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HT-40 Modification and Upgrades Steve - K4HX 1 12975 Last post December 31, 2016, 09:25:47 PM
by DMOD
Early Homebrew transmitters W4RON 4 13335 Last post August 18, 2008, 10:08:49 PM
by Carl WA1KPD
CCS, ICAS, IMS, and IVS ratings Opcom 1 13688 Last post July 17, 2015, 06:02:23 PM
by Opcom
Heathkit Parts WA1HZK 0 14514 Last post January 09, 2010, 10:14:57 AM
by WA1HZK
Possible 10% increase in efficiency in class C tube output stage (easy) IN3IEX 9 15258 Last post December 17, 2011, 12:40:43 PM
by W2PFY
A Dual Band Ten Watt CW/AM Transmitter Steve - K4HX 0 16165 Last post March 10, 2018, 04:01:43 PM
by Steve - K4HX
6T9 Complete Carl WA1KPD 2 16427 Last post June 05, 2008, 07:25:31 PM
by K1ZJH
HIFI Home Broadcast Transmitter DMOD 7 16619 Last post December 18, 2019, 02:08:04 AM
by DMOD
Audio Mods for the HT-37 Steve - WB3HUZ 2 17236 Last post September 11, 2011, 12:48:51 AM
by w3jn
The KE1GF Integral (160-80-40) Driver, 2FET SEPP Class-E PA KE1GF 6 17484 Last post September 28, 2005, 09:29:53 AM
by WA1GFZ
Old transmitter Rescued from the Scrapyard KD2AZI 17 17601 Last post August 04, 2020, 09:47:28 AM
by W2PFY
Ranger Mods W5SUM 6 17674 Last post August 09, 2005, 02:01:24 PM
by Steve W8TOW
Impedance network design calculator w3jn 4 18452 Last post August 26, 2012, 12:47:25 PM
by W4NEQ
DX-100 With Afterburner mods WA1HZK 8 21086 Last post July 07, 2007, 11:32:45 AM
by W1GFH
Eimac on Modulating Tetodes Steve - K4HX 0 23314 Last post November 16, 2014, 09:32:41 PM
by Steve - K4HX
Johnson Invader 2000 Mods and Upgrades by Frank, KB3AHE Steve - WB3HUZ 12 24604 Last post October 17, 2005, 06:48:23 PM
by Vortex Joe - N3IBX
Loading an amplifier (transmitter) KX5JT 14 24670 Last post June 19, 2009, 01:08:04 AM
by ke7trp
Knight T-150 Transmitter Modifications DMOD 7 24686 Last post June 14, 2021, 03:25:50 PM
by DMOD
AM Transmitter Build kc4umo 14 24822 Last post February 09, 2021, 07:09:34 PM
by W2PFY
AM BC station categories WA3VJB 9 25001 Last post November 26, 2007, 08:54:01 AM
by flintstone mop
Comparison of new 3-500Z triodes John K5PRO 5 25893 Last post January 11, 2008, 11:06:08 PM
by Opcom
Plate Modulation vs Linear Amplifiers k4kyv 11 28274 Last post September 22, 2005, 07:50:59 AM
by Ian VK3KRI
Heathkit DX-60 WC3K MODS n8yhy 4 29446 Last post December 21, 2009, 06:50:55 AM
by KX5JT
simple low power modification for thr Johnson Ranger and the WA1HnyLR lite mods Tim WA1HnyLR 0 30054 Last post April 03, 2015, 12:58:25 AM
by Tim WA1HnyLR
Stupid ART-13 Tricks WU2D 12 31000 Last post June 09, 2009, 04:53:50 AM
by k4kyv
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