<DOCUMENT>
<TYPE>EX-12.1
<SEQUENCE>3
<FILENAME>y66353a1ex12-1.txt
<DESCRIPTION>COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES
<TEXT>
<PAGE>

                                                                    Exhibit 12.1


                        SPX CORPORATION AND SUBSIDIARIES
                COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES

      The following table sets forth the ratio of earnings to fixed charges
 for SPX for the years ended December 31, 1996, 1997, 1998, 1999, and 2000 and
for the nine months ended September 30, 2000 and September 30, 2001. All dollar
    amounts presented in this exhibit are stated in millions, except ratios.


<TABLE>
<CAPTION>

                                                                                                            Nine months ended
                                                              Year ended December 31                            September 30,
                              ------------------------------------------------------------------------- ----------------------------
                                  1996 (5)       1997 (6)       1998 (7)       1999 (8)       2000 (9)     2000 (10)      2001 (11)
                              -------------  -------------  -------------  -------------   ------------ -------------  -------------
<S>                           <C>            <C>            <C>            <C>             <C>          <C>            <C>

Ratio of earnings to fixed
  charges (1)(2)                       5.7            7.7           (0.3)           1.8            3.0           4.3            2.9

Earnings:
Pretax income from contin-
  uing operations                  $ 133.4        $ 131.0        $ (41.7)       $ 107.5        $ 198.3       $ 252.6        $ 192.6
Fixed Charges                         28.3           19.6           51.0          126.0          101.8          75.7           99.1
JV Earnings, net of distri-
  butions                                -              -          (24.7)          (3.2)           0.3          (0.8)          (0.3)
                              -------------  -------------  -------------  -------------   ------------ -------------  -------------
Total Earnings                     $ 161.7        $ 150.6        $ (15.4)       $ 230.3        $ 300.4       $ 327.5        $ 291.4

Fixed Charges:
Interest (3)                       $  21.5        $  13.2        $  45.1        $ 117.6        $  95.0       $  70.6        $  94.6
Rent expense interest
  factor (4)                           6.8            6.4            5.9            8.4            6.8           5.1            4.5
                              -------------  -------------  -------------  -------------   ------------ -------------  -------------
Total fixed charges                $  28.3        $  19.6        $  51.0        $ 126.0        $ 101.8       $  75.7        $  99.1

</TABLE>


      (1)   For the purpose of determining the ratio of earnings to fixed
            charges, earnings consists of income from continuing operations and
            fixed charges.

      (2)   On October 6, 1998 (the "Merger Date"), General Signal Corporation
            ("GSX") was merged into a subsidiary of SPX Corporation (the
            "Merger"). The Merger was accounted for as a reverse acquisition
            whereby GSX was treated as the acquirer and SPX as the target.

      (3)   Interest expense consists of net interest expense on indebtedness
            and amortization of deferred financing expenses.

      (4)   One-third of net rental expense is deemed representative of the
            interest factor.

            EARNINGS FOR YEARS ENDED DECEMBER 31, 1996, 1997, 1998, 1999 AND
            2000 AND THE NINE MONTHS ENDED SEPTEMBER 30, 2000 AND 2001 INCLUDE
            THE FOLLOWING SPECIAL CHARGES AND OTHER UNUSUAL ITEMS:

      (5)   In 1996, we negotiated a royalty settlement related to a previously
            divested semiconductor business and received and recorded $4.0 of
            royalty income. We also recorded charges of $20.0 for asset
            write-downs, lease termination costs, severance, warranty repairs
            and environmental matters.

      (6)   We recorded other charges of $17.9 in 1997. We also recorded a $63.7
            pre-tax gain on the sale of General Signal Power Group and a $9.0
            pre-tax gain on the sale of an equity interest.

<PAGE>

      (7)   In 1998, earnings were not sufficient to cover fixed charges by
            approximately $42.0. We recorded special charges of $101.7 and other
            charges of $108.2 in 1998.

      (8)   We recorded special charges of $38.4 in 1999 for merger and
            restructuring initiatives. We also recorded a $23.8 pre-tax gain on
            the divestiture of Best Power, a $29.0 pre-tax gain on the
            divestiture of Dual-Lite and an investment in a Japanese joint
            venture, and a $13.9 pre-tax gain on the sale of marketable
            securities.

      (9)   We recorded special charges of $103.2 in 2000. These charges are
            primarily associated with workforce reductions, asset impairments,
            product rationalizations, and other restructuring actions to
            consolidate manufacturing and sales facilities. $12.3 of the charge
            was recorded in cost of products sold. Additionally, our subsidiary
            Inrange Technologies, issued 8,855,000 shares of its class B common
            stock for cash in an initial public offering. Accordingly, we
            recorded a $98.0 pre-tax gain. We also recorded a $23.2 pre-tax gain
            on the settlement of a patent infringement suit against American
            Power Conversion Corporation in 2000.

      (10)  For the nine months ended September 30, 2000, we recorded special
            charges of $97.8 ($12.3 is included in cost of products sold). These
            charges are primarily associated with work force reductions, asset
            impairments, product rationalizations, and other restructuring
            actions to consolidate manufacturing and sales facilities.
            Additionally, we recorded a $23.2 pre-tax gain on the settlement of
            a patent infringement suit against American Power Conversion
            Corporation as well as a $98.0 pre-tax gain on the public issuance
            of stock in our Inrange subsidiary.

      (11)  For the nine months ended September 30, 2001 we recorded special
            charges of $61.4 ($13.5 is included in cost of products sold). These
            charges related primarily to work force reductions, asset
            write-downs, and other cash costs associated with plant
            consolidation, exiting certain product lines, and other
            restructuring actions. This charge also consisted of amounts of $4.1
            and $14.9 primarily related to the abandonment of an internet-based
            software system and the costs associated with the announced move of
            our corporate headquarters. We recorded an $11.8 pre-tax loss
            associated with the divestiture of substantially all of the assets
            and liabilities of our GS Electric business.


</TEXT>
</DOCUMENT>
