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Controlled carrier and audio mod for the Heathkit DX-40 n1uvi 0 9657 Last post January 26, 2012, 02:54:35 PM
by n1uvi
Valiant Modifications by WA1HLR Steve - K4HX 0 6326 Last post December 19, 2011, 07:38:41 PM
by Steve - K4HX
Possible 10% increase in efficiency in class C tube output stage (easy) IN3IEX 9 15045 Last post December 17, 2011, 12:40:43 PM
by W2PFY
The KE1GF Complete 1Watt Carrier 75M Solid State TX. KE1GF 13 47782 Last post October 07, 2011, 11:28:43 PM
by w3jn
Simple Method for Pi-Networks for a Range of Output Impedances IN3IEX 0 5801 Last post October 04, 2011, 05:20:51 AM
by IN3IEX
Design of Impedance matching networks (howto) for transmitters. IN3IEX 0 5110 Last post October 03, 2011, 07:57:02 AM
by IN3IEX
Audio Mods for the HT-37 Steve - WB3HUZ 2 17133 Last post September 11, 2011, 12:48:51 AM
by w3jn
Design Criteria: Transmitter High Voltage Solid State Rectifiers Steve - K4HX 0 7203 Last post December 23, 2010, 07:53:35 PM
by Steve - K4HX
National MB-40SL Multi-Band Tank Manual Steve - WB3HUZ 0 7219 Last post September 23, 2010, 11:16:16 PM
by Steve - WB3HUZ
Heathkit Parts WA1HZK 0 14441 Last post January 09, 2010, 10:14:57 AM
by WA1HZK
Heathkit DX-60 WC3K MODS n8yhy 4 29307 Last post December 21, 2009, 06:50:55 AM
by KX5JT
Loading an amplifier (transmitter) KX5JT 14 24436 Last post June 19, 2009, 01:08:04 AM
by ke7trp
Stupid ART-13 Tricks WU2D 12 30653 Last post June 09, 2009, 04:53:50 AM
by k4kyv
Heathkit DX60 overmodulation prevention mod K4TLJ 0 9587 Last post February 04, 2009, 07:50:38 PM
by K4TLJ
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
Early Homebrew transmitters W4RON 4 13219 Last post August 18, 2008, 10:08:49 PM
by Carl WA1KPD
6T9 Complete Carl WA1KPD 2 16320 Last post June 05, 2008, 07:25:31 PM
by K1ZJH
Series Modulated 807 Transmitter « 1 2 » Steve - WB3HUZ 25 56892 Last post May 18, 2008, 08:42:07 PM
by Opcom
Comparison of new 3-500Z triodes John K5PRO 5 25696 Last post January 11, 2008, 11:06:08 PM
by Opcom
AM BC station categories WA3VJB 9 24758 Last post November 26, 2007, 08:54:01 AM
by flintstone mop
DX-100 With Afterburner mods WA1HZK 8 20912 Last post July 07, 2007, 11:32:45 AM
by W1GFH
RCA BTA 1R1 Audio Issues Bob McGraw 0 7835 Last post October 14, 2006, 09:20:37 PM
by Bob McGraw
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
The KE1GF Integral (160-80-40) Driver, 2FET SEPP Class-E PA KE1GF 6 17330 Last post September 28, 2005, 09:29:53 AM
by WA1GFZ
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