Collins 75A

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Art Collins founded Collins Radio Company in 1933 in Cedar Rapids, Iowa for the purpose of designing and producing both shortwave and AM broadcast radio equipment and equipment.

The company introduced their first amateur radio receiver, the 75A-1 around 1947. This unit achieved excellent stability due to high build quality and the use of a permeability tuned oscillator (PTO) in its second conversion stage. It was one of the few dual-conversion superheterodyne receivers manufactured at that time and was designed to receive only the amateur bands.

The 75A amateur line was continued throughout the early 50s, ending with the 75A-4, released in 1955. The Collins mechanical filter was introduced in the 75A-3, and the 75A-4 was one of the first receivers marketed specifically as a single sideband receiver.

In 1958 the 75A series was replaced with the much smaller 75S series, part of the S/Line. These top-end receivers featured mechanical filters, excellent stability and very accurate frequency readout.

With the introduction of the S/Line in 1958, Collins moved to an integrated equipment system, making them the first manufacturer to take this approach. Collins was also introduced a compact HF transceiver, the KWM-1, the year before. These two innovations put Collins ahead of its competition and set the stage for other amateur radio equipment makers and the next generation of HF radios.

In 1978, the S/Line came to an end after a two decade run. The KWM-380 transceiver was introduced the next year – innovative in its use of transistors and digital technology, and its styling. It was Collins’ final entry in the amateur radio market until it was discontinued in the mid-1980s.

The Collins Radio Company was purchased by Rockwell International in 1973. In 2001 the avionics division of Rockwell International was spun off to form the current Rockwell Collins, Inc., retaining its name. Rockwell Collins serves the defense and commercial avionics industries and no longer markets receivers to the public. The company today employs over 19,000 people.

More information on Collins Radio:
Wikipedia reference on Collins Radio
Collins Collectors Association
Virtual Collins Radio Museum

Collins 75A EBay Bargains!

Collins 75A1 75-A1 receiver & 270G-1 Speaker H
Collins 75A1 75-A1 receiver & 270G-1 Speaker H
Ends in 19 Hours 18 Minutes 8 Seconds
Current price: $500.00 (0 bids)
Collins 75A-3 NEW Capacitor Replacement Kit
Collins 75A-3 NEW Capacitor Replacement Kit
Ends in 1 Days 10 Hours 51 Minutes 31 Seconds
Current price: $64.99 (5 bids)
COLLINS 75A-4 RECEIVER OPERATING & SERVICE MAN
COLLINS 75A-4 RECEIVER OPERATING & SERVICE MAN
Ends in 1 Days 14 Hours 36 Minutes 53 Seconds
Current price: $49.95 (0 bids)
Org PhotoFact Schematic Collins 75A-1 34-4
Org PhotoFact Schematic Collins 75A-1 34-4
Ends in 2 Days 8 Hours 30 Minutes 18 Seconds
Current price: $12.95 (0 bids)
Collins 75A-3 Receiver
Collins 75A-3 Receiver
Ends in 2 Days 9 Hours 52 Seconds
Current price: $230.00 (0 bids)
Collins 75A-2 Receiver, With Cabinet, Original Cir
Collins 75A-2 Receiver, With Cabinet, Original Cir
Ends in 2 Days 9 Hours 34 Minutes 31 Seconds
Current price: $225.00 (0 bids)
Collins 75A-4 Instruction Manual  😊😊C-MY OTH
Collins 75A-4 Instruction Manual 😊😊C-MY OTH
Ends in 2 Days 11 Hours 5 Minutes 32 Seconds
Current price: $24.95 (1 bid)
COLLINS 75A4 COMPENDIUM -- A MANUAL OF PUBLISHED A
COLLINS 75A4 COMPENDIUM -- A MANUAL OF PUBLISHED A
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Current price: $1.00 (1 bid)
Collins 75A-2 Receiver
Collins 75A-2 Receiver
Ends in 4 Days 20 Hours 42 Minutes 49 Seconds
Current price: $400.00 (0 bids)
TUBE  KIT  FOR  COLLINS  75A4
TUBE KIT FOR COLLINS 75A4
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Current price: $129.00 (124 bids)
COLLINS  75A-1  TUBE  KIT
COLLINS 75A-1 TUBE KIT
Ends in 5 Days 14 Hours 4 Minutes 49 Seconds
Current price: $75.00 (35 bids)
TUBE  KIT  FOR  COLLINS  75A2
TUBE KIT FOR COLLINS 75A2
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Current price: $89.00 (14 bids)
TUBE  KIT  FOR  COLLINS  75A3
TUBE KIT FOR COLLINS 75A3
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Current price: $98.00 (26 bids)
6L7 Sylvania USA Tube NOS CV1951 Heptode Collins 7
6L7 Sylvania USA Tube NOS CV1951 Heptode Collins 7
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Current price: $3.74 (1 bid)
Collins 75A-2, 75A-3  NEW Chassis Mounted Replacem
Collins 75A-2, 75A-3 NEW Chassis Mounted Replacem
Ends in 5 Days 16 Hours 52 Minutes 28 Seconds
Current price: $43.99 (11 bids)
COLLINS 75A-2 / 75A-3/ 75A-4 receiver  front panel
COLLINS 75A-2 / 75A-3/ 75A-4 receiver front panel
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Current price: $21.99 (4 bids)
GENUINE COLLINS 75A4 CW FILTER F455 J 05  --  .5KH
GENUINE COLLINS 75A4 CW FILTER F455 J 05 -- .5KH
Ends in 7 Days 9 Hours 37 Minutes 17 Seconds
Current price: $139.00 (0 bids)
GENUINE COLLINS 75A4 FILTER F455 J 15  --  .1.5,
GENUINE COLLINS 75A4 FILTER F455 J 15 -- .1.5,
Ends in 7 Days 9 Hours 42 Minutes 29 Seconds
Current price: $139.00 (0 bids)
Collins 75A-4 Chassis Mounted Capacitor Can Nickle
Collins 75A-4 Chassis Mounted Capacitor Can Nickle
Ends in 8 Days 12 Hours 7 Minutes 8 Seconds
Current price: $44.99 (33 bids)
GC 1400W CHICAGO DAKAWARE 11/16’ ROUND POINT
GC 1400W CHICAGO DAKAWARE 11/16’ ROUND POINT
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Current price: $9.95 (17 bids)
GC 4107 CHICAGO DAKAWARE 1-3/8’ SKIRTED FLUT
GC 4107 CHICAGO DAKAWARE 1-3/8’ SKIRTED FLUT
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Current price: $19.95 (95 bids)
GC 1450 CHICAGO DAKA-WARE 11/16’ ROUND RADIO
GC 1450 CHICAGO DAKA-WARE 11/16’ ROUND RADIO
Ends in 8 Days 18 Hours 9 Minutes 6 Seconds
Current price: $9.95 (25 bids)
MC 8PC SET BLACK CABINET TRIM MACHINE SCREW FOR CO
MC 8PC SET BLACK CABINET TRIM MACHINE SCREW FOR CO
Ends in 13 Days 19 Hours 3 Minutes 45 Seconds
Current price: $8.45 (26 bids)
Manual For Collins 75A-3 Amateur Receiver, Early
Manual For Collins 75A-3 Amateur Receiver, Early
Ends in 14 Days 8 Minutes
Current price: $17.95 (0 bids)
Manual For Collins 75A-1 Amateur Receiver, Early
Manual For Collins 75A-1 Amateur Receiver, Early
Ends in 14 Days 2 Hours 22 Minutes 50 Seconds
Current price: $11.95 (0 bids)
SSB Adapter for Collins 75A-2 and 75A-3 Receivers
SSB Adapter for Collins 75A-2 and 75A-3 Receivers
Ends in 14 Days 8 Hours 47 Minutes 52 Seconds
Current price: $60.49 (1 bid)
COLLINS 75A-4 SERVICE AND OPERATION MANUAL
COLLINS 75A-4 SERVICE AND OPERATION MANUAL
Ends in 16 Days 4 Hours 31 Minutes 12 Seconds
Current price: $10.00 (30 bids)
GC 4104 CHICAGO DAKAWARE 1-1/8’ SKIRTED FLUT
GC 4104 CHICAGO DAKAWARE 1-1/8’ SKIRTED FLUT
Ends in 16 Days 18 Hours 12 Minutes 23 Seconds
Current price: $19.95 (30 bids)
RF GAIN CONTROL for COLLINS 75A-4 RECEIVER
RF GAIN CONTROL for COLLINS 75A-4 RECEIVER
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Current price: $25.95 (0 bids)
AF GAIN CONTROL for COLLINS 75A-4 RECEIVER
AF GAIN CONTROL for COLLINS 75A-4 RECEIVER
Ends in 19 Days 7 Hours 31 Minutes 6 Seconds
Current price: $25.95 (0 bids)
Collins 75A-2 NEW Capacitor Replacement Kit
Collins 75A-2 NEW Capacitor Replacement Kit
Ends in 20 Days 15 Hours 31 Minutes 4 Seconds
Current price: $64.99 (30 bids)
Collins 75A-4 NEW  26 Piece Capacitor Replacement
Collins 75A-4 NEW 26 Piece Capacitor Replacement
Ends in 20 Days 15 Hours 31 Minutes 5 Seconds
Current price: $169.99 (68 bids)
Collins 75A-2 & 75A-3 Frequency Drum Overlay
Collins 75A-2 & 75A-3 Frequency Drum Overlay
Ends in 20 Days 15 Hours 51 Minutes 32 Seconds
Current price: $12.99 (28 bids)
Collins 75A-4 Frequency Drum Overlay 15m  20.5-21.
Collins 75A-4 Frequency Drum Overlay 15m 20.5-21.
Ends in 20 Days 15 Hours 51 Minutes 35 Seconds
Current price: $12.99 (32 bids)
Collins 75A-4 Frequency Drum Overlay 15m  20.8-21.
Collins 75A-4 Frequency Drum Overlay 15m 20.8-21.
Ends in 20 Days 15 Hours 51 Minutes 38 Seconds
Current price: $13.99 (60 bids)
Collins 75A1 75-A1 receiver manual NC speaker VTG
Collins 75A1 75-A1 receiver manual NC speaker VTG
Ends in 20 Days 23 Hours 3 Minutes 1 Seconds
Current price: $449.99 (0 bids)
Original Collins 75A-4 Amateur Receiver Instructuo
Original Collins 75A-4 Amateur Receiver Instructuo
Ends in 21 Days 10 Hours 57 Minutes 4 Seconds
Current price: $56.71 (0 bids)
Collins 75A-4 NEW Dave Curry Custom Made, Rockwell
Collins 75A-4 NEW Dave Curry Custom Made, Rockwell
Ends in 21 Days 11 Hours 4 Minutes 31 Seconds
Current price: $224.99 (3 bids)
Collins 75A-4 NEW Dave Curry Custom Made, Rockwell
Collins 75A-4 NEW Dave Curry Custom Made, Rockwell
Ends in 21 Days 11 Hours 7 Minutes 23 Seconds
Current price: $224.99 (1 bid)
Collins 75A-4 NEW Dave Curry Custom Made, Rockwell
Collins 75A-4 NEW Dave Curry Custom Made, Rockwell
Ends in 21 Days 11 Hours 11 Minutes 43 Seconds
Current price: $224.99 (12 bids)

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