Collins KWM-2

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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 KWM-2 EBay Bargains!

COMPLETE  TUBE  KIT  FOR  COLLINS  KWM-2
COMPLETE TUBE KIT FOR COLLINS KWM-2
Ends in 7 Hours 29 Minutes 40 Seconds
Current price: $139.00 (316 bids)
11 PIN CHASSIS MOUNTED CONNECTOR FOR COLLINS KWM-2
11 PIN CHASSIS MOUNTED CONNECTOR FOR COLLINS KWM-2
Ends in 2 Days 12 Hours 52 Minutes 20 Seconds
Current price: $19.99 (27 bids)
Collins KWM-2/KWM-2A Instruction manual: w/11&rsqu
Collins KWM-2/KWM-2A Instruction manual: w/11&rsqu
Ends in 2 Days 15 Hours 39 Minutes 32 Seconds
Current price: $29.95 (18 bids)
COLLINS KWM-2 KWM-2A S-LINE HF SSB Original AF Con
COLLINS KWM-2 KWM-2A S-LINE HF SSB Original AF Con
Ends in 3 Days 4 Hours 10 Minutes 52 Seconds
Current price: $25.99 (0 bids)
  TUBE  KIT  FOR  COLLINS  KWM-2  LESS FINALS (2-6
TUBE KIT FOR COLLINS KWM-2 LESS FINALS (2-6
Ends in 3 Days 5 Hours 13 Minutes 13 Seconds
Current price: $99.00 (61 bids)
Collins KWM-2 Transceiver with Winged Emblem.  Est
Collins KWM-2 Transceiver with Winged Emblem. Est
Ends in 3 Days 10 Hours 5 Minutes 16 Seconds
Current price: $499.00 (0 bids)
COLLINS KWM-2 Transceiver - VERY GOOD CONDITION -
COLLINS KWM-2 Transceiver - VERY GOOD CONDITION -
Ends in 3 Days 10 Hours 38 Minutes 1 Seconds
Current price: $219.50 (5 bids)
 Antenna Tuner in  A Collins KWM-2, 32S, 75S Cabin
Antenna Tuner in A Collins KWM-2, 32S, 75S Cabin
Ends in 3 Days 13 Hours 19 Minutes 37 Seconds
Current price: $125.00 (1 bid)
Collins KWM2 Power Supply
Collins KWM2 Power Supply
Ends in 4 Days 3 Hours 32 Minutes 43 Seconds
Current price: $500.00 (0 bids)
COLLINS KWM-2 /2a Transceiver front panel light LE
COLLINS KWM-2 /2a Transceiver front panel light LE
Ends in 4 Days 6 Hours 44 Minutes 14 Seconds
Current price: $15.99 (0 bids)
Collins KWM-2 Service Bulletins Set Of Ten
Collins KWM-2 Service Bulletins Set Of Ten
Ends in 4 Days 12 Hours 44 Minutes 50 Seconds
Current price: $14.95 (0 bids)
COLLINS KWM-2 ’WINGED’ TRANSCEIVER WIT
COLLINS KWM-2 ’WINGED’ TRANSCEIVER WIT
Ends in 5 Days 5 Hours 39 Minutes 7 Seconds
Current price: $1,300.00 (0 bids)
Collins KWM-2A Band Switch Escutcheon Bezel Ham Ra
Collins KWM-2A Band Switch Escutcheon Bezel Ham Ra
Ends in 5 Days 14 Hours 3 Minutes 52 Seconds
Current price: $39.99 (0 bids)
1962 Collins KWM-2 & KWM-2A Transceivers Instr
1962 Collins KWM-2 & KWM-2A Transceivers Instr
Ends in 10 Days 8 Hours 36 Minutes 14 Seconds
Current price: $37.95 (0 bids)
Collins KWM-2 Transceiver with Winged Emblem.
Collins KWM-2 Transceiver with Winged Emblem.
Ends in 12 Days 11 Hours 23 Minutes 50 Seconds
Current price: $650.00 (0 bids)
BUDWIG TF6T-T 8PC COLLINS KWM2 S-LINE RADIO BLACK
BUDWIG TF6T-T 8PC COLLINS KWM2 S-LINE RADIO BLACK
Ends in 14 Days 11 Hours 42 Minutes 22 Seconds
Current price: $9.95 (119 bids)
COLLINS KWM-2 KWM-2A OPERATING & SERVICE MANUA
COLLINS KWM-2 KWM-2A OPERATING & SERVICE MANUA
Ends in 14 Days 12 Hours 42 Minutes 36 Seconds
Current price: $11.95 (28 bids)
6AZ8 Vacuum Tube New Mil Philips/ECG for Collins K
6AZ8 Vacuum Tube New Mil Philips/ECG for Collins K
Ends in 17 Days 3 Hours 9 Minutes 19 Seconds
Current price: $4.19 (911 bids)
COLLINS KWM-2 KWM-2A S-LINE HF SSB Diode 1N1490 Co
COLLINS KWM-2 KWM-2A S-LINE HF SSB Diode 1N1490 Co
Ends in 17 Days 15 Hours 22 Minutes 2 Seconds
Current price: $33.00 (1 bid)
Collins KWM-2, KWM-2A Instruction Manual on 32LB P
Collins KWM-2, KWM-2A Instruction Manual on 32LB P
Ends in 17 Days 18 Hours 9 Minutes 57 Seconds
Current price: $27.45 (12 bids)
LOADING CAPACITOR for COLLINS KWM-2A TRANSCEIVER
LOADING CAPACITOR for COLLINS KWM-2A TRANSCEIVER
Ends in 18 Days 23 Minutes 36 Seconds
Current price: $29.95 (0 bids)
70K-2 PTO for COLLINS KWM-2A TRANSCEIVER TESTED WO
70K-2 PTO for COLLINS KWM-2A TRANSCEIVER TESTED WO
Ends in 18 Days 23 Minutes 36 Seconds
Current price: $149.95 (0 bids)
TUNING CAPACITOR for COLLINS KWM-2A TRANSCEIVER
TUNING CAPACITOR for COLLINS KWM-2A TRANSCEIVER
Ends in 18 Days 23 Minutes 39 Seconds
Current price: $29.95 (0 bids)
COLLINS KWM-2 KWM-2A S-LINE HF SSB RF CAGE 800VDC
COLLINS KWM-2 KWM-2A S-LINE HF SSB RF CAGE 800VDC
Ends in 19 Days 2 Hours 53 Minutes 1 Seconds
Current price: $29.99 (0 bids)
COLLINS KWM-2 KWM-2A 32S-3 S-LINE Parts PA LOAD Sh
COLLINS KWM-2 KWM-2A 32S-3 S-LINE Parts PA LOAD Sh
Ends in 19 Days 2 Hours 56 Minutes 7 Seconds
Current price: $33.00 (0 bids)
Super Manual: Collins KWM-2 & KWM-2A Tranceive
Super Manual: Collins KWM-2 & KWM-2A Tranceive
Ends in 20 Days 1 Hours 7 Minutes 43 Seconds
Current price: $24.95 (42 bids)
Collins KWM-2 Mic Gain Control with switch 376 740
Collins KWM-2 Mic Gain Control with switch 376 740
Ends in 20 Days 14 Hours 40 Minutes 57 Seconds
Current price: $30.00 (0 bids)
Collins KWM-2 Exciter Tuning Star Knob
Collins KWM-2 Exciter Tuning Star Knob
Ends in 21 Days 15 Hours 13 Minutes 48 Seconds
Current price: $19.00 (0 bids)
11 PIN CHASSIS MOUNTED CONNECTOR FOR COLLINS KWM-2
11 PIN CHASSIS MOUNTED CONNECTOR FOR COLLINS KWM-2
Ends in 22 Days 23 Hours 40 Minutes 10 Seconds
Current price: $19.99 (23 bids)
COLLINS  KWM-2 Complete Primo Tube Set 6146/A (2)+
COLLINS KWM-2 Complete Primo Tube Set 6146/A (2)+
Ends in 24 Days 6 Hours 54 Minutes 29 Seconds
Current price: $139.97 (28 bids)
Collins KWM-2 Ham Radio Transceiver Winged Emblem
Collins KWM-2 Ham Radio Transceiver Winged Emblem
Ends in 24 Days 10 Hours 56 Minutes 30 Seconds
Current price: $585.00 (0 bids)
Collins KWM-2, KWM-2A Transceivers  Instruction Ma
Collins KWM-2, KWM-2A Transceivers Instruction Ma
Ends in 27 Days 12 Hours 42 Minutes 7 Seconds
Current price: $12.00 (1 bid)
Collins Kwm-2a 70k-2 PTO Working MCN# 5131
Collins Kwm-2a 70k-2 PTO Working MCN# 5131
Ends in 27 Days 13 Hours 18 Minutes 14 Seconds
Current price: $87.00 (0 bids)
Collins KWM-2 & Collins hand mic, 312B-4 ,  51
Collins KWM-2 & Collins hand mic, 312B-4 , 51
Ends in 28 Days 6 Hours 26 Minutes 37 Seconds
Current price: $1,150.00 (0 bids)

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