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November 05, 2025, 01:56:45 AM
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Hallicrafters sx-9 transformer specs
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N9AXl
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1
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1887
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May 02, 2025, 05:54:50 PM
by DMOD
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FT-901DM Mic amplifier circuit
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kb3ouk
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3
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5022
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April 25, 2025, 06:34:23 AM
by pa3cli
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Tektronix Surprise.
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KD1SH
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10
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3953
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April 19, 2025, 08:57:51 PM
by KD1SH
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National HRO-60 Hum
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W1TTL
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23
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6282
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April 19, 2025, 08:14:46 PM
by W1TTL
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UTC Mod Transformer Connections
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KD1SH
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22
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5726
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April 16, 2025, 02:23:15 AM
by Pete, WA2CWA
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One for an EZNEC person
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WA4WAX
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1
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1643
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April 13, 2025, 04:13:21 PM
by DMOD
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6m local rag chew suggestions
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n5ama
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21
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4781
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April 12, 2025, 06:31:58 PM
by WB6NVH
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RCC 230L Amplifier
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W3JKO
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13
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3398
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April 09, 2025, 10:31:31 AM
by W7TFO
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Phase the Bobtail
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WA4WAX
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1
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1225
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April 05, 2025, 12:58:13 PM
by WA4WAX
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Johnson Viking Valiant modulation problem.
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W1OAT
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7
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2780
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April 04, 2025, 01:02:47 PM
by W1OAT
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Interesting audio pass band circuit
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Opcom
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4
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2282
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April 03, 2025, 10:51:37 PM
by Opcom
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RCA AM oscillator
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KB0TXC
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9
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2567
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April 03, 2025, 12:24:54 PM
by KB5MD
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Bobtail Curtain booklet
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WA4WAX
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3
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1504
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April 02, 2025, 03:51:14 PM
by Pete, WA2CWA
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Harris RF 131
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kc2we
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1
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1018
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April 01, 2025, 04:27:29 PM
by Pete, WA2CWA
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1944 Army-Navy recommended tubes
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W1DAN
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2
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1445
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March 24, 2025, 05:43:41 PM
by W1DAN
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Question on keeping rf out of mains
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KB0TXC
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9
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2610
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March 23, 2025, 01:27:48 PM
by Steve - K4HX
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RCA serial number lookup
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KB0TXC
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0
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1069
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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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1730
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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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2508
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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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1293
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March 12, 2025, 11:38:22 PM
by K4RT
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Two vs one Receiver RF Stage
« 1 2 »
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n8fvj
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27
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7224
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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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3171
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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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1205
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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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8069
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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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907
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March 04, 2025, 12:42:05 PM
by w7fox
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AMfone - Dedicated to Amplitude Modulation on the Amateur Radio Bands
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