IC SOCKET SUMMARY				3-31-88

The following is a summary of the part number conversion from the old IC socket
series, 79-42Cxx, to the new series, 17925x-xxx.  Open framed sockets are specified
for those with row-to-row pin widths of 0.600" and 0.900".  Open or closed may be
specified for 0.300" or 0.400".


OLD P/N	   NEW P/N	  DESCRIPTION	   ROW	     FRAME of          FRAME of
					  WIDTH      NEW P/N	       OLD P/N

79-42C08   179259-008	Socket,IC,8ckt	  0.300    Open or closed    Open or closed
79-42C14   179259-014 	Socket,IC,14ckt	  0.300    Open or closed    Open or closed
79-42C16   179259-016 	Socket,IC,16ckt	  0.300    Open or closed    Open or closed
79-42C18   179259-018 	Socket,IC,18ckt	  0.300    Open or closed    Open or closed
79-42C20   179259-020 	Socket,IC,20ckt	  0.300    Open or closed    Open or closed
none       179259-022 	Socket,IC,22ckt	  0.300    Open or closed	n/a
none       179259-024 	Socket,IC,24ckt	  0.300    Open or closed	n/a
none	   179259-028  	Socket,IC,28ckt	  0.300    Open or closed	n/a

79-42C22   179258-022 	Socket,IC,22ckt	  0.400    Open or closed    Open or closed
none       179258-024  	Socket,IC,24ckt	  0.400    Open or closed	n/a
none	   179258-028  	Socket,IC,28ckt	  0.400    Open or closed	n/a

79-42C24   179257-024 	Socket,IC,24ckt	  0.600        OPEN *        Open or closed
79-42C28   179257-028  	Socket,IC,28ckt	  0.600        OPEN *        Open or closed
none       179257-032  	Socket,IC,32ckt	  0.600        OPEN *        	n/a
79-42C40   179257-040 	Socket,IC,40ckt	  0.600        OPEN *        Open or closed
79-42C42   179257-042  	Socket,IC,42ckt	  0.600        OPEN *        Open or closed

79-42C64   179256-064  	Socket,IC,64ckt	  0.900        OPEN *        Open or closed


*  The OPEN frames of the new parts with row-to-row spacings of 0.600" will be
approved such that they will accept an axial leaded component (capacitor)
mounted in-line with the two third pins from one end and with PC mounting holes
spaced 0.300" apart. The socket with 0.900" row-to-row spacing may have the
axial leaded component placed either in-line or across the socket's direction. 


EXAMPLE:
           _______ location/orientation of axial component for
          |        sockets with 0.600" row-to-row spacing.
          |
          V
 ___________________________________________________
|  [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] []--|--------------
|     .------------------. .------------------.     |
|     |  XX              | |                  |     |
|     |  XX              | |                  |     |         0.600"
|     |  XX              | |                  |     |
|     |  XX              | |                  |     |
|     '------------------' '------------------'     |
|  [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] []--|--------------
'---------------------------------------------------'
          |
          |
          |
          |