1919-46 Hammarlund Inc. Shortwave Radio Schematics These Schematics Cover 99% of the Hammarlund Mfg. Co. Radio’s from 1919 to 1946 Vintage Shortwave Schematics This is a wealth of information for any Radio wanting to be repaired or parting out. Radio Models covered are: Hammarlund Mfg. Co.. AC & DC Conv , Comet Pro Dec. 1931, Comet Pro July ’32 , Comet Pro Sep. ‘32 And Comet Pro Oct. ’32 , Comet Pro Feb. ’33 , Comet Pro AVC, Comet Pro Crystal, Comet Pro Standard, Commander, DeLuxe , Hawk , Super Pro , Trans Oceanic Two, HQ120X Crystal, HQ120X (Late), HQ129X , SP110X , SP120X , SP200SX Early & Late , SP200X Late , SP210LX , SP210SX, SP210X , SP220LX, SP220SX , SP220X, SP400SX , SP400X , SPR110X , SPR120X , SPR210LX , SPR210SX , SPR210X, SPR220LX , SPR220SX , SPR220X , Also the Hard to find Z4 is Included. Hammarlund Mfg. Co. Inc , 460 West 34th St. , New York 1 , New York. ( I do not think this address is still good, but include it for Search Engine Use) These are all the models Shown for the Years shown. These Schematics show how to troubleshoot all the tubes and how to bring A non-working unit back to life, even if you can not read these schematics or Diagrams they are invaluable to a Service Technician working on a Older Unit. Plate Voltages are shown, Capacitor and resistor Values are show if one is Burned up or missing. All Tube Numbers are shown if a tube is missing. Speaker Field resistance values are shown to aid in troubleshooting the Speaker and Sound output. Tubetype Radio – Tube – Tubes - Vacuum Values, Old Radio Repair **If you are In search of another Schematic, Please Inquire.*** This is a High Quality, Easy to read re-production from Original Schematics. Note: Picture shown is only an Example. Key- ALL Good Luck. Shipping 3.50