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May 22, 2025, 10:44:07 PM
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RCA serial number lookup
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KB0TXC
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0
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414
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March 22, 2025, 10:26:24 AM
by KB0TXC
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Viking Challenger Tube Substitutions
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W0PWE
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4
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904
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March 21, 2025, 01:40:58 PM
by DMOD
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Looking for documentation for RCA UL-4392 oven controlled crystal oscillator
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KB0TXC
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9
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1162
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March 21, 2025, 09:38:24 AM
by KB0TXC
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Globe Champion 300
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W5FH
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1
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700
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March 12, 2025, 11:38:22 PM
by K4RT
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Two vs one Receiver RF Stage
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n8fvj
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27
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4167
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March 11, 2025, 10:12:12 PM
by Steve - K4HX
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More DX-60 PTT Wiring
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Dave K6XYZ
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10
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1852
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March 06, 2025, 01:40:03 PM
by DMOD
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HALLICRAFTERS HT32 / HT32b
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KB5MD
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2
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610
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March 05, 2025, 03:51:04 PM
by Pete, WA2CWA
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Testing a swinging choke
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W1RKW
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4
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2179
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March 04, 2025, 12:50:09 PM
by Tom WA3KLR
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plastic dials on Heathkit SB301 and other models
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K8DI
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1
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440
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March 04, 2025, 12:42:05 PM
by w7fox
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DX-60B audio circuit levels
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W3JKO
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30
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4023
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March 02, 2025, 11:10:19 PM
by DMOD
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Any advice on 40+ year old NOS glass power tubes?
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K8DI
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10
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1840
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February 21, 2025, 11:29:03 AM
by KA3EKH
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Johnson Viking 500 with Invader 2000 P/S
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KW6T
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1
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654
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February 17, 2025, 03:29:18 PM
by KW6T
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grid drive level vs output and modulation....
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K8DI
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4
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1225
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February 17, 2025, 02:49:48 AM
by DMOD
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Tek 465 to the rescue!
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KD1SH
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15
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2087
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February 15, 2025, 09:01:13 PM
by WQ9E
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DDS VFO using AD9850 2 output 180 degrees out of phase
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KD6CXW
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4
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1038
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February 15, 2025, 03:14:11 AM
by vk3alk
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Excellent BC348 Alignment & Restoration Video
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WA2SQQ
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11
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1462
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February 12, 2025, 01:54:19 AM
by Opcom
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MOVED: Locked Message
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Pete, WA2CWA
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0
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462
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February 08, 2025, 02:40:13 PM
by Pete, WA2CWA
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sticking DowKey
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K8DI
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5
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894
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February 07, 2025, 10:19:34 AM
by W1NJC
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811A: Center tapped primary?
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KW6T
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3
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695
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February 06, 2025, 11:29:46 PM
by KW6T
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Johnson Viking 500 Power Supply/ Separated units?
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KW6T
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21
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5434
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February 04, 2025, 05:52:27 PM
by KW6T
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Taking Ugly Betty to the Prom.
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KD1SH
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10
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1346
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February 03, 2025, 08:59:41 AM
by KD1SH
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Adcock arrays at work
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WA4WAX
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0
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363
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February 02, 2025, 01:04:54 PM
by WA4WAX
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Antenna Idea
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WA4WAX
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0
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370
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February 02, 2025, 12:04:36 PM
by WA4WAX
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very old plastic +paper tape removal, without ruining painted text.
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Opcom
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18
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1946
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February 01, 2025, 05:59:58 PM
by Tom W2ILA
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Johnson Viking Valiant band change problem
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W1OAT
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6
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1124
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January 28, 2025, 02:11:21 PM
by W1OAT
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 Topic you have posted in
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AMfone - Dedicated to Amplitude Modulation on the Amateur Radio Bands
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