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Thanks to all, you've given me a lot of options.? I have already been investigating the LC-100A and the "transistor checker" to some extent before posting this inquiry here.? My only concern with

Jim, I started by building one of those. It certainly works well, I consider it the best because it will give negative "zero" readings if calibration drifts in use. Particularly useful for low

Hello Rob, Jon, and the group. The GM328 testers like Rob recommends are good testers.? I have a couple here.? I do not know what experience Rob and his students had with those testers but I found

Charles wrote: This looks like the one I have. My tests https://sites.google.com/site/alan4alan/lc100a_term_on_right You should not lose out if you buy from Amazon/Ebay, others I do not know. They

Hi Jon, Another much more accurate instrument to use is the nanoVNA. 73, Rob KL7NA

Hi Jon, My students and I have been using these cheap transistor testers

After my recent experience discovering the bad capacitor only after almost complete disassembly of the filter, I'm considering getting an LCR meter but there's only one catch in my case: it has to be

No weak signals so far after leaving the system off for a while. That's often when it would happen at start up.? A while back, I purchased a bunch of SO239's and PL259's off of Ebay.? Quite possibly

Hi Bill, The unun has SO239's on both ends that are connected by PL259's. The fit is very tight.? The ground is soldered to the casing. That being said, I am trying a little experiment and will

Hi, You didn't mention the coax connectors. Is your coax soldered directly to the transformer wires? BNC? PL259? If there are plugs and sockets is the fit good? Especially the center conductor pins.

Well, to my surprise, it's still doing it. Disassembled the unun and found nothing disconnected or shorted. I resoldered all the connections just in case, then reassembled. Tonight, when I started

Very sensitive, these capacitors, aren't they?? I, for one, never thought I'd encounter a bad ps cap as it had never been used and in my parts bin, but on the other hand it may have been bad from the

Yes, that is my suspicion.? I had a hard time soldering the toroid in the box I made as it was undersized.? Possible that I didn't solder one or more of the connections well.? I'll open it up in

It wasn't the ferrites. I rewound them all on T50-6 and T37-6 cores. Lots of turns for these and I still had the problem. The only thing left was the ceramic caps. The 2200pf caps were nice quality 5%

Hi, You are perfectly describing and intermittent open. A poor connection, cracked connection, cold solder joint. It is located in the 'unun' device and could be a bad connector like the coax

No, I used some spare 24 gauge hookup wire. Jon

if it is enameled wire wrapped through a ferrite core, you should use a layer of tape to insulate the core before winding because ferrites are somewhat conductive and enamel can be scraped off. When

I'm finding sometimes that signals are about half of what they should be.? This happens when either Softrock is used and was going on before I starting using the filters.? As you know, I have coax

I didn't want to start a thread on this, so thought I'd tag it on here.? I don't know much about NooElec, where I ordered my BC stop filter from on the 4th, but I do know that they won't cancel