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Using sweep tubes for modulators
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W9BHI
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50
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26199
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May 14, 2012, 05:44:15 PM
by KM1H
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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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26246
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December 19, 2005, 02:47:29 PM
by WA1GFZ
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Pair of Johnson transmitters.
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kc4umo
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59
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26323
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November 23, 2017, 07:37:35 AM
by kc4umo
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Need your opinion on a tuner.
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K7NCR
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51
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26366
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November 01, 2009, 01:19:48 PM
by WA1GFZ
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About Vacuum Power Tubes by KK5DR
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Tom WA3KLR
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38
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26404
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February 06, 2011, 06:56:20 PM
by Tom WA3KLR
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New PCB etchant
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VE3ELQ
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8
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26474
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February 08, 2019, 11:00:54 AM
by KD6VXI
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Two Tech Questions - Blower Speed and Capacitor Leaks
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K1JJ
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49
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26530
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February 04, 2010, 08:33:13 PM
by WA1GFZ
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What tube would you consider for this amp project?
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ke7trp
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26589
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August 14, 2010, 07:46:03 PM
by Opcom
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Johnson Thunderbolt Power plug.
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ke7trp
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51
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26740
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August 17, 2010, 07:54:17 AM
by The Slab Bacon
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new project for winter...
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N2DTS
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60
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26743
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January 21, 2015, 08:26:09 PM
by N2DTS
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Simple diode negative peak limiter for line level audio?
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K1JJ
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43
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26799
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February 23, 2010, 03:21:05 PM
by WA1GFZ
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T-368 Exciter
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w5hro
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26
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26805
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February 04, 2010, 03:33:29 PM
by k4kyv
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Converting AC to DC filiments
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ke7trp
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58
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26816
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May 03, 2012, 02:17:16 PM
by KA2DZT
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Apache TX-1 HV Short
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oldsalt
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48
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26867
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March 09, 2008, 07:59:40 PM
by oldsalt
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4 x 833A solid state driver
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AMLOVER
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43
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26947
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April 07, 2011, 05:28:39 PM
by W2XR
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Convert Two 813 Tube SSB Amp To "AM"
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WB4AM
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51
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26974
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January 31, 2017, 03:38:40 PM
by WA6PBJ
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Interesting transistor failure (long, semi-OT)
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WB3JOK
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27179
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April 25, 2011, 07:14:48 PM
by Opcom
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Think I will convert an old cb radio.....
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kc4umo
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40
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27248
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November 22, 2015, 09:42:50 AM
by WA1LGQ
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Open Wire Reactance and Resistance Calculation
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aa5wg
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37
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27255
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April 21, 2011, 08:15:41 AM
by aa5wg
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NC300, In the dishwasher.. LOL
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ke7trp
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54
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27392
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December 17, 2009, 04:36:30 PM
by ke7trp
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FULL SIZE 75M LOOP..
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ve6pg
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51
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27482
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July 15, 2005, 10:32:05 PM
by wn5t
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Art-13 questions in a 8xx modulated by 811's
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w9jsw
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75
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27516
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April 08, 2018, 06:33:52 AM
by w9jsw
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National NC-2-40D
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N0WVA
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26
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27583
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June 17, 2010, 07:50:44 AM
by WQ9E
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Power required to drive an 813 in grounded grid linear?
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K1JJ
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23
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27616
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June 23, 2013, 10:29:24 PM
by K1JJ
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HIGH SWR Tribander
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flintstone mop
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40
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27649
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August 17, 2005, 09:58:55 PM
by K1JJ
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