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Mullard 12AX7 ECC83 W3MMR 2 455 Last post July 23, 2019, 10:39:42 AM
by kb2vxa
BC-640 Transmitter Opcom 16 9929 Last post July 22, 2019, 08:58:35 PM
by Opcom
What To Do w/250 ma AC Meter W9ZSL 4 444 Last post July 22, 2019, 11:55:55 AM
by Opcom
Starting a Link Coupled Tuner N4LTA 10 994 Last post July 21, 2019, 09:34:28 PM
by Steve - K4HX
National NC183D Questions W3ON 11 1022 Last post July 17, 2019, 07:10:04 AM
by MikeKE0ZUinkcmo
cost of passive voice LPFs not bad, not cheap tho' « 1 2 » Opcom 38 4901 Last post July 14, 2019, 04:34:53 PM
by Opcom
Ordering crystals for a rca bta-1r transmitter Ac8wp 4 598 Last post July 11, 2019, 10:18:56 PM
by DMOD
Vertical Monopoles Using Buried Radials R. Fry SWL 17 1007 Last post July 09, 2019, 05:52:03 PM
by KK4YY
Grid trip spec for 8877 W9BHI 9 539 Last post July 08, 2019, 11:40:41 AM
by W9BHI
B& W 2500A amplifier help K9EID 2 311 Last post July 04, 2019, 09:38:55 PM
by K9EID
Rcvr with slowly decreasing RF sensitivity, but power on off restores full sens. af6im 8 689 Last post July 02, 2019, 09:18:35 PM
by KK4YY
Controlled Carrier discussion - all technologies Opcom 10 1092 Last post June 29, 2019, 08:23:55 PM
by WB4AIO
MOVED: Look For ER#49, ER#191, ER#192 w3jn 0 124 Last post June 29, 2019, 02:03:24 PM
by w3jn
Northern Radio Company: Seattle « 1 2 » ve3bkd 31 11910 Last post June 27, 2019, 01:06:29 PM
by KL7OF
Multi-Elmac AF-67 Battery Replacement W1KSZ 6 846 Last post June 25, 2019, 02:05:32 PM
by DMOD
digital audio modulation wa1mtz 1 374 Last post June 25, 2019, 12:13:41 PM
by WA1LGQ
5R4GY solid state replacements... « 1 2 » W3MMR 39 1918 Last post June 22, 2019, 10:29:35 AM
by DMOD
YELLOWED Collins Dial Drums - Guess What! WBear2GCR 20 1232 Last post June 20, 2019, 01:00:05 AM
by Opcom
A High Side MOSFET Switch - Redux KK4YY 14 808 Last post June 17, 2019, 09:26:16 AM
by KK4YY
Replacement DX-100 bulbs W3MMR 14 892 Last post June 14, 2019, 04:20:02 PM
by KK4YY
Help with transformer ID W8ACR 1 250 Last post June 13, 2019, 03:52:25 PM
by W2PFY
Yaesu FT 920 modifications ? VA3GRV 2 282 Last post June 11, 2019, 08:35:59 PM
by VA3GRV
Hipot Testing of Transmitting Tubes NW2K 8 749 Last post June 11, 2019, 07:09:52 PM
by W1NB
Open Collector Driven Relay Circuit WA2SQQ 1 236 Last post June 10, 2019, 05:33:15 PM
by PA0NVD
AM Carrfier Shift « 1 2 » W4DNR 48 3151 Last post June 09, 2019, 06:03:07 AM
by steve_qix
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