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How to Use This Section - Read Before Posting Steve - K4HX 0 9556 Last post January 17, 2011, 02:04:00 PM
by Steve - K4HX
"Applications of Visual-Indicator Type Tubes" 15 pages on the 'new' Eye Tube Opcom 0 1970 Last post July 28, 2021, 11:07:08 PM
by Opcom
19 new manuals uploaded Opcom 4 18189 Last post December 14, 2017, 09:40:55 AM
by Opcom
1956 Crystal Design Handbook on Web Tom WA3KLR 2 10357 Last post December 09, 2014, 09:17:24 PM
by Tom WA3KLR
50 Years of Amateur Radio Innovation Pete, WA2CWA 5 16774 Last post December 28, 2008, 03:47:09 PM
by ka3zlr
50's Eimac data posted Opcom 0 4614 Last post February 18, 2010, 12:42:40 AM
by Opcom
73 Magazine - on line and fully searchable! WA2SQQ 0 5140 Last post December 22, 2015, 08:58:59 AM
by WA2SQQ
A neat book/CD collection for we hamburgers K1DEU 1 19937 Last post April 25, 2011, 09:06:45 PM
by Opcom
all the radio shack catalogs on line back to '39 Opcom 0 5939 Last post February 06, 2011, 11:08:10 AM
by Opcom
Amateur Radio Archive vincent 0 18261 Last post March 05, 2012, 03:15:19 AM
by vincent
American Radio History web site WA2SQQ 0 4146 Last post January 19, 2012, 07:59:38 PM
by WA2SQQ
American Radio History web site WA2SQQ 0 3718 Last post January 07, 2015, 08:31:29 AM
by WA2SQQ
another book of amplifier schematics online Opcom 0 5484 Last post December 04, 2008, 09:10:26 PM
by Opcom
Another free ham gear manual site. W7TFO 1 15470 Last post August 08, 2015, 03:25:09 PM
by Opcom
Antique Wireless Association Old Timers Bulletin (AWA OTB) Todd, KA1KAQ 4 11646 Last post August 30, 2007, 01:22:32 PM
by Todd, KA1KAQ
B&W Buttefly Cap Data Steve - K4HX 0 3863 Last post January 29, 2014, 11:47:56 AM
by Steve - K4HX
B&W Coil Data Steve - K4HX 0 7668 Last post January 29, 2014, 11:52:04 AM
by Steve - K4HX
Broadcast Equpment documents, and more W9RAN 3 8523 Last post February 04, 2009, 08:12:58 PM
by Opcom
bunch of books on scopes and some small test gear you can make. Opcom 0 7178 Last post January 10, 2019, 04:33:21 PM
by Opcom
CDE HAM-M (series 1, 2, 3, 4, 5) antenna rotators manual posted online Opcom 0 11629 Last post April 25, 2010, 11:51:35 PM
by Opcom
Clarostat L - T Pad data sheet kc2we 1 14391 Last post September 27, 2021, 09:01:28 PM
by Opcom
Class B Audio and RF Amps 1936 Loy Barton RCA paper John K5PRO 5 19466 Last post January 31, 2017, 12:50:43 PM
by K4TQF
Collins 75A-3 Instruction Book (manual) pdf for download K5UJ 0 6406 Last post June 23, 2009, 11:54:41 AM
by K5UJ
Communications Receivers Steve - WB3HUZ 3 13342 Last post October 14, 2007, 12:49:08 PM
by WA1GFZ
Complete clean scan of paper by A. Doty Jr. on buried radials v. elevated K5UJ 5 11389 Last post July 02, 2009, 04:15:53 PM
by K5UJ
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