Date   
QDX build for 40/20/15m - Summary of correct changes? By Charles Johnson · #92963 ·
QDX build for 40/20/15m - Summary of correct changes? By Charles Johnson · #92606 ·
50W Power Amplifier Question By Charles Johnson · #92300 ·
QDX gets 3 extra serial ports, a VGA output and PS/2 keyboard interface... By Charles Johnson · #92147 ·
Questions about adjusting QDX RF output by changing supply voltage By Charles Johnson · #90559 ·
Removing solder from holes By Charles Johnson · #88396 ·
QCX+ LOW POWER QUESTION By Charles Johnson · #87574 ·
Prevent vibration of inductors #50w amplifier By Charles Johnson · #86942 ·
max recommended SWR for QCX+ By Charles Johnson · #86773 ·
EFHW from ARRL By Charles Johnson · #84440 ·
50W PA - resistor and PCB traces problems By Charles Johnson · #84276 ·
50W PA - resistor and PCB traces problems By Charles Johnson · #84227 ·
Help reclaiming the magic smoke that came out of my 50W PA By Charles Johnson · #83404 ·
Help reclaiming the magic smoke that came out of my 50W PA By Charles Johnson · #83362 ·
50W PA build questions By Charles Johnson · #82747 ·
Measurement value for QRP Dummy Load - Peak or PEP? By Charles Johnson · #82306 ·
I know it's here somewhere: Toroid adjustments for QCX+20 By Charles Johnson · #81121 ·
Power Supply Recommendations for QCX+'s 50W amplifier By Charles Johnson · #80687 ·
Power Supply Recommendations for QCX+'HHHs 50W amplifier By Charles Johnson · #80537 ·
Power Supply Recommendations for QCX+'s 50W amplifier By Charles Johnson · #80508 ·
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