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Al, Details will be in the manual as they call out all parts. However, you will find that all of Hans' kits use standard 0.10" pin headers (2.54mm). cheers, Graham ve3gtc

Just wanted to say that I really appreciate the attention and support that Hans has given his products and service. Well done and outstanding support!

Dave, As an aside:? I've just joined this group for one? purpose at this time and that is to find out the spacing on all of the pin headers used so I can off-board mount my controls and I/O

I need to check voltages but the loud tone is very distracting.? Will it hurt anything if I disconnect the headphones while I have the rig powered up?? Will the audio section be able to handle no

Hi Alan, thank you again for your very good ideas. I will try it step by step to ?determine the problem. I have a newer IC1 here on my worktable and also another complete main-pcb (to be soldered;)).

Alan, Interesting. As far as I know you are the first to actually inform us of the sequence of this often reported failure. In my ignorance I'd thought it current. But what actually happens then is

Hi Alan, Well spotted, I stand corrected. 73 de Andy

Hi Andy, Any kind of current limiting device cannot stop PA failure because it happens through the stored energy in the decoupling and series inductor ending up exceeding the ratings of the output

If you need a fuse to act as fast as a transistor, why not use a transistor as a fuse ? http://electronics-diy.com/electronic_fuse.php 73 de Andy G0FTD

I have built and tested build 1666?and most seems to be working great. The only item is that I do not hear?any sidetone. I have a frequency difference but reckon that can be sorted with external

Hi Giulio, If you have not already done so do all the modifications http://qrp-labs.com/qcx/qcxmods.html As per the troubleshooting page, you have done voltage checks, but is the 20MHz crystal

Hello to the members I have just finished my QCX and after fired up I have a problem like that described in the assembly manual: only an empty row is visible. I have already read both the manual and

Sven Vln Dk fuer ihre Anweisungen! Unless otherwise, advised I'll be trying your method. Bob

Hello Karl, It isn't that hard to desolder an IC correctly. I normally use a desoldering-pump to suck up the solder each leg per leg. When the solder is gone, take some tweezers made of stainless

Be careful with a polyswitch solution. They trip at a much higher current than I expected. I got some for my uBitxd. Since it can draw almost 2 amps I selected a 3 amp, 16 V model. When I got them I

Thanks, Andy. I did not read the manual close enough. I was going by the picture and my memory. Always a bad combo for me. :-((. 73, Kent. ________________________________ Sent: Friday, February 9,

Karl Despite reading your good advice in installation, I've (embarrassingly) located IC3? incorrectly.? I've added nothing further to the board. I've?looked at?the method of replacing ICs -

Hi, I think this mode would be very good. 73.

Hi Kent, In the Baud setting screen is the first digit set to a non zero value? Try 1. If setting is 0 9600 gps is off. Look in the operating manual it is in there. 73 Andy

Potentiometer and a diode, run a signal not a voltage through. Observe shape on scope and keep pot to 80% max.