Hammarlund SP-600

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The Hammarlund Manufacturing Company was founded by Oscar Hammarlund in New York City in 1910. The first Hammarlund plant manufactured radio components and was located on Fulton Street in lower Manhattan.. Their variable capacitor designs quickly became industry standards, and the company adopted the capacitors schematic symbol as its logo. Hammarlund formed a partnership called Hammarlund-Roberts Co. in the mid 1920specifically to offer kits for AM Broadcast radios using Hammarlund parts.

Hammarlund-Roberts went out of business in 1931 and the Hammarlund Mfg. Co., Inc. introduced of the "Comet Pro", the first commercial shortwave superheterodyne receiver. Within five years, thousands of these receivers were in use at commercial radiotelegraph and radiotelephone stations, aboard ships and by amateur radio operators the world over.

After the Comet-Pro came an improved receiver, called the Super-Pro (the SP-200 series in 1936. Hammarlund expanded with the onset of World War II, with more than 2000 people employed at 14 different plants. It has been estimated that almost 90% of American wartime military electronic equipment employed Hammarlund capacitors. At the end of World War II, surplus Super-Pro receivers at bargain prices were readily available, which may be a reason why so many of these are still survive today.

In 1947, the SP-600 Super-Pro receiver, which surpassed the SP-200 in performance, was introduced. It covered 540 kHz to 54 mHz with a 0-100 calibrated mechanical band spreadand had provisions for optional crystal control of six selected frequencies. Also produced, was a VLF version, which tuned from 10 kHz to 540 kHz. The SP-600 receiver series was popular throughout the world for military, laboratory and commercial uses.

While Hammarlund was most famous for its amateur/short-wave receiver lines such as the Super Pro series and the HQ series (which includes the HQ-100, 110, 120, 129, 145, 150, 160, 170, 180, 200 and 215) it also produced a number of amateur transmitters. In 1960 the HX-500, a 100 watt, table-top, single-sideband transmitter was introduced.This rig also had FM and FSK transmission capability, along with the later HX-50. The HXL-1 was a compact linear amplifier introduced in 1964.

The company changed ownership often. In the late 1950s Hammarlund was sold to Telechrome. Then Telechrome sold out to Giannini Scientific. In the late 60s the company was sold to the Electronic Assistance Corporation (EAC). The product line was either sold off in parts or phased out. The Cardwell Condenser Corporation purchased all remaining components, and in the early 1970s the Hammarlund factory closed. At the time of its demise, Hammarlund was among the very oldest producers of radio equipment in the United States.

More information on Hammarlund:
Wikipedia reference on Hammarlund
Ham Radio Museum - Hammarlund

Hammarlund SP-600 EBay Bargains!

HAMMARLUND  SP-600  TUBE  KIT
HAMMARLUND SP-600 TUBE KIT
Ends in 1 Days 5 Hours 42 Minutes 25 Seconds
Current price: $129.00 (51 bids)
Hammarlund SP-600-JX (issue 1) manual »R²
Hammarlund SP-600-JX (issue 1) manual »R²
Ends in 1 Days 6 Hours 33 Minutes 31 Seconds
Current price: $12.95 (0 bids)
Hammarlund SP-600-JX-17: USAF AN 16-45-434 manual
Hammarlund SP-600-JX-17: USAF AN 16-45-434 manual
Ends in 1 Days 6 Hours 33 Minutes 33 Seconds
Current price: $16.95 (0 bids)
Hammarlund SP-600-JX-17: USAF AN 16-45-436 manual
Hammarlund SP-600-JX-17: USAF AN 16-45-436 manual
Ends in 1 Days 6 Hours 33 Minutes 36 Seconds
Current price: $13.95 (0 bids)
Hammarlund SP-600-JX/-J (issue 3) manual »R²
Hammarlund SP-600-JX/-J (issue 3) manual »R²
Ends in 1 Days 6 Hours 33 Minutes 38 Seconds
Current price: $12.95 (0 bids)
Hammarlund SP-600-JX/-J (issue 4) manual »R²
Hammarlund SP-600-JX/-J (issue 4) manual »R²
Ends in 1 Days 6 Hours 33 Minutes 41 Seconds
Current price: $12.95 (0 bids)
Hammarlund SP-600-JX/-J (issue 5) manual »R²
Hammarlund SP-600-JX/-J (issue 5) manual »R²
Ends in 1 Days 6 Hours 33 Minutes 44 Seconds
Current price: $12.95 (0 bids)
Hammarlund SP-600-JX/-J (issue 6) manual »R²
Hammarlund SP-600-JX/-J (issue 6) manual »R²
Ends in 1 Days 6 Hours 33 Minutes 46 Seconds
Current price: $12.95 (0 bids)
Hammarlund SP-600-JX/-J (issue 7) manual »R²
Hammarlund SP-600-JX/-J (issue 7) manual »R²
Ends in 1 Days 6 Hours 33 Minutes 49 Seconds
Current price: $12.95 (0 bids)
Hammarlund SP-600-JX17 (issue 2) manual »R²
Hammarlund SP-600-JX17 (issue 2) manual »R²
Ends in 1 Days 6 Hours 33 Minutes 51 Seconds
Current price: $12.95 (0 bids)
Hammarlund SP-600: Air Force manual: AN 16-45-221
Hammarlund SP-600: Air Force manual: AN 16-45-221
Ends in 1 Days 6 Hours 33 Minutes 53 Seconds
Current price: $11.95 (0 bids)
Hammarlund SP-600: Air Force manual: AN 16-45-222
Hammarlund SP-600: Air Force manual: AN 16-45-222
Ends in 1 Days 6 Hours 33 Minutes 56 Seconds
Current price: $12.95 (0 bids)
Hammarlund SP-600: Air Force manual: AN 16-45-223
Hammarlund SP-600: Air Force manual: AN 16-45-223
Ends in 1 Days 6 Hours 33 Minutes 58 Seconds
Current price: $11.95 (0 bids)
Hammarlund SP-600: Air Force manual: T.O.16-45-224
Hammarlund SP-600: Air Force manual: T.O.16-45-224
Ends in 1 Days 6 Hours 34 Minutes 1 Seconds
Current price: $12.95 (0 bids)
Hammarlund SP-600: Army manual: TM 11-851 w/6 48&r
Hammarlund SP-600: Army manual: TM 11-851 w/6 48&r
Ends in 1 Days 6 Hours 34 Minutes 4 Seconds
Current price: $39.95 (0 bids)
Hammarlund SP-600: set of 3 Air Force  manuals »R
Hammarlund SP-600: set of 3 Air Force manuals »R
Ends in 1 Days 6 Hours 34 Minutes 6 Seconds
Current price: $19.95 (0 bids)
Hammarlund SP-600: set of 4 Air Force  manuals »R
Hammarlund SP-600: set of 4 Air Force manuals »R
Ends in 1 Days 6 Hours 34 Minutes 9 Seconds
Current price: $25.95 (0 bids)
HAMMARLUND SP-600  JX-14 HAM COMMUNICATIONS RECEIV
HAMMARLUND SP-600 JX-14 HAM COMMUNICATIONS RECEIV
Ends in 1 Days 20 Hours 50 Minutes 49 Seconds
Current price: $389.99 (0 bids)
Three Manual Set  Hammarlund SP-600 Series Radios
Three Manual Set Hammarlund SP-600 Series Radios
Ends in 4 Days 55 Minutes 17 Seconds
Current price: $14.95 (0 bids)
NEW UG-103/U AMPHENOL TWINAX CONNECTOR for HAMMARL
NEW UG-103/U AMPHENOL TWINAX CONNECTOR for HAMMARL
Ends in 4 Days 1 Hours 7 Minutes 39 Seconds
Current price: $5.00 (0 bids)
HAMMARLUND SP-600-VLF31 SP-600 VLF Receiver Manual
HAMMARLUND SP-600-VLF31 SP-600 VLF Receiver Manual
Ends in 4 Days 19 Hours 57 Minutes 15 Seconds
Current price: $11.99 (3 bids)
Hammarlund sp-600 J-3 Transformers & Capacitor
Hammarlund sp-600 J-3 Transformers & Capacitor
Ends in 6 Days 19 Hours 22 Minutes 24 Seconds
Current price: $77.18 (0 bids)
FILTER CHOKE HAMMARLUND SP-600 JX-16 HAM VINTAGE R
FILTER CHOKE HAMMARLUND SP-600 JX-16 HAM VINTAGE R
Ends in 7 Days 4 Hours 52 Minutes 10 Seconds
Current price: $119.00 (0 bids)
For parts TRANSFORMER HAMMARLUND SP-600 JX-16 HAM
For parts TRANSFORMER HAMMARLUND SP-600 JX-16 HAM
Ends in 7 Days 4 Hours 52 Minutes 31 Seconds
Current price: $119.00 (0 bids)
COMPONENT BLILEY CRYSTAL VX4 HAMMARLUND SP-600 VIN
COMPONENT BLILEY CRYSTAL VX4 HAMMARLUND SP-600 VIN
Ends in 7 Days 4 Hours 54 Minutes 15 Seconds
Current price: $79.00 (0 bids)
COMPONENT  HAMMARLUND SP-600 VINTAGE RADIO #E4-06
COMPONENT HAMMARLUND SP-600 VINTAGE RADIO #E4-06
Ends in 7 Days 4 Hours 55 Minutes 34 Seconds
Current price: $59.00 (0 bids)
 DIAL POINTS HAMMARLUND SP-600 JX-16 HAM VINTAGE R
DIAL POINTS HAMMARLUND SP-600 JX-16 HAM VINTAGE R
Ends in 8 Days 4 Hours 56 Minutes 18 Seconds
Current price: $39.00 (0 bids)
For parts TRU-OHMS RESISTORS HAMMARLUND SP-600 JX-
For parts TRU-OHMS RESISTORS HAMMARLUND SP-600 JX-
Ends in 8 Days 4 Hours 56 Minutes 20 Seconds
Current price: $39.00 (0 bids)
Hammarlund SP-600 JX-6 Super Pro Ham Receiver for
Hammarlund SP-600 JX-6 Super Pro Ham Receiver for
Ends in 8 Days 20 Hours 44 Minutes 51 Seconds
Current price: $495.00 (0 bids)
 Vintage Hammarlund SP-600 HAM Receiver front  LED
Vintage Hammarlund SP-600 HAM Receiver front LED
Ends in 9 Days 4 Hours 20 Minutes 5 Seconds
Current price: $20.95 (0 bids)
Hammarlund SP-600 Overhaul Manual Reprint
Hammarlund SP-600 Overhaul Manual Reprint
Ends in 13 Days 17 Hours 16 Minutes 18 Seconds
Current price: $9.95 (0 bids)
Hammarlund SP-600 Service Manual Reprint
Hammarlund SP-600 Service Manual Reprint
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Current price: $9.95 (0 bids)
Hammarlund SP-600 Parts Manual Reprint
Hammarlund SP-600 Parts Manual Reprint
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Current price: $9.95 (0 bids)
Hammarlund SP-600 Operation Manual Reprint
Hammarlund SP-600 Operation Manual Reprint
Ends in 13 Days 17 Hours 18 Minutes 18 Seconds
Current price: $9.95 (0 bids)
Four Manual Set  Hammarlund SP-600 Series Radios
Four Manual Set Hammarlund SP-600 Series Radios
Ends in 15 Days 4 Hours 56 Minutes 7 Seconds
Current price: $21.95 (0 bids)
SIGNAL CORPS RADIO RECEIVER R-274A/FRR HAMMARLUND
SIGNAL CORPS RADIO RECEIVER R-274A/FRR HAMMARLUND
Ends in 17 Days 17 Hours 12 Minutes 33 Seconds
Current price: $381.65 (0 bids)
LOT 19 VACUUM TUBES LAMPS HAMMARLUND SP-600 VINTAG
LOT 19 VACUUM TUBES LAMPS HAMMARLUND SP-600 VINTAG
Ends in 19 Days 16 Hours 8 Minutes 27 Seconds
Current price: $319.00 (0 bids)
Hammarlund sp-600 jx-17
Hammarlund sp-600 jx-17
Ends in 20 Days 4 Hours 8 Minutes 27 Seconds
Current price: $650.00 (0 bids)
HAMMARLUND SP 600-J X-17, AN 16-45-434/31R2-4-18-2
HAMMARLUND SP 600-J X-17, AN 16-45-434/31R2-4-18-2
Ends in 20 Days 21 Hours 42 Minutes 13 Seconds
Current price: $19.95 (6 bids)
Hammarlund SP600 XJ-17 UTC SE Opt Transformer
Hammarlund SP600 XJ-17 UTC SE Opt Transformer
Ends in 21 Days 2 Hours 13 Minutes 47 Seconds
Current price: $79.00 (0 bids)

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