Collins S-Line

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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 S-Line EBay Bargains!

COLLINS S LINE KNOB SET SCREWS 75S-1 75S-3B, C 32S
COLLINS S LINE KNOB SET SCREWS 75S-1 75S-3B, C 32S
Ends in 54 Minutes 48 Seconds
Current price: $12.50 (8 bids)
VINTAGE COLLINS S-LINE STATION CONTROL
VINTAGE COLLINS S-LINE STATION CONTROL
Ends in 20 Hours 56 Minutes 1 Seconds
Current price: $168.50 (4 bids)
VINTAGE COLLINS S-LINE LINEAR AMPLIFIER
VINTAGE COLLINS S-LINE LINEAR AMPLIFIER
Ends in 21 Hours 11 Minutes 52 Seconds
Current price: $699.95 (0 bids)
forsale  COLLINS  S  LINE
forsale COLLINS S LINE
Ends in 1 Days 3 Hours 41 Minutes 55 Seconds
Current price: $1,700.00 (1 bid)
Collins S Line Rack Mount for 32S-3 75S-1 32S-3A 7
Collins S Line Rack Mount for 32S-3 75S-1 32S-3A 7
Ends in 1 Days 4 Hours 8 Minutes 38 Seconds
Current price: $99.00 (0 bids)
COLLINS S-Line PARTS: 4Khz AM/Wide SSB FILTER 75S-
COLLINS S-Line PARTS: 4Khz AM/Wide SSB FILTER 75S-
Ends in 2 Days 1 Hours 56 Minutes 37 Seconds
Current price: $165.00 (0 bids)
COLLINS S-Line PARTS: PRESS ON POINTER KNOB 32S-1
COLLINS S-Line PARTS: PRESS ON POINTER KNOB 32S-1
Ends in 3 Days 5 Hours 30 Minutes 45 Seconds
Current price: $40.00 (0 bids)
Collins S-Line & KWM-2  Stainless Hardware Set
Collins S-Line & KWM-2 Stainless Hardware Set
Ends in 4 Days 5 Hours 52 Minutes 33 Seconds
Current price: $7.99 (245 bids)
Collins S-Line & KWM-2 Factory Original Feet w
Collins S-Line & KWM-2 Factory Original Feet w
Ends in 4 Days 5 Hours 53 Minutes 9 Seconds
Current price: $28.99 (138 bids)
Collins S-Line & KWM-2 Factory Original Feet W
Collins S-Line & KWM-2 Factory Original Feet W
Ends in 4 Days 19 Hours 28 Minutes 30 Seconds
Current price: $5.99 (79 bids)
Collins S-Line 312B-4 Station Console-Speaker / Wa
Collins S-Line 312B-4 Station Console-Speaker / Wa
Ends in 5 Days 4 Hours 20 Minutes 18 Seconds
Current price: $109.50 (3 bids)
Triple 40 250v Electrolytic Capacitor for Collins
Triple 40 250v Electrolytic Capacitor for Collins
Ends in 5 Days 21 Hours 59 Minutes 59 Seconds
Current price: $37.95 (4 bids)
ORIGINAL COLLINS S-Line PARTS: ALUMINUM FRONT RISE
ORIGINAL COLLINS S-Line PARTS: ALUMINUM FRONT RISE
Ends in 6 Days 10 Minutes 35 Seconds
Current price: $55.00 (0 bids)
COLLINS S-Line PARTS: SET SCREW TYPE POINTER KNOB
COLLINS S-Line PARTS: SET SCREW TYPE POINTER KNOB
Ends in 6 Days 12 Minutes 4 Seconds
Current price: $40.00 (0 bids)
COLLINS S-Line PARTS: PRESS ON PRESELECTOR TUNING
COLLINS S-Line PARTS: PRESS ON PRESELECTOR TUNING
Ends in 6 Days 14 Minutes 39 Seconds
Current price: $25.00 (0 bids)
COLLINS S-Line PARTS: PRESS ON PRESELECTOR TUNING
COLLINS S-Line PARTS: PRESS ON PRESELECTOR TUNING
Ends in 6 Days 2 Hours 8 Seconds
Current price: $10.00 (0 bids)
1 NOS Collins  S-Line Transmitter Frequency Tuning
1 NOS Collins S-Line Transmitter Frequency Tuning
Ends in 7 Days 4 Hours 50 Minutes 52 Seconds
Current price: $49.00 (0 bids)
Collins S-Line, KWM-2 & Accessory Feet Set W/
Collins S-Line, KWM-2 & Accessory Feet Set W/
Ends in 7 Days 23 Hours 45 Minutes 42 Seconds
Current price: $24.99 (55 bids)
Collins  S-Line RE  Project Cabinet with Trim Ring
Collins S-Line RE Project Cabinet with Trim Ring
Ends in 11 Days 5 Hours 2 Minutes 27 Seconds
Current price: $149.99 (4 bids)
 Exact match touch-up paint for Collins S Line Fro
Exact match touch-up paint for Collins S Line Fro
Ends in 11 Days 16 Hours 16 Minutes 3 Seconds
Current price: $10.00 (0 bids)
EXCLUSIVE CUSTOM 13 PC. BRISTOL WRENCH MASTER SET
EXCLUSIVE CUSTOM 13 PC. BRISTOL WRENCH MASTER SET
Ends in 12 Days 18 Hours 43 Minutes 59 Seconds
Current price: $27.99 (136 bids)
Collins  S-Line WE Project Cabinet with Trim Ring/
Collins S-Line WE Project Cabinet with Trim Ring/
Ends in 12 Days 22 Hours 17 Minutes 24 Seconds
Current price: $149.99 (4 bids)
Collins S-Line, KWM-2 & Accessory Aluminum Tap
Collins S-Line, KWM-2 & Accessory Aluminum Tap
Ends in 13 Days 7 Hours 29 Minutes 36 Seconds
Current price: $19.99 (3 bids)
 MINI-KIT Ttouch-up paint for Collins S Line Front
MINI-KIT Ttouch-up paint for Collins S Line Front
Ends in 16 Days 22 Hours 8 Minutes 56 Seconds
Current price: $8.00 (0 bids)
Collins S-Line & KWM-2 Factory Original Feet w
Collins S-Line & KWM-2 Factory Original Feet w
Ends in 17 Days 17 Hours 15 Minutes 52 Seconds
Current price: $9.99 (216 bids)
10 PIECE BRISTOL WRENCH SET FOR COLLINS S-LINE, A-
10 PIECE BRISTOL WRENCH SET FOR COLLINS S-LINE, A-
Ends in 18 Days 6 Hours 18 Minutes 35 Seconds
Current price: $20.00 (52 bids)
TRADITIONAL COLLINS S-LINE 516F-2  POWER SUPPLY 11
TRADITIONAL COLLINS S-LINE 516F-2 POWER SUPPLY 11
Ends in 18 Days 6 Hours 22 Minutes 54 Seconds
Current price: $29.99 (33 bids)
Rare Collins S Line Rack Mount 32S-3 75S-1 32S-3A
Rare Collins S Line Rack Mount 32S-3 75S-1 32S-3A
Ends in 18 Days 9 Hours 45 Minutes 21 Seconds
Current price: $179.99 (0 bids)
Collins S-Line 3pc single cover Winged Signature S
Collins S-Line 3pc single cover Winged Signature S
Ends in 19 Days 18 Minutes 27 Seconds
Current price: $50.00 (2 bids)
NEW STYLE 11 PIN CONNECTORS FOR COLLINS S-LINE 75S
NEW STYLE 11 PIN CONNECTORS FOR COLLINS S-LINE 75S
Ends in 19 Days 5 Hours 28 Minutes 47 Seconds
Current price: $25.99 (48 bids)
NEW STYLE 11 PIN CONNECTORS FOR COLLINS S-LINE POW
NEW STYLE 11 PIN CONNECTORS FOR COLLINS S-LINE POW
Ends in 19 Days 5 Hours 28 Minutes 59 Seconds
Current price: $25.99 (13 bids)
Collins S- Line Cabinet 75S-1 75S-3 75S-3B 32S-1 3
Collins S- Line Cabinet 75S-1 75S-3 75S-3B 32S-1 3
Ends in 21 Days 18 Hours 55 Minutes 31 Seconds
Current price: $145.00 (0 bids)
SOUTHCO 82-11 1/4 TURN CABINET SCREWS FOR COLLINS
SOUTHCO 82-11 1/4 TURN CABINET SCREWS FOR COLLINS
Ends in 22 Days 1 Hours 47 Minutes 59 Seconds
Current price: $9.95 (6 bids)
SOUTHCO 82-11-32 1/4 TURN CABINET SCREWS & REC
SOUTHCO 82-11-32 1/4 TURN CABINET SCREWS & REC
Ends in 22 Days 1 Hours 57 Minutes 56 Seconds
Current price: $13.95 (32 bids)
Original Collins S Line Amateur Radio Station Log
Original Collins S Line Amateur Radio Station Log
Ends in 23 Days 1 Hours 24 Minutes 48 Seconds
Current price: $30.00 (0 bids)
TRADITIONAL COLLINS S-LINE 516F-2 11 PIN CONNECTOR
TRADITIONAL COLLINS S-LINE 516F-2 11 PIN CONNECTOR
Ends in 23 Days 6 Hours 34 Minutes 40 Seconds
Current price: $29.99 (33 bids)
TRADITIONAL COLLINS S-LINE 75S RCVR 11 PIN CONNECT
TRADITIONAL COLLINS S-LINE 75S RCVR 11 PIN CONNECT
Ends in 23 Days 6 Hours 36 Minutes 19 Seconds
Current price: $29.99 (27 bids)
TRADITIONAL COLLINS S-LINE EQUIPMENT 11 PIN CONNEC
TRADITIONAL COLLINS S-LINE EQUIPMENT 11 PIN CONNEC
Ends in 23 Days 6 Hours 36 Minutes 23 Seconds
Current price: $29.99 (20 bids)
NEW STYLE 11 PIN CONNECTORS FOR COLLINS S-LINE 32S
NEW STYLE 11 PIN CONNECTORS FOR COLLINS S-LINE 32S
Ends in 23 Days 6 Hours 36 Minutes 27 Seconds
Current price: $25.99 (52 bids)
Collins S Line, KWM-2  28.0 to 28.2 Mhz Crystal
Collins S Line, KWM-2 28.0 to 28.2 Mhz Crystal
Ends in 23 Days 16 Hours 40 Minutes 41 Seconds
Current price: $19.95 (0 bids)

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