Resource Site for information on the
Select-O-Phone
Manufactured by the Screw Machine Products Company, Providence, RI
Manufactured from about 1918 to March 1948 when the company was sold to Kellogg Switchboard and Supply
Manufactured by Kellogg from 1948 until about 1965
For more information on Kellogg Switchboard and Supply go to our sister website:
www.kelloggtelephone.com
     
PDF PATENTS ASSIGNED TO OR USED BY SELECT-O-PHONE    
PDF 1920 SELECT-O-PHONE MAILER BROCHURE    
PDF 1921 SELECT-O-PHONE MANUAL "GETTING THE MOST OUT OF TIME"  
PDF 1927 CUSTOMER LIST FOLDER    
PDF 1928 TECHNICAL ARTICLE ON THE SOP SWITCH    
PDF 1947 KELLOGG SELECT-O-PHONE BULLETIN NR 815    
PDF 1954 SELECT-O-PHONE INSTALLATION MANUAL (NEW)  
PDF 1958 KELLOGG SELECT-O-PHONE BULLETIN NR 5827  
PDF 1960 KELLOGG CODE BOOK SELECT-O-PHONE SECTION A-82  
PDF SELECT-O-PHONE ADVERTISEMENTS    
     
PULL DOWN TO THE BOTTOM OF THE PAGE TO SEE THE JKL MUSEUM SOP SWITCH
   
Kellogg 11A dial with SOP dial card circ 1948
Model 1017 SOP made on a Redbar style set circa 1948
Note that this early SOP verison of the Redbar used the older F26 handset and a "door bell" push button.
Later Redbar SOP's used the F46 handset and then later the red Switchcraft pushbutton.
SOP 36 STATION SET BUILT ON A WE 202 BASE AND HANDSET
CIRCA 1947
1951
Pictures below are from the jklmuseum.com website, courtesy of Wayne Merit
36 Sta set based on Kellogg hotel Desk set based on Kellogg stick and DK1000 33 station SOP custom dial
SOP tested with all the set types SOP switch while under test after a 30 sleep
Background a desk stand using a Kellogg base and AE handset, forground a "modern" K500 style set using a special dial for SOP.
This site is owned and maintained by Mike Neale a member of:
              
         
       
COMMENTS OR QUESTIONS?  SOMETHING TO CONTRIBUTE?  PHOTOS, DOCS?  EMAIL KELLOGG MIKE AT kelloggtelephone@gmail.com
6-Jan-10