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Collins R-390 Receiver Break In
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wb1aij
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3
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2344
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January 02, 2009, 11:52:39 AM
by N3DRB The Derb
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Need info on Ameco pre-amp..
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wb1ead
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9
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10432
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October 21, 2009, 03:01:52 PM
by wb1ead
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5763 tube..need info
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wb1ead
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3
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2553
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October 10, 2012, 11:24:30 AM
by WQ9E
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Any Tube Experts?
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wb1ead
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16
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9561
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December 18, 2008, 04:34:18 PM
by Tom WA3KLR
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National NC173..couple questions
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wb1ead
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9
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8182
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June 15, 2009, 08:03:10 PM
by KM1H
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What Can I Expect??
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wb1ead
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18
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9871
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March 17, 2011, 12:00:46 PM
by wb1ead
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Anyone familiar with Collins HF8050 rcvr?
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wb1ead
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20
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12188
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April 09, 2010, 01:46:49 PM
by WA1GFZ
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Need help on variable caps..
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wb1ead
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12
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6739
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October 28, 2014, 10:13:27 AM
by wb1ead
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HT40/SX140 combo..
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wb1ead
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8
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4973
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June 10, 2008, 10:49:30 AM
by WQ9E
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RF MOD MTR..where was this used..??
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wb1ead
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2
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1477
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June 20, 2022, 10:08:09 AM
by wb1ead
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Unknown speaker polarity??
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wb1ead
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18
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7687
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March 25, 2018, 11:01:33 AM
by w1vtp
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Balun help needed..
« 1 2 3 »
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wb1ead
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60
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34951
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January 16, 2011, 11:25:56 AM
by W2VW
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National NC125 meter movement??
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wb1ead
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4
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2697
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December 28, 2010, 11:37:57 PM
by w3jn
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Knight-Kit TR106..help with AC conn
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wb1ead
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3
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3488
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August 07, 2011, 02:39:19 PM
by Pete, WA2CWA
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6HB5 for a 6GE5??
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wb1ead
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2
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2223
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July 11, 2013, 09:34:17 PM
by wb1ead
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Collins and Shure Bros info..
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wb1ead
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3
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1860
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August 02, 2021, 08:45:18 PM
by W1NB
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Tube Tester Updates??
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wb1ead
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3
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3601
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January 10, 2010, 06:10:02 PM
by wb1ead
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DR-250 tube from long ago..
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wb1ead
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2
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854
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September 05, 2023, 09:17:02 AM
by wb1ead
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Johnson Match Box??
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wb1ead
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5
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3350
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June 10, 2009, 03:54:11 PM
by wb1ead
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TUBE EXPERTS..AGAIN PLEASE
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wb1ead
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2
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2029
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January 03, 2009, 11:52:15 PM
by wb1ead
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Using SS PA amps as modulators?
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wb1ead
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22
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7394
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October 06, 2019, 10:24:06 PM
by Steve - K4HX
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Halli SX-130 alignment puzzle..
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wb1ead
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5
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4198
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July 31, 2015, 01:38:29 PM
by Pete, WA2CWA
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What was the use/application of this resistor??
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wb1ead
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4
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2178
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May 02, 2017, 05:27:39 PM
by WD8BIL
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National dial discoloration..
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wb1ead
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10
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5548
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January 05, 2011, 11:29:16 AM
by KM1H
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WHO CAN HELP??
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wb1ead
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3
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2722
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March 12, 2009, 01:50:42 AM
by KB3DKS
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