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!

GC 4104 CHICAGO DAKAWARE 1-1/8’ SKIRTED FLUT
GC 4104 CHICAGO DAKAWARE 1-1/8’ SKIRTED FLUT
Ends in 3 Hours 28 Minutes 7 Seconds
Current price: $19.95 (33 bids)
RF GAIN CONTROL for COLLINS 75A-4 RECEIVER
RF GAIN CONTROL for COLLINS 75A-4 RECEIVER
Ends in 2 Days 16 Hours 44 Minutes 17 Seconds
Current price: $25.95 (0 bids)
RARE COLLINS 75A-2 FRONT DIAL ESCUTCHEON
RARE COLLINS 75A-2 FRONT DIAL ESCUTCHEON
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FRONT PANEL for COLLINS 75A-3 RECEIVER
FRONT PANEL for COLLINS 75A-3 RECEIVER
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Current price: $74.95 (0 bids)
FRONT PANEL for COLLINS 75A-2 RECEIVER
FRONT PANEL for COLLINS 75A-2 RECEIVER
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Current price: $74.95 (0 bids)
Collins 75A-1 Vintage Ham Radio Receiver (looks go
Collins 75A-1 Vintage Ham Radio Receiver (looks go
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Collins 75A-2 NEW Capacitor Replacement Kit
Collins 75A-2 NEW Capacitor Replacement Kit
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Collins 75A-4 NEW  26 Piece Capacitor Replacement
Collins 75A-4 NEW 26 Piece Capacitor Replacement
Ends in 4 Days 46 Minutes 49 Seconds
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Collins 75A-2 & 75A-3 Frequency Drum Overlay
Collins 75A-2 & 75A-3 Frequency Drum Overlay
Ends in 4 Days 1 Hours 7 Minutes 16 Seconds
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Collins 75A-4 Frequency Drum Overlay 15m  20.5-21.
Collins 75A-4 Frequency Drum Overlay 15m 20.5-21.
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Collins 75A-4 Frequency Drum Overlay 15m  20.8-21.
Collins 75A-4 Frequency Drum Overlay 15m 20.8-21.
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COLLINS 75A-3 Ham Radio Receiver W8HYX
COLLINS 75A-3 Ham Radio Receiver W8HYX
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Collins 75A-4 Vintage Ham Radio Receiver used. W8H
Collins 75A-4 Vintage Ham Radio Receiver used. W8H
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Collins 75A-2 Receiver Manual
Collins 75A-2 Receiver Manual
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COLLINS 75A-2 FRONT PANEL
COLLINS 75A-2 FRONT PANEL
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RARE COLLINS 75A-2-A FRONT DIAL ESCUTCHEON
RARE COLLINS 75A-2-A FRONT DIAL ESCUTCHEON
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Original Collins 75A-4 Amateur Receiver Instructuo
Original Collins 75A-4 Amateur Receiver Instructuo
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Collins 75A-4 NEW Dave Curry Custom Made, Rockwell
Collins 75A-4 NEW Dave Curry Custom Made, Rockwell
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Collins 75A-4 NEW Dave Curry Custom Made, Rockwell
Collins 75A-4 NEW Dave Curry Custom Made, Rockwell
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Collins 75A-4 NEW Dave Curry Custom Made, Rockwell
Collins 75A-4 NEW Dave Curry Custom Made, Rockwell
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Collins 75A-4 NEW Dave Curry Custom Made, Rockwell
Collins 75A-4 NEW Dave Curry Custom Made, Rockwell
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Current price: $224.99 (7 bids)
Collins 75A-4 Instruction Manual: 11’ X 23&r
Collins 75A-4 Instruction Manual: 11’ X 23&r
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Collins 75A-2 Instruction Manual: 11’ X 20&r
Collins 75A-2 Instruction Manual: 11’ X 20&r
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Current price: $20.95 (12 bids)
Collins 75A-3 Instruction Manual: w/11’X17&r
Collins 75A-3 Instruction Manual: w/11’X17&r
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Current price: $19.95 (0 bids)
Collins 75A-1 Instruction Manual: w/ 11’X17&
Collins 75A-1 Instruction Manual: w/ 11’X17&
Ends in 7 Days 7 Hours 23 Minutes 54 Seconds
Current price: $18.95 (11 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: $9.95 (0 bids)
Manual For Collins 75A-2 Amateur Receiver, Early
Manual For Collins 75A-2 Amateur Receiver, Early
Ends in 8 Days 15 Hours 29 Minutes 44 Seconds
Current price: $11.95 (0 bids)
COLLINS 75A-2 Receiver Tube Set
COLLINS 75A-2 Receiver Tube Set
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COLLINS 75A-3 Receiver Tube Set
COLLINS 75A-3 Receiver Tube Set
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COLLINS 75A-4 Receiver Tube Set
COLLINS 75A-4 Receiver Tube Set
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Current price: $119.97 (19 bids)
Manual For Collins 75A-4 Amateur Receiver, Early
Manual For Collins 75A-4 Amateur Receiver, Early
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Current price: $19.95 (1 bid)
Collins 75A-3 Amateur Receiver Manual HAM RADIO
Collins 75A-3 Amateur Receiver Manual HAM RADIO
Ends in 10 Days 18 Hours 22 Minutes 49 Seconds
Current price: $13.99 (10 bids)
Collins 75a-3 w/Instruction Manual! & R-448/FR
Collins 75a-3 w/Instruction Manual! & R-448/FR
Ends in 11 Days 18 Minutes 38 Seconds
Current price: $499.00 (0 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 11 Days 19 Hours 11 Minutes 26 Seconds
Current price: $16.95 (25 bids)
EXCLUSIVE CUSTOM 13 PC. BRISTOL WRENCH MASTER SET
EXCLUSIVE CUSTOM 13 PC. BRISTOL WRENCH MASTER SET
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Current price: $27.99 (51 bids)
RARE!!  COLLINS 75A-3 FRONT DIAL ESCUTCHEON Great
RARE!! COLLINS 75A-3 FRONT DIAL ESCUTCHEON Great
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Current price: $26.84 (0 bids)
MC 8/32 3/16’ KNOB SET SCREW 20PC FOR COLLIN
MC 8/32 3/16’ KNOB SET SCREW 20PC FOR COLLIN
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Current price: $8.45 (25 bids)
Collins 75A-3 NEW Capacitor Replacement Kit
Collins 75A-3 NEW Capacitor Replacement Kit
Ends in 15 Days 20 Hours 7 Minutes 15 Seconds
Current price: $69.99 (6 bids)
COLLINS 75A-2 / 75A-3/ 75A-4 receiver  front panel
COLLINS 75A-2 / 75A-3/ 75A-4 receiver front panel
Ends in 16 Days 3 Hours 36 Minutes 42 Seconds
Current price: $21.99 (10 bids)
Collins 75A-3 Amateur Receiver INSTRUCTION BOOK
Collins 75A-3 Amateur Receiver INSTRUCTION BOOK
Ends in 16 Days 3 Hours 38 Minutes 20 Seconds
Current price: $13.95 (0 bids)

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