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The Sound of the Machine The Hidden Harmonics behind THD
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WD5JKO
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58
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35629
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January 10, 2009, 10:16:51 PM
by WBear2GCR
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High Quality Push Pull 6B4 Bias-Shift Amplifier
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WD5JKO
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36
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31938
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November 19, 2009, 03:20:33 PM
by WD5JKO
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Near Miss with a Class E Rig?
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WD5JKO
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9
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5543
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May 12, 2012, 06:00:43 PM
by WA1GFZ
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Power Supply Failures
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WD5JKO
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39
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21672
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January 12, 2014, 01:23:27 PM
by W3RSW
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"What is all this neutralization stuff anyhow" + Hazeltine TRF
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WD5JKO
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0
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2596
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October 16, 2010, 09:37:06 PM
by WD5JKO
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HV Transformers(2)
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WD5JKO
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61
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31342
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April 08, 2010, 04:15:47 PM
by KM1H
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What is all this Cathode Modulation Stuff?
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WD5JKO
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19
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8729
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January 09, 2020, 02:59:27 AM
by Opcom
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Johnson 500 Power Switch/w/Key
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WD7F
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2
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2252
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August 28, 2014, 10:26:37 AM
by k7iou
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Softrock Lite on FT101EE
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WD8BIL
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0
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1544
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March 17, 2011, 11:33:17 AM
by WD8BIL
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Need Info - CT2100 Service Monitor
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WD8BIL
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0
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2686
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February 20, 2007, 09:33:36 AM
by WD8BIL
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Slab Bacon R390A lives again!
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WD8BIL
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1
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1800
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February 16, 2017, 02:14:58 PM
by WD8KDG
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MR VU: ? on your T4X mod
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WD8BIL
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4
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2739
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November 10, 2010, 10:52:05 AM
by WD8BIL
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-Thordarson- woops- I mean UTC S 62 Filament Transformer
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WD8BIL
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4
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4693
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May 16, 2008, 11:55:00 AM
by w1vtp
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W2APE - A MLA2500 with 8874s
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WD8BIL
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3
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4676
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March 18, 2005, 07:09:49 PM
by W2VW
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Wiring or Schematic for SB 220 Transformer 54-237
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WD8BIL
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2
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3388
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December 02, 2010, 03:58:33 PM
by WD8BIL
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26Z5W Rectifiers filaments gone
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WD8BIL
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2
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2550
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October 27, 2016, 04:54:31 PM
by w1vtp
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Drake T4X modification mods.
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WD8BIL
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8
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4704
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January 05, 2017, 07:22:29 PM
by KD6VXI
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Sched 40 PVC for coil form on 160M
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WD8BIL
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7
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3048
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February 07, 2020, 11:02:04 AM
by Opcom
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Triode Connected Cathode driven 807s
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WD8BIL
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25
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10217
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October 08, 2011, 10:57:13 AM
by WD5JKO
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Quad of 572Bs in GG
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WD8BIL
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26
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10803
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May 01, 2020, 04:40:16 AM
by Opcom
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K1JJ 10 meter beam endorsement
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WD8BIL
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3
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3366
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January 25, 2006, 11:48:27 AM
by K1JJ
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Filament choke
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wd8das
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7
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5964
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April 30, 2009, 11:59:05 PM
by Opcom
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AF4K Crystals
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wd8das
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0
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1304
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October 10, 2021, 12:43:09 PM
by wd8das
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1st Anniversay - the new AF4K Crystals
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wd8das
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6
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3383
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April 23, 2022, 08:22:56 AM
by wd8das
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The AF4K Crystals web store is now operational
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wd8das
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2
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2180
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June 17, 2021, 11:03:27 AM
by WD4DMZ
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