Sparton Radio Service Repair Manual 2 & 3 "HUGE SET" CD

Description

Schematics Tube These Schematics Cover all the SPARTON Radio’s Listed  1926 to 1932 1926 – 1927 – 1928 – 1929 – 1930 – 1931 – 1932
and many other Years, see Model # covered. This is a wealth of information for any Radio wanting to be repaired or parting out. This is a large Manual on CD w/ Adobe Reader – Radio Models covered are:
SPARTON BULLETIN SERVICE MANUAL  - THE SPARKS - WITHINGTON COMPANY , Jackson, Michigan , USAA - SPARTON of Canada , Limited.
London , Ontario , Canada ..
Manual # 2
Model
33A
33B
43S
1600
2400
44P
46P
53
57 A
57 B
58
65
66
66T
65T
67
68
68XS
70
71
71B
72
72PQ
73
73AX
73BX
74
75A
75AX
76
77
78
80
81
81A
82
83
84
85X
86X
104
105X
134
135
136
333
475A
475AX
478
478A
478AX
506
516
516X
536
536X
546X
566
594
616
616M
616MX
616X
636MX
655
666
666M
666MX
666X
S676
685
D686
H686
691
716X726X
766
766X
766XP
766XS
785
835
966
966X
1016X
1066
1116-X
1166
1166XP
1166XS
1176XS
1176XP
1186
1196
1466
1476
Manual 3 ...Models Covered:   Superheterodyne  Model  417 X , 977 , 427X . 437X , 457X , 517 , 517W , 557 , 517B , 517X , 567 ,
517 , 517B , 517W , 517X , 557 , 567 , 547X , 537 , 577 , 527-2 , 587-2 , 617 , 617X , 667 , 667X , 637-6 , 687-6 , 727X , 727XD , 877X,
867 , 827X, 897 , 827XD , 877X , 997X , 1167 , 987 . 1167 , 1567 , 1867 , Plus General servicing Information covering all 1938 Radios , 738
Selectime , 1068 , 1268 , 1568 , 518 , 558B , 558C , 568, 578 , 518X , 558BX , 558CX , 568X , 578X , 528-2 , 588-2 , 538, 628, 668 , 678 , 538X , 628X , 668X , 678X , 548X , 608, 608-R , 608-G , 608-W , 608-K , 608-V , 638-6 , 688-6 , 728X , 738 , 748X , 768 , 778 , 768X , 778X , 928X , 968 , 968W , 1068 , 1078 , 1068W , 1078X,
1268 , 1288P , 1288-LPX ,
Radio and Television Production in the 1930s and 1940s
The Sparks-Withington Company was officially incorporated in
Ohio
in 1916 and then reincorporated in 1919 when shares in the company began to be sold on the New York Stock Exchange. After a brief period of military production during World War I, Sparks-Withington used its growing expertise in the electronics field to bring out a line of battery powered radios, followed in 1926 by production of the country's first all-electric radio, promoted as "Radio's Richest Voice." While many American companies suffered during the Great Depression, Sparks-Withington expanded. In 1930, the company formed a wholly-owned Canadian subsidiary, Sparton of Canada, Ltd., to introduce the Sparton radio line in
Canada
. In the same year, the company acquired the Cardon-Phonocraft Company of
Jackson
,
Michigan
, and integrated their radio tubes and combination radio-phonograph products into the Sparton line. Sparks-Withington further expanded their radio accessory business with the purchase of Home Products Corp. of
Michigan
. In 1932, the company entered a new market with the introduction of the Sparton electric refrigerator. The intense competition in this industry was largely responsible for the company's 1938 net loss of ,000, however, and the company dropped the product line by the end of the decade.
By the beginning of the 1940s, Sparks-Withington was operating five factories in
Jackson
,
Michigan
, in addition to their Canadian subsidiary's facility in
London
,
Ontario
. Annual sales topped million. Like most American manufacturers, Sparks-Withington switched to military production during World War II, manufacturing bomb hoists, communications equipment, magazine clips, and a wide variety of other military products for the war effort. With a return to peace, Sparks-Withington set out once again to expand its range of products. In 1945, the company acquired the Illinois-based Steger Furniture Manufacturing Co. to manufacture cabinets for the radio and radio-phonographs that had become the mainstay of the Sparton product line.
This is a Huge Manual that covers a lot of ground, sure to help with any repair or restoration of your RADIO.
This Manual does cover a lot of ground and cover I believe all  Models Listed. 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. This is a High Quality, Easy to read re-production from Original Schematics. (Note: Picture shown is only an Example) Good Luck. Key Crosley Manual CD (Remember this is a CD, You must be satisfied with its operation, no complaints yet. Copyright Reserved and CD Coded for Tracing . This is a CD and comes w/ Adobe Reader. Great CD with Thumbnails and easy to Print from.