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6T9 Complete
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Carl WA1KPD
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2
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16394
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June 05, 2008, 07:25:31 PM
by K1ZJH
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A Dual Band Ten Watt CW/AM Transmitter
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Steve - K4HX
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0
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16061
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March 10, 2018, 04:01:43 PM
by Steve - K4HX
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Possible 10% increase in efficiency in class C tube output stage (easy)
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IN3IEX
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9
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15197
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December 17, 2011, 12:40:43 PM
by W2PFY
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Heathkit Parts
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WA1HZK
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0
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14489
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January 09, 2010, 10:14:57 AM
by WA1HZK
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CCS, ICAS, IMS, and IVS ratings
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Opcom
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1
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13639
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July 17, 2015, 06:02:23 PM
by Opcom
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Early Homebrew transmitters
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W4RON
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4
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13291
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August 18, 2008, 10:08:49 PM
by Carl WA1KPD
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HT-40 Modification and Upgrades
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Steve - K4HX
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1
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12929
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December 31, 2016, 09:25:47 PM
by DMOD
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Hammarlund PA-500 RF Deck Info
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Steve W8TOW
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3
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12760
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May 25, 2016, 06:30:32 PM
by DMOD
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DX-40 Circuit Improvements
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DMOD
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0
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12735
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July 14, 2017, 02:10:40 PM
by DMOD
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Henry 2K-4 Power Supply Upgrade and Filament Fix
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DMOD
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2
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12547
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September 02, 2014, 08:52:13 PM
by DMOD
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Hi-Fi Audio and modulator mod for the Heathkit DX-60 / Dx-40
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n1uvi
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0
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12062
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February 12, 2012, 12:54:20 PM
by n1uvi
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Making a VFO to Transmitter Matching Transformer
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AE2EA
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0
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11466
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July 16, 2021, 08:19:18 AM
by AE2EA
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Viking I as a Class C & Class B driver
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Steve W8TOW
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4
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11343
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October 05, 2012, 12:17:26 PM
by W2VW
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More power, less dissipation. RCA concept in ham class C transmitters
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Steve - K4HX
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0
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10455
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June 16, 2012, 06:23:35 PM
by Steve - K4HX
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EHAM article....LDMOS transistors
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RolandSWL
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0
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10300
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September 08, 2015, 08:56:06 AM
by RolandSWL
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Output optimizing the BC-610E for 50 ohms
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Steve W8TOW
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5
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10022
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September 18, 2012, 07:54:49 PM
by Steve W8TOW
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833's X 833's
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WA1HZK
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0
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9924
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September 09, 2008, 08:33:59 PM
by WA1HZK
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Controlled carrier and audio mod for the Heathkit DX-40
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n1uvi
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0
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9715
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January 26, 2012, 02:54:35 PM
by n1uvi
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Heathkit DX60 overmodulation prevention mod
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K4TLJ
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0
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9631
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February 04, 2009, 07:50:38 PM
by K4TLJ
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WA1HLR "LITE audio mods" for the Ranger, 2022
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W1GFH
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2
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9571
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May 24, 2023, 09:28:59 AM
by W1GFH
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Collins 32V AC Wiring Danger
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Steve - K4HX
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2
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9560
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December 22, 2012, 03:47:04 PM
by KB2WIG
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T-368 blower noise reduction
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W9RAN
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3
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9389
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June 19, 2023, 05:38:16 PM
by W3SLK
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DX-60 Mods from WA7JHZ
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Steve - K4HX
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2
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8773
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October 22, 2015, 03:49:22 PM
by N2DTS
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HB TX from OE3WHB
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Steve - K4HX
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3
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8575
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July 13, 2015, 03:20:03 AM
by W7TFO
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80 Watt Class D Transmitter by WA7JHZ
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Steve - K4HX
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0
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8146
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September 06, 2015, 10:55:10 PM
by Steve - K4HX
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