, 900, 900T, 900CDT DC-19-3.1-1.1
  EXTENSA 550, 555, 560, 565, 570, 575 DC-19-3.1-2.1
  TRAVELMATE 4000M DC-18-3.3-2.1
  TRAVELMATE 5000, 5100, 5200, 5300, 6000, 6020, 6030, 6050 DC-15-3.3-2.1
TOSHIBA DYNAPAD T200, T200CS, LIBRETTO 50CT, 70CT, PORTEGE 300CT, 320CT, 610, 610CT, 620CT, 650, 650CT, 660CDT, 660CT, T3400C/CT, 3600C/CT, SATELLITE 220CDS, 225CDS, 305CDS/CDT, 310CDS, 315CDS/CDT, 320CDS/CDT, 325CDS,
330CDS/CDT, 335CDS/CDT, 1555CDS, 2060CDS, 2060CDT, 2065CDS/CDT, 2100CDS/CDT, 2105CDS/CDT, 2505CDS, 2515CDS, 2530CDS, 2535CDS/CDT, 2540CDS, 2545CDS/XCDT, 2595CDS/CDT/XDVD, 2615DVD, 2655XDVD, 4000CDS/CDT, 4005CDS/CDT, 4010CDS/CDT, 4015CDS/CDT, 4020CDT, 4025CDS/CDT, 4030CDS/CDT, 4060CDT, 4080XCDT, 4090XDVD,
4100XDVD, SATELLITE PRO 440CDT/X, 445CDT/CDX, 460CDT/CDX, 465CDX, 470CDT, 480CDT, 490CDT, 490XCDT, SATELLITE T1800, T1850, T1850C, T4500, T4500C, T4600, T4600C		 DC-15-3.3-2.1
  SATELLITE PRO T2400CS, T2400CT, T2450CT, SATELLITE T1900, T1900C, T1910, T1910CS, T1950CS, T1950CT, T1960CS, T4700C/CS/T, T4800C/CT, T4900CT, T4950CT DC-18-3.3-2.1