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 75A4  (Howard Mills)
Collins 75A4 (Howard Mills)
Ends in 14 Hours 17 Minutes 59 Seconds
Current price: $532.00 (6 bids)
SON WCC-LC-6 VINTAGE 6FT AC POWER CABLE CORD BLACK
SON WCC-LC-6 VINTAGE 6FT AC POWER CABLE CORD BLACK
Ends in 2 Days 12 Hours 45 Minutes 59 Seconds
Current price: $16.95 (24 bids)
TUBE  KIT  FOR  COLLINS  75A4
TUBE KIT FOR COLLINS 75A4
Ends in 2 Days 16 Hours 45 Minutes 38 Seconds
Current price: $129.00 (115 bids)
COLLINS  75A-1  TUBE  KIT
COLLINS 75A-1 TUBE KIT
Ends in 2 Days 16 Hours 55 Minutes 6 Seconds
Current price: $75.00 (32 bids)
TUBE  KIT  FOR  COLLINS  75A2
TUBE KIT FOR COLLINS 75A2
Ends in 2 Days 16 Hours 56 Minutes 41 Seconds
Current price: $89.00 (13 bids)
TUBE  KIT  FOR  COLLINS  75A3
TUBE KIT FOR COLLINS 75A3
Ends in 2 Days 16 Hours 58 Minutes 9 Seconds
Current price: $98.00 (24 bids)
Collins 75A-4 Ham Radio Receiver, AM/CW/SSB 160-10
Collins 75A-4 Ham Radio Receiver, AM/CW/SSB 160-10
Ends in 2 Days 17 Hours 49 Minutes 13 Seconds
Current price: $995.00 (0 bids)
1956 Print Ad of Walter Ashe Radio Co Collins 75A-
1956 Print Ad of Walter Ashe Radio Co Collins 75A-
Ends in 2 Days 20 Hours 54 Minutes 56 Seconds
Current price: $8.99 (0 bids)
Nice HQ Copy Collins 75A-4 HAM Radio Receiver Owne
Nice HQ Copy Collins 75A-4 HAM Radio Receiver Owne
Ends in 3 Days 11 Hours 31 Minutes 39 Seconds
Current price: $29.99 (0 bids)
Reprint Radio Manual Collins 75A-1 Receiver Lot47
Reprint Radio Manual Collins 75A-1 Receiver Lot47
Ends in 3 Days 17 Hours 31 Minutes 37 Seconds
Current price: $20.00 (0 bids)
SSB Adapter for Collins 75A-2 and 75A-3 Receivers
SSB Adapter for Collins 75A-2 and 75A-3 Receivers
Ends in 4 Days 11 Hours 57 Minutes 9 Seconds
Current price: $60.89 (0 bids)
Collins 75A-4 Instruction Manual: 11’ X 23&r
Collins 75A-4 Instruction Manual: 11’ X 23&r
Ends in 5 Days 58 Minutes 26 Seconds
Current price: $18.95 (12 bids)
Collins 75A-2 Instruction Manual: 11’ X 20&r
Collins 75A-2 Instruction Manual: 11’ X 20&r
Ends in 5 Days 58 Minutes 26 Seconds
Current price: $17.95 (5 bids)
Collins 75A-3 Instruction Manual - Premium Card St
Collins 75A-3 Instruction Manual - Premium Card St
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Current price: $17.95 (0 bids)
Collins 75A-1 Instruction Manual: w/ 11’X17&
Collins 75A-1 Instruction Manual: w/ 11’X17&
Ends in 5 Days 58 Minutes 27 Seconds
Current price: $17.95 (4 bids)
Manual For Collins 75A-3 Amateur Receiver, Early
Manual For Collins 75A-3 Amateur Receiver, Early
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Current price: $17.95 (0 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 (16 bids)
Manual For Collins 75A-4 Amateur Receiver, Early
Manual For Collins 75A-4 Amateur Receiver, Early
Ends in 8 Days 15 Hours 29 Minutes 49 Seconds
Current price: $19.95 (0 bids)
Collins 75A-1 80 - 10 Meter Ham Radio Receiver for
Collins 75A-1 80 - 10 Meter Ham Radio Receiver for
Ends in 8 Days 15 Hours 39 Minutes 9 Seconds
Current price: $522.75 (0 bids)
Collins 75A-2, 75A-3  NEW Chassis Mounted Replacem
Collins 75A-2, 75A-3 NEW Chassis Mounted Replacem
Ends in 8 Days 19 Hours 42 Minutes 45 Seconds
Current price: $43.99 (9 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: $18.95 (71 bids)
GC 1450 CHICAGO DAKA-WARE 11/16’ ROUND RADIO
GC 1450 CHICAGO DAKA-WARE 11/16’ ROUND RADIO
Ends in 8 Days 20 Hours 59 Minutes 23 Seconds
Current price: $9.95 (22 bids)
MC 8/32 3/16’ KNOB SET SCREW 20PC FOR COLLIN
MC 8/32 3/16’ KNOB SET SCREW 20PC FOR COLLIN
Ends in 9 Days 20 Hours 14 Minutes 11 Seconds
Current price: $7.95 (19 bids)
Collins 75A-3 160-10M AM / CW Ham Receiver + Orig
Collins 75A-3 160-10M AM / CW Ham Receiver + Orig
Ends in 10 Days 14 Hours 15 Minutes 42 Seconds
Current price: $660.25 (0 bids)
Collins 75A-1 80 - 10 Meter Ham Radio Receiver for
Collins 75A-1 80 - 10 Meter Ham Radio Receiver for
Ends in 10 Days 14 Hours 15 Minutes 46 Seconds
Current price: $584.25 (0 bids)
Collins 75A-2 NEW Capacitor Replacement Kit
Collins 75A-2 NEW Capacitor Replacement Kit
Ends in 10 Days 18 Hours 21 Minutes 21 Seconds
Current price: $64.99 (25 bids)
Collins 75A-4 NEW  26 Piece Capacitor Replacement
Collins 75A-4 NEW 26 Piece Capacitor Replacement
Ends in 10 Days 18 Hours 21 Minutes 22 Seconds
Current price: $169.99 (57 bids)
Collins 75A-2 & 75A-3 Frequency Drum Overlay
Collins 75A-2 & 75A-3 Frequency Drum Overlay
Ends in 10 Days 18 Hours 41 Minutes 49 Seconds
Current price: $12.99 (27 bids)
Collins 75A-4 Frequency Drum Overlay 15m  20.5-21.
Collins 75A-4 Frequency Drum Overlay 15m 20.5-21.
Ends in 10 Days 18 Hours 41 Minutes 52 Seconds
Current price: $12.99 (30 bids)
Collins 75A-4 Frequency Drum Overlay 15m  20.8-21.
Collins 75A-4 Frequency Drum Overlay 15m 20.8-21.
Ends in 10 Days 18 Hours 41 Minutes 55 Seconds
Current price: $12.99 (45 bids)
Collins 75A-3 Amateur Receiver Manual HAM RADIO
Collins 75A-3 Amateur Receiver Manual HAM RADIO
Ends in 10 Days 22 Hours 37 Minutes 56 Seconds
Current price: $13.99 (7 bids)
Collins 75A-4 Communications Receiver w/3 Filters
Collins 75A-4 Communications Receiver w/3 Filters
Ends in 12 Days 19 Hours 1 Minutes 38 Seconds
Current price: $625.00 (0 bids)
COLLINS 75A-2 AM / CW / SSB Ham Radio Receiver w/
COLLINS 75A-2 AM / CW / SSB Ham Radio Receiver w/
Ends in 12 Days 19 Hours 55 Minutes 7 Seconds
Current price: $415.00 (0 bids)
Collins 75A-4 Vintage Ham Radio Receiver w/ Mechan
Collins 75A-4 Vintage Ham Radio Receiver w/ Mechan
Ends in 13 Days 17 Hours 46 Minutes 42 Seconds
Current price: $1,367.05 (0 bids)
CEA-LCD-6 Black Vintage Non-polarized AC Cord Fits
CEA-LCD-6 Black Vintage Non-polarized AC Cord Fits
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Current price: $12.95 (0 bids)
Collins 75A-4, 4:1 Spinner Knob Reproduction NICE!
Collins 75A-4, 4:1 Spinner Knob Reproduction NICE!
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Current price: $74.99 (81 bids)
AF GAIN CONTROL for COLLINS 75A-4 RECEIVER
AF GAIN CONTROL for COLLINS 75A-4 RECEIVER
Ends in 15 Days 10 Hours 3 Minutes 7 Seconds
Current price: $25.95 (0 bids)
FRONT PANEL BEZEL for COLLINS 75A-4 RECEIVER
FRONT PANEL BEZEL for COLLINS 75A-4 RECEIVER
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Current price: $44.95 (0 bids)
EMBLEM / LOGO for COLLINS 75A-4 RECEIVER
EMBLEM / LOGO for COLLINS 75A-4 RECEIVER
Ends in 15 Days 10 Hours 3 Minutes 7 Seconds
Current price: $29.95 (0 bids)
AVC SWITCH for COLLINS 75A-4 RECEIVER
AVC SWITCH for COLLINS 75A-4 RECEIVER
Ends in 15 Days 10 Hours 3 Minutes 7 Seconds
Current price: $25.95 (0 bids)

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