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Projects: New 20M 2x2x2 stack and 10M 12 el dipole stack - NanoVNA questions
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K1JJ
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23
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5410
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January 02, 2023, 09:18:24 PM
by K1JJ
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Tesla 300 schematic correction - 813s X 813s AM rig
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K1JJ
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0
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1626
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September 14, 2015, 09:32:10 PM
by K1JJ
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What is the proper method to set modulation transformer and reactor spark gaps?
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K1JJ
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8
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4260
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March 14, 2014, 11:25:07 PM
by K1JJ
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240V AC utility feed has harmonic distortion, poor power factor?
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K1JJ
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41
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12451
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February 14, 2021, 03:25:20 PM
by Opcom
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The 6M-160M HPSDR Transceiver Project Begins
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K1JJ
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304
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225335
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February 22, 2011, 11:42:44 AM
by WA1GFZ
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A NEW KW TUBE Transmitter AM PDM BUILD - the beginning...
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K1JJ
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61
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22797
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January 06, 2021, 12:38:37 PM
by w8khk
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Question about protecting amplifier input
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K1JJ
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12
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5951
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February 04, 2009, 09:35:40 PM
by WA1GFZ
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ESD Prevention Equipment ?
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K1JJ
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36
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13508
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January 16, 2011, 01:03:35 PM
by WA1GFZ
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Chimneys for Your 813's - only $4.95 each
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K1JJ
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32
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19803
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January 24, 2009, 12:41:16 PM
by w4bfs
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5KC Active Audio Filter for Brick Wall AM Use
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K1JJ
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37
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20376
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February 16, 2010, 12:20:41 AM
by K5UJ
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Actual Measurements of FT-1000D or 3-500Z Amplifier IMD Trash Levels
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K1JJ
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30
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26213
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December 19, 2005, 02:47:29 PM
by WA1GFZ
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How to match TWO 70 ohm dipoles to 75 ohm line? - SOLVED ! -
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K1JJ
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2
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5618
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April 28, 2005, 11:16:06 PM
by K1JJ
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A Simple Log Periodic On-Line Calculator and Sample Log - Try it!
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K1JJ
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4
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5306
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August 25, 2005, 11:26:59 AM
by WA1GFZ
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Question about building a capacitor
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K1JJ
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11
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6954
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November 04, 2006, 03:32:27 PM
by kf6pqt
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Throttling down 4X1 tube filament power in standby?
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K1JJ
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18
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10111
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May 10, 2013, 08:21:26 AM
by W2VW
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RF Spectrum analyzer for computer - recommendations?
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K1JJ
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129
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100898
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January 19, 2011, 09:37:08 PM
by K1JJ
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Question: HV Ratings for Heising cap, plate blocker, tuning and bypass?
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K1JJ
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14
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10515
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December 07, 2005, 05:09:03 PM
by WA1GFZ
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Tramline question for raising and lowering antennas
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K1JJ
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21
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6530
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June 16, 2022, 09:22:39 PM
by K1JJ
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75M Local Dipole Optimization - real whirl tests
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K1JJ
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11
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8656
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May 06, 2013, 09:37:15 PM
by K5IIA
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DBX 263A De-esser - Any opinions or tips on performance?
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K1JJ
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24
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17031
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March 15, 2013, 10:24:04 PM
by N2DTS
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Questions on mod transformer ratio and Heising reactors
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K1JJ
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9
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7040
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November 13, 2005, 05:07:28 PM
by W2VW
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Best Antenna for Crystal Set Worked All States BC challenge?
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K1JJ
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80
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35707
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November 12, 2018, 02:36:06 PM
by K1JJ
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Question about Amplifier Tube Cooling
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K1JJ
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53
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37092
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March 28, 2005, 08:35:15 AM
by WD8BIL
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Using diodes across relays - a reminder
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K1JJ
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11
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7064
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February 04, 2013, 04:42:41 PM
by W1RKW
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Troubleshooting Tip - "The case of the spastic plate meter "
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K1JJ
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6
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4116
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February 16, 2009, 03:15:41 PM
by K1JJ
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