开云体育

This checker is ready build , not a kit , for 45 Euro? (-: 73 John

Here is a FB copy of the AADE : http://www.pe1acb.nl/diversen.htm 73 John

Hi Sean 10K is correct. See http://qrp-labs.com/qcx/qcxfaq.html#trimmer 73 Hans G0UPL http://qrp-labs.com

I'm working through a build of the QCX, and noticed that the trimpot in my kit (R47) may be incorrect - it is marked '103' (10K value)? instead of '104' (100K value) as the instructions call for.?

Several years ago I built several SMDR kits, I had bought a Commercial type LC meter but it wouldn't read the coils, then I found out about the AADE LC checker kit, easy to build and all of us that

They exist. Well, not perfect, but quite good. They're called Vector Network Analyzers. They can give you very precise measurements of resistance, capacitance, and inductance over a wide range of

The trouble with all of these LCR meters is rarely do they test at frequencies where you will be using the parts. The best solution ive found is to set up a test jig with my spectrum analyzer with a

Sorry, should have mentioned that it is S/N 2637!

I bought some enamelled "craft wire" in a craft/sewing shop a few years ago and one packet proved to be of ALUMINIUM wire. I've since observed that flower arrangers and sewing shops are unaware of any

deleted the old post to correct bandpass to low pass Correct (August). I completely hosed the range conversion up in my post. Here's what I see at the BNC jack using the 50Ω termination on the probe.

Happy, happy danced!? ?Can't wait to get started building! 73, Bill NZ0T

Hi all, I use Peak Electronics LCR45. It is not cheap but it is good. The DCA Semiconductor Analyser is also good. www.peakelec.co.uk 73 Roger G4IUP.

Here's what I use (but I do more surface mount than leaded these days): https://smarttweezers.3dcartstores.com/Smart-Tweezers-Colibri-PN-ST52CAD_p_73.html Granted, not what many would consider cheap

Hello Bernd, Yes, I am checking those coils points to see if it might be that problem. I may have to pull the coils and remount them. ? I was hoping it might be something else that I was missing,

I put the WSPR on a Bob, However you check you are likely to see multiple "signals". The important thing is the levels of these compared with the fundamental as shown by the WSPR decoder. This is

Hi Viktor! I think it is a problem with key contacts. If you pass through the contacts of the 5-10 mA DC at the moment of contact, it destroys the thin oxide film and makes the contact more reliable.

hello kent, I would first alll tension according to manual page 123 ... check. Then definitely all loot places on touch, and paint spots especially on the coils. I had such a mistake s.einer coil

Dave The on-line calculator at toroids.info allow you to enter the number of turns for your core size and will return the length of wire required. There are other on-line calculators that do the same

Thank you both. I cannot decode but I do not believe that is the whole problem.? I have done Crystal/GPS alignment per the manual. I put the WSPR on a dummy load and disconnected the receiver antenna

Try toroids.info on the web. Roger G3YTN --- ** Roger Hill ** Links: ------ [1] /g/QRPLabs/message/20927 [2] /mt/8139910/522301 [3]