Collins R390A

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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 R390A EBay Bargains!

Sleeve (5) NOS / NIB 6DC6  Vacuum Tubes Collins R-
Sleeve (5) NOS / NIB 6DC6 Vacuum Tubes Collins R-
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Current price: $19.99 (0 bids)
Collins R-390A Receiver Antenna Relay 4100125009 2
Collins R-390A Receiver Antenna Relay 4100125009 2
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Current price: $19.99 (0 bids)
Collins R-390A Receiver JX Filter Sprague Y-15228
Collins R-390A Receiver JX Filter Sprague Y-15228
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Current price: $19.99 (0 bids)
Collins R-390A Parts Manual With Photos
Collins R-390A Parts Manual With Photos
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Collins R-390A RF Gain Control
Collins R-390A RF Gain Control
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Collins R-390A Radio Op & Repair Manual Reprin
Collins R-390A Radio Op & Repair Manual Reprin
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*** Veeder Rood Frequency Dial  FOR COLLINS R-390A
*** Veeder Rood Frequency Dial FOR COLLINS R-390A
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Current price: $24.50 (0 bids)
***  SET OF GEARTRAIN GEARS FOR COLLINS R-390A REC
*** SET OF GEARTRAIN GEARS FOR COLLINS R-390A REC
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*** COLLINS R-390A RECEIVER BFO
*** COLLINS R-390A RECEIVER BFO
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*** COLLINS R-390A RECEIVER ENGRAVED (ETCHED) FRON
*** COLLINS R-390A RECEIVER ENGRAVED (ETCHED) FRON
Ends in 3 Days 14 Hours 39 Minutes 48 Seconds
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* STRONG BALANCED PAIR OF TUNG SOL 26Z5W TUBES FOR
* STRONG BALANCED PAIR OF TUNG SOL 26Z5W TUBES FOR
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Collins R-390A Instruction Manual - Premium Card S
Collins R-390A Instruction Manual - Premium Card S
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Collins R-390A Receiver Basic Maintenance Manual
Collins R-390A Receiver Basic Maintenance Manual
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Large Knobs for Collins R390A Radio Receiver (2)
Large Knobs for Collins R390A Radio Receiver (2)
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Small Knobs for Collins R390A Radio Receiver (2)
Small Knobs for Collins R390A Radio Receiver (2)
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Current price: $15.00 (1 bid)
Collins R-390A  F455N-20  P/N 526-9163-000 2KC Fil
Collins R-390A F455N-20 P/N 526-9163-000 2KC Fil
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Collins R390A Unpopulated Crystal Deck Unknown Con
Collins R390A Unpopulated Crystal Deck Unknown Con
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BNC Female to C Male Ludlum UG-636A/U Coaxial conn
BNC Female to C Male Ludlum UG-636A/U Coaxial conn
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6DC6 Vacuum Tube New Philips/ECG Collins R-390A et
6DC6 Vacuum Tube New Philips/ECG Collins R-390A et
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COLLINS R390A  FRONT , REAR PANELS, SIDES, AND DEC
COLLINS R390A FRONT , REAR PANELS, SIDES, AND DEC
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COLLINS  R-390A   TUBE  KIT
COLLINS R-390A TUBE KIT
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Collins R-390A original engraved nameplate replace
Collins R-390A original engraved nameplate replace
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KINGS BNC Female to C Male Ludlum UG-636A/U RF con
KINGS BNC Female to C Male Ludlum UG-636A/U RF con
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Current price: $34.95 (1 bid)
Collins R-390A Receiver Maintenance Standards Manu
Collins R-390A Receiver Maintenance Standards Manu
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Current price: $19.95 (0 bids)
Collins R-390A Radio Repair Manual Reprint
Collins R-390A Radio Repair Manual Reprint
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Current price: $19.95 (20 bids)
Collins R-390A Receiver Operators Manual Reprint
Collins R-390A Receiver Operators Manual Reprint
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Current price: $7.95 (0 bids)
Collins R-390a/urr ham radio receiver sn 2602 elec
Collins R-390a/urr ham radio receiver sn 2602 elec
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Set of 4 Manuals for Collins R-390A Receiver  Op R
Set of 4 Manuals for Collins R-390A Receiver Op R
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Set of 3 Manuals for Collins R-390A Receiver  Oper
Set of 3 Manuals for Collins R-390A Receiver Oper
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Collins R-390A Parts Manual
Collins R-390A Parts Manual
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Incomplete Collins R-390A Audio Module For Parts R
Incomplete Collins R-390A Audio Module For Parts R
Ends in 28 Days 19 Hours 37 Minutes 30 Seconds
Current price: $20.00 (0 bids)

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