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More power, less dissipation. RCA concept in ham class C transmitters Steve - K4HX 0 10402 Last post June 16, 2012, 06:23:35 PM
by Steve - K4HX
HT-40 Modification and Upgrades Steve - K4HX 1 12824 Last post December 31, 2016, 09:25:47 PM
by DMOD
National MB-40SL Multi-Band Tank Manual Steve - WB3HUZ 0 7219 Last post September 23, 2010, 11:16:16 PM
by Steve - WB3HUZ
Audio Mods for the HT-37 Steve - WB3HUZ 2 17133 Last post September 11, 2011, 12:48:51 AM
by w3jn
Johnson Invader 2000 Mods and Upgrades by Frank, KB3AHE Steve - WB3HUZ 12 24355 Last post October 17, 2005, 06:48:23 PM
by Vortex Joe - N3IBX
Series Modulated 807 Transmitter « 1 2 » Steve - WB3HUZ 25 56892 Last post May 18, 2008, 08:42:07 PM
by Opcom
HW100/101 & SB101/102 Mods - by Chris, KD2XA Steve - WB3HUZ 0 6643 Last post June 05, 2005, 03:46:38 PM
by Steve - WB3HUZ
Viking I as a Class C & Class B driver Steve W8TOW 4 11277 Last post October 05, 2012, 12:17:26 PM
by W2VW
Output optimizing the BC-610E for 50 ohms Steve W8TOW 5 9894 Last post September 18, 2012, 07:54:49 PM
by Steve W8TOW
Hammarlund PA-500 RF Deck Info Steve W8TOW 3 12676 Last post May 25, 2016, 06:30:32 PM
by DMOD
simple low power modification for thr Johnson Ranger and the WA1HnyLR lite mods Tim WA1HnyLR 0 29875 Last post April 03, 2015, 12:58:25 AM
by Tim WA1HnyLR
Power Improvement for the old No 19 Wireless sets VE3LYX 12 38127 Last post December 17, 2015, 08:18:31 PM
by VE3LYX
WA1HLR "LITE audio mods" for the Ranger, 2022 W1GFH 2 9394 Last post May 24, 2023, 09:28:59 AM
by W1GFH
Johnson Valiant Mods - Keith WA1HZK W2INR 0 7477 Last post June 04, 2005, 01:47:21 PM
by W2INR
Ranger Mods - Keith WA1HZK W2INR 0 6702 Last post June 04, 2005, 01:46:46 PM
by W2INR
Sweeping your Transmitter - K1JJ W2INR 0 7948 Last post June 04, 2005, 01:44:15 PM
by W2INR
Impedance network design calculator w3jn 4 18323 Last post August 26, 2012, 12:47:25 PM
by W4NEQ
Early Homebrew transmitters W4RON 4 13219 Last post August 18, 2008, 10:08:49 PM
by Carl WA1KPD
Ranger Mods W5SUM 6 17469 Last post August 09, 2005, 02:01:24 PM
by Steve W8TOW
A Telvar transmitter W7TFO 4 7199 Last post March 06, 2020, 09:25:17 PM
by W7TFO
T-368 blower noise reduction W9RAN 3 8883 Last post June 19, 2023, 05:38:16 PM
by W3SLK
Heathkit Parts WA1HZK 0 14441 Last post January 09, 2010, 10:14:57 AM
by WA1HZK
833's X 833's WA1HZK 0 9880 Last post September 09, 2008, 08:33:59 PM
by WA1HZK
Valiant & Ranger Mods WA1HZK 0 7087 Last post September 09, 2008, 08:32:54 PM
by WA1HZK
DX-100 With Afterburner mods WA1HZK 8 20912 Last post July 07, 2007, 11:32:45 AM
by W1GFH
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