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December 14, 2025, 02:31:12 AM
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RCA AM oscillator
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KB0TXC
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9
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2694
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April 03, 2025, 12:24:54 PM
by KB5MD
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Interesting audio pass band circuit
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Opcom
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4
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2334
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April 03, 2025, 10:51:37 PM
by Opcom
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Johnson Viking Valiant modulation problem.
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W1OAT
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7
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2875
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April 04, 2025, 01:02:47 PM
by W1OAT
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Phase the Bobtail
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WA4WAX
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1
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1278
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April 05, 2025, 12:58:13 PM
by WA4WAX
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RCC 230L Amplifier
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W3JKO
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13
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3577
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April 09, 2025, 10:31:31 AM
by W7TFO
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6m local rag chew suggestions
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n5ama
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21
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4996
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April 12, 2025, 06:31:58 PM
by WB6NVH
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One for an EZNEC person
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WA4WAX
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1
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1730
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April 13, 2025, 04:13:21 PM
by DMOD
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UTC Mod Transformer Connections
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KD1SH
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22
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6132
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April 16, 2025, 02:23:15 AM
by Pete, WA2CWA
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National HRO-60 Hum
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W1TTL
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23
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6573
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April 19, 2025, 08:14:46 PM
by W1TTL
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Tektronix Surprise.
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KD1SH
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10
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4296
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April 19, 2025, 08:57:51 PM
by KD1SH
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FT-901DM Mic amplifier circuit
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kb3ouk
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3
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5134
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April 25, 2025, 06:34:23 AM
by pa3cli
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Hallicrafters sx-9 transformer specs
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N9AXl
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1
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1998
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May 02, 2025, 05:54:50 PM
by DMOD
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MFJ HF/VHF SWR Analyzer Calibration
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AJ1G
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1
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2056
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May 04, 2025, 07:25:28 PM
by KD6VXI
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Hallicrafters HT-9 TUs
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n5ama
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0
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1527
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May 15, 2025, 09:48:39 AM
by n5ama
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Ballast replacement help
« 1 2 »
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n5ama
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34
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8604
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May 19, 2025, 05:05:23 PM
by w8khk
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Lesson learned... defining ground in NEC
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W4AMV
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3
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2648
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May 20, 2025, 09:35:51 AM
by W4AMV
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Externally modulating a Valiant
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WR6J
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11
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5183
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May 28, 2025, 10:29:48 AM
by W3SLK
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I love mystery chassis!
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KD1SH
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8
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4341
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June 02, 2025, 11:13:12 PM
by Opcom
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Clegg Zeus parts unit??
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n5ama
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1
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2183
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June 08, 2025, 09:37:23 AM
by n5ama
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SDP 1000L amplifier choke
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n5ama
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5
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2733
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June 19, 2025, 03:22:54 PM
by Opcom
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Merit Transformer Mystery
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KD1SH
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8
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2483
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June 20, 2025, 12:44:35 PM
by KD1SH
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Johnson Ranger VFO Drifts on 40/20
« 1 2 »
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W1TTL
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33
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20106
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July 09, 2025, 10:13:32 AM
by W1TTL
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Same conductor size in different power cords have different Amp ratings.
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Opcom
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10
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4440
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July 10, 2025, 12:34:51 PM
by Opcom
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Transformer housing
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KB5MD
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2
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1942
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July 13, 2025, 12:09:32 PM
by w9jsw
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Which mod transformers don't need a reactor?
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KD1SH
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13
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8838
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July 19, 2025, 01:32:30 AM
by KC4VWU
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AMfone - Dedicated to Amplitude Modulation on the Amateur Radio Bands
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