Collins 75S-3C

Specifications:

Frequencie Range 80 - 10m
Mode AM, CW, LSB, USB
Valves/Tubes (12)  6DC6, 6DC6, 6EA8, 6EA8, 12AX7, 6BA6, 6BA6, 6EA8, 6AT6, 6BF5, 6DC6, 6AU6
Dimensions (w×h×d) 380x180x300mm
Weight 9kg

1967

Collins 51S-1

Specifications:

Frequencie Range 0.2 - 30 MHz
Mode AM, CW, SSB
Valves/Tubes (17)  6DC6, 6BA6, 6BA6, 6BA6, 12AX7, 6BA6, 12AX7, 6BF5, 6AK6, 6BA6, 6U8A, 6U8A, 6U8A, 6136, 5670, 6U8A, 6U8A
Dimensions (w×h×d) 343x170x381mm
Weight 12kg

1960

Collins 51J-4

Specifications:

Frequencie Range 500kHz - 32 MHz
Mode AM, CW, MCW
Valves/Tubes (18) 6AK5, 6BE6, 6BE6, 6BA6, 6AK5, 6BE6, 6BA6, 6BA6, 6BA6, 6BA6, 12AX7, 12AU7, 12AX7, 6AQ5, 6BA6, 6BA6, 6BA6, 5V4, 0A2
Dimensions (w×h×d) 536x318x351mm
Weight 29kg

1957

Collins R-390A

Specifications:

Frequencie Range 500kHz - 32 MHz
Mode AM, CW, MCW, FM
Valves/Tubes (30) 6AJ5, 6BJ6, 6C4, 6AJ5, 6C4, 6AJ5, 6C4, 5749, 6BJ6, 6BJ6, 6BJ6, 6BJ6, 6BJ6, 6AK6, 12AU7, 5749, 12AU7, 12AU7, 12AU7, 6AK6, 6AK6, 6BJ6, 12AU7, 12AU7, 12AU7, 26Z5, 26Z5, 6082, 6082, 5651, 5651, 6BH6
Dimensions (w×h×d) 483x267x438mm
Weight 30.00kg

1951

Collins 75A-3

Specifications:

Band Range
160  1.5 - 2.5
80   3.2 - 4.2
40   6.8 - 7.8
20  14.0 - 15.0
15  20.8 - 21.8
11  26.0 - 28.0
10  28.0 - 30.0

Mode AM, CW, MCW
Valves/Tubes (17) 6CB6, 6BA7, 12AT7, 6BA7, 6BA6, 6BA6, 6BA6, 6AL5, 12AX7, 6AL5, 6AQ5, 6BA6, 5Y3GT, 6BA6, 6BA6, 6AL5, 0A2, 6BA6
Dimensions (w×h×d) 538x318x333mm
Weight 25.00kg

1952

Collins 75A-2

Specifications:

Band Range
160  1.5 - 2.5
80   3.2 - 4.2
40   6.8 - 7.8
20  14.0 - 15.0
15  20.8 - 21.8
11  26.0 - 28.0
10  28.0 - 30.0

• Mode AM, CW, MCW
• Valves/Tubes (16) 6AK5, 6BE6, 12AT7, 6BE6, 6BA6, 6BA6, 6BA6, 6BA6, 6BA6, 6AL5, 6BA6, 6AL5, 12AX7, 6AL5, 6AQ5, 5Y3, 0A2
• Dimensions (w×h×d) 538x318x331mm
• Weight 25.00kg
  

1950

Collins 75A-1

Specifications:

Band Range
160  1.5 - 2.5
80   3.2 - 4.2
40   6.8 - 7.8
20  14.0 - 15.0
15  20.8 - 21.8
11  26.0 - 28.0
10  28.0 - 30.0

Mode AM, CW
Valves/Tubes (14) 6AK5, 6SA7, 6AK5, 6SK7, 6L7, 6SJ7, 6SG7, 6SG7, 6H6, 6SJ7, 6SJ7, 6SJ7, 6V6GT, 5Y3GT
Dimensions (w×h×d) 536×311×351mm
Weight 25.00kg

1949

Collins 75A-4

Specifications:

Band Range
160  1.5 - 2.5
80   3.2 - 4.2
40   6.8 - 7.8
20  14.0 - 15.0
15  20.8 - 21.8
11  26.5 - 27.5
10  28.0 - 29.0
10  29.0 - 30.0
Mode AM,  CW,  SSB
Valves/Tubes (21) 6BA6, 6DC6, 6BA7, 12AT7, 6BA7, 6BA6, 12AX7, 6BA6, 6BA6, 6AL5, 12AU7, 6AL5, 12AT7, 6BA6, 6BA6, 6AL5, 5Y3GT, 0A2, 6AL5, 6BA6, 6BA6, 6AQ5
Dimensions (w×h×d) 432×266×381 mm (17.01 × 10.47 × 15.00 in)
Weight 16.00 kg

1955

Collins Receivers

 

W0CXX - Arthur A. Collins
Founder of the Collins Radio Company

Collins 75A-1
Collins 75A-2
Collins 75A-3
Collins 75A-4
Collins R-390A
Collins 51J-4
Collins 51S-1
Collins 75S-3C

Arthur A. Collins founded Collins Radio Company, 1933 in Cedar Rapids, Iowa. It designed and produced both shortwave radio equipment and equipment for the burgeoning AM radio broadcast industry. 

Collins was solicited by the military, the scientific community, and the larger AM radio stations for special equipment. 

Collins supplied the equipment to establish a communications link with the South Pole expedition of Rear Admiral Richard E. Byrd in 1933.