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April 19, 2024, 09:18:51 AM
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Siting Criteria for HF Communications Centers, NBS Tech Note 139
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Steve - K4HX
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4103
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December 21, 2015, 12:02:06 AM
by Steve - K4HX
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73 Magazine - on line and fully searchable!
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WA2SQQ
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0
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5140
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December 22, 2015, 08:58:59 AM
by WA2SQQ
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Heising Modulation Article from April 1961
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WA4WAX
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11280
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December 24, 2015, 04:13:22 PM
by WA4WAX
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Triplett VU Meters Data Sheet
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kc2we
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23138
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July 14, 2022, 10:05:53 AM
by kc2we
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Collins 75A-3 Instruction Book (manual) pdf for download
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K5UJ
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0
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6406
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June 23, 2009, 11:54:41 AM
by K5UJ
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Radio Tubes Vade-Mecum P.H. Brans
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Todd, KA1KAQ
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6068
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August 30, 2007, 11:13:34 AM
by Todd, KA1KAQ
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ETO Alpha 274 and Alpha 374 manual online
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Opcom
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0
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6488
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April 25, 2010, 11:48:35 PM
by Opcom
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Heathkit Marauder manual for download,,
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K7NCR
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10168
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April 09, 2009, 11:44:03 AM
by K7NCR
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free Hallicrafters HT-9 manual online
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Opcom
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0
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6744
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April 04, 2010, 08:16:43 AM
by Opcom
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PDF Johnson Viking Ranger operating manual download (Ranger 1)
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K5UJ
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19860
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April 02, 2010, 10:20:05 PM
by K5UJ
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K9YA Telegraph
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N9BOR
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5856
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October 07, 2007, 12:16:12 PM
by N9BOR
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free test gear manauls
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Opcom
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0
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4151
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February 27, 2010, 11:38:36 PM
by Opcom
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50's Eimac data posted
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Opcom
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0
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4614
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February 18, 2010, 12:42:40 AM
by Opcom
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Reprinting NAVSHIPS 0967-LP-063-2010 April 1970 R-390A manual
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W1RC
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12638
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December 13, 2007, 08:14:44 AM
by W1RC
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WRL 755 Manual
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K5UJ
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9915
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October 28, 2009, 12:04:14 PM
by K5UJ
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Finding interesting old radio books.
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w5kcm
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14104
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April 19, 2008, 08:14:39 AM
by w5kcm
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New books and manuals and articles online
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Opcom
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0
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4972
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December 02, 2008, 08:32:11 PM
by Opcom
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HEATHKIT DOWNLOADS
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W2PFY
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5281
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July 24, 2009, 01:00:35 PM
by W2PFY
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Download: Jefferson Transformers and Chokes Catalog 391-R, 1939
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K5UJ
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0
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5137
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July 21, 2009, 06:37:21 PM
by K5UJ
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another book of amplifier schematics online
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Opcom
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0
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5483
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December 04, 2008, 09:10:26 PM
by Opcom
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The Science of Radio / Paul J. Hahin
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K5UJ
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6111
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May 29, 2009, 07:44:48 PM
by K5UJ
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Heinz & Kaufman datasheet on H&K 257B (early 4E27)
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N3DRB The Derb
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7479
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June 26, 2009, 05:57:48 PM
by N3DRB The Derb
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RADAR, Lincoln Laboratory's Widgets and Wonders
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WA1HZK
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5634
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March 22, 2010, 04:28:23 PM
by WA1HZK
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Rutherford B7B Pulse Generator Manual online Rutherford / CMC c. 1967
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Opcom
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7864
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May 16, 2010, 09:43:04 PM
by Opcom
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Servicing TV Horizontal and Vertical Output Systems - Fix Granddad's TV set.
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Opcom
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4845
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July 05, 2010, 12:06:24 AM
by Opcom
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Topic you have posted in
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AMfone - Dedicated to Amplitude Modulation on the Amateur Radio Bands
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