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Hi Sean I know its not the topic, but which method are you using to learn CW,? There are so many sites proposing the best way that I dont know which one to start with. 73! Daniel

I did have to readjust all the spark gaps and spring tension when I replaced my HAMKEY keyer with the QCX, but all fine now! Good luck. 73, Tony N0BPA Sent: Monday, September 3, 2018 3:28 PM To:

Robert,?Do not give up brother. I am at 62, attempting to learn CW. Its tough but it keeps the mind going.? De kc2lwx?Sean"Talk The World With Ham Radio "

Thanks Charles. I'm ordering another tonight. Jim - K9DD

Take heart, Jim. I had a problem with my first QCX. I did just that - set it aside - and then built another. After that I traced down the problem in the first build without any sophisticated test

Thanks for your confidence. I'm going to put it aside for awhile and think about it.? I may order another kit and try again.

You know what they say in skydiving "If at first you don't succeed...skydiving might not be for you"? :) Looking forward to working on mine, ordered one last week.? Lots of electronics when I was a

Frank: ? ? now that sounds like an Idea to try. When I get back home on Wednesday I'll be giving that a go.? ? ? 73, Donald L. Gover, KC9ZMY

Tony: ? ?I'm not using the MFJ keyer, just the Key. In fact if I set the QCX to straight key and use my nanokeyer it works 100% of the time. So I'm kind of stymied.? ? ?73, Donald L. Gover

Jim I strongly suggest not transmitting until the receiver is working. Unplug the key or paddle. On my build I missed on solder connection in the audio section. I found the issue by turning on the

Tom I suggest reading what is in the manual. Yes its honestly a 3 watt rig with 13.5 volts input. If you feed a slightly higher voltage only to the PA stage, you can gain a half s-unit at most. I

This may sound silly, but are you trying to key the QCX keyer with the signal from your MFJ keyer?. May I suggest that you connect your existing key and paddles directly to the QCX keyer input and set

Donald, You could try 1k pullup resistors from the paddle contacts to the +5V power supply. Maybe there is too much resistance to ground somehow. 73 de Frank PA3CNO Op 3 sep. 2018 16:08 schreef Donald

A short in your keyer wire/plug? Dwight C Watson Dwatson4@...

I see a number of topics addressing various issues with the Keyer but after trying all the various solutions I can't seem to solve mine. I have a MFJ-564b that seems to work flawlessly on my Elecraft

The TLC272 is not a rail-to-rail capable op amp and can only supply 10mA. So it's not a full replacement for the TS922, though it may suffice in this application. The TLV272 is rail-to-rail but can

Hi Jim We post 600-800 packages per month. A lot of money! 73 Hans G0UPL http://qrp-labs.com

I think TLC272 should also do the job, except perhaps for the final headphone stage. It's a similarly specced part, and is available in DIP. Regarding the supply voltage, look at the lowermost right

You are correct: the TS922 is now only available in SMD packages. You would either have to find some NOS DIPs or use an SOIC to DIP adapter. The other alternative is to find another suitable part. So

To get the best power output from QCX. --- This email has been checked for viruses by AVG. https://www.avg.com