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40M dipole
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KI4YAN
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25
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14099
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November 13, 2007, 03:06:53 PM
by WA1GFZ
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MOS or IGBT class H modulators for tube AM transmitters.
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IN3IEX
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14
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14120
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January 13, 2012, 12:28:26 PM
by steve_qix
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downward modulation in plate modulated rig
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NR5P
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24
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14137
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July 09, 2010, 11:35:14 PM
by KC2YOI
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NC-303 revitalization
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k7mdo
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29
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14144
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October 15, 2016, 11:38:42 AM
by KD6VXI
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Checking Spurious emissions without a SA
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kb3nqd
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25
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14156
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September 08, 2007, 02:43:54 PM
by WQ9E
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viking invader 2000 increasing screen voltage mod
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AC0FA
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23
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14163
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December 20, 2010, 09:05:24 AM
by The Slab Bacon
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Balanced line > Drake MN-2000 tuna ( condensed version )
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KC2YOI
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7
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14169
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July 14, 2010, 06:47:01 PM
by KC2YOI
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Waveforms for my single FET 40 meter CW rig
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ka1tdq
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25
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14170
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May 20, 2015, 01:56:43 PM
by ka1tdq
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Transmitter Cabinet layout?
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KI4YAN
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25
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14172
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December 01, 2017, 09:43:55 PM
by N0WEK
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Modulator with Class B Triodes or Class AB2 Beam Power Tube
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rsumperl
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21
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14177
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February 08, 2010, 11:51:29 AM
by WA1HZK
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RF Amp Meter system for open wire lines
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aa5wg
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16
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14184
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July 11, 2011, 08:25:36 PM
by aa5wg
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Johnson Viking II Audio Mod
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w5hro
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13
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14184
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August 14, 2008, 10:19:55 PM
by Steve - WB3HUZ
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Perhaps a homebrew AM rig in the future
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kc4umo
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26
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14185
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August 26, 2014, 03:23:07 AM
by Pete, WA2CWA
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SLOPER MOP Radio
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flintstone mop
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14
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14185
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December 05, 2005, 01:07:05 PM
by flintstone mop
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Silver Plating Copper Tubing
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aa5wg
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19
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14194
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August 16, 2011, 03:21:48 PM
by aafradio
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Johnson ranger 2 el34 idle current
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kc2etm
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29
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14220
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January 20, 2014, 09:44:50 AM
by W3GMS
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Balanced A.C. Power Mains
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k4kyv
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25
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14226
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December 18, 2008, 04:16:22 PM
by WA1GFZ
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5R4GY solid state replacements...
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W3MMR
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39
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14228
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June 22, 2019, 10:29:35 AM
by DMOD
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NEW HIGH VOLTAGE MICROWAVE SWITCHING POWER SUPPLY
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W2PFY
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26
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14254
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December 05, 2014, 03:24:09 PM
by WBear2GCR
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Relay Contact Arc Suppression?
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w8khk
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23
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14260
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January 11, 2009, 12:13:41 AM
by w8khk
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15 Watts - 1 Tube transmitter
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ka1tdq
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21
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14265
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October 10, 2011, 09:02:43 AM
by N0WEK
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Tube Warm up Time
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W7SOE
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26
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14270
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February 02, 2011, 12:30:04 PM
by W2VW
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Infinite Impeadence Receiver Detector with better carrier filter
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K1DEU
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9
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14271
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October 01, 2008, 07:16:16 AM
by w4bfs
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Antenna Tuner for 160
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K9ACT
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18
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14277
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September 19, 2007, 01:17:50 PM
by W8EJO
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Western Electric 416B tubes
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Opcom
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9
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14282
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May 24, 2010, 11:36:53 PM
by K5WLF
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