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Heising Modulation Article from April 1961
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WA4WAX
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0
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11305
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December 24, 2015, 04:13:22 PM
by WA4WAX
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PDF: Instruction Book (manual) Model 150-B. Meissner Manufacturing Co.
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K5UJ
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0
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11399
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March 05, 2011, 12:01:13 PM
by K5UJ
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Complete clean scan of paper by A. Doty Jr. on buried radials v. elevated
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K5UJ
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5
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11431
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July 02, 2009, 04:15:53 PM
by K5UJ
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Hallicrafters HT-20 operating manual pdf
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K5UJ
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2
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11549
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January 12, 2011, 07:15:35 AM
by K5UJ
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CDE HAM-M (series 1, 2, 3, 4, 5) antenna rotators manual posted online
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Opcom
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0
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11650
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April 25, 2010, 11:51:35 PM
by Opcom
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Antique Wireless Association Old Timers Bulletin (AWA OTB)
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Todd, KA1KAQ
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4
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11676
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August 30, 2007, 01:22:32 PM
by Todd, KA1KAQ
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Old Radio Manuals & Schematics
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WA1HZK
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2
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11976
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April 21, 2006, 06:31:10 AM
by ka6vec
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Heathkit TT-1A Excel Roll Chart
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W1NB
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2
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12547
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December 18, 2019, 11:18:11 AM
by W1NB
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Reprinting NAVSHIPS 0967-LP-063-2010 April 1970 R-390A manual
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W1RC
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0
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12656
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December 13, 2007, 08:14:44 AM
by W1RC
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Download: Complete Thordarson Catalog 400CX 1939
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K5UJ
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4
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12830
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July 25, 2009, 09:14:57 AM
by K5UJ
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potter&brumfield relay specs (21 files), oscilloscope manuals (4) posted
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Opcom
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0
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12976
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May 27, 2017, 12:46:35 AM
by Opcom
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Old Hammarlund and EF Johnson Catalogs
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w5kcm
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3
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13125
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September 13, 2007, 09:59:52 PM
by w5kcm
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Thordarson Driver Transformer Wiring Sheet
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kc2we
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0
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13190
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June 08, 2020, 09:54:35 PM
by kc2we
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Communications Receivers
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Steve - WB3HUZ
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3
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13372
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October 14, 2007, 12:49:08 PM
by WA1GFZ
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Hammarlund Short Wave Manual 1938
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Detroit47
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6
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13559
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August 22, 2010, 12:29:57 AM
by Steve - WB3HUZ
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Smith Chart paper on line
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K5UJ
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6
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13876
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June 18, 2012, 08:05:42 AM
by IN3IEX
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Repair of early shortwave receivers
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WA2SQQ
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0
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13966
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January 25, 2016, 02:30:45 PM
by WA2SQQ
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Finding interesting old radio books.
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w5kcm
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0
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14122
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April 19, 2008, 08:14:39 AM
by w5kcm
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Variations in paper quality of old publications.
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k4kyv
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7
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14314
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September 22, 2007, 08:03:44 PM
by Pete, WA2CWA
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Clarostat L - T Pad data sheet
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kc2we
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1
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14445
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September 27, 2021, 09:01:28 PM
by Opcom
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Reflections I and II - Walter Maxwell W2DU
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W1UJR
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2
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15000
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September 01, 2007, 12:14:43 PM
by Bacon, WA3WDR
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Old Kenyon catalogs from 1935 and 1936
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Opcom
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5
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15053
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August 26, 2012, 03:30:05 PM
by Opcom
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Another free ham gear manual site.
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W7TFO
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1
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15498
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August 08, 2015, 03:25:09 PM
by Opcom
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CQ Magazine Archives
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vincent
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6
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15768
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May 15, 2012, 03:02:58 AM
by vincent
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Treasure Trove of WW-II MIL Radio Schematics and Conversion Data
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W1RC
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0
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16162
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March 06, 2014, 08:57:56 AM
by W1RC
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