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Very nice, I am going to cut one out of acrylic at the local makerspace. Depending on how long it takes (laser cutters are not free to use) I might make a few extras if anyone is intrested

Don't know if they are authentic but you can get them (kind of expensive $6 bucks apiece on Ebay). Also from Kynix for $7.25. https://www.kynix.com/Detail/887745/SL1621C.html Mike K5ESS

Thanks! Be advised that my AGC amp leaves something to be desired.? It works, but needs refinement.? Attack can be slow and it can pump on really strong signals.? Sure wish I had some old Plessey

Thanks, wow you have quite a lot of home brew builds!? Very nice.

Sean Glad you may have found it. Sure, bridge any similar value cap you have. You can even temporarily,? or permanently install the leaded cap on top to see if audio is restored. I have certainly

Hi Sean, It's no problem to use a conventional part with leads if you want.? You'd just have to be careful that the connections don't stray onto other pads.? If you have room, you can just tape the

Take two 15-30 watt irons . Heat them both . Hold one om each hand. Place tip of one on one end of part place the tip of the other on the other end of part. Slightly press the tips together and when

The PDF is of what the etched board looks like.? For most PC board generation, the image must be flipped to reverse. _W_ --

John I just assembled the simpler nd6t agc, one npn plus one mosfet. I left room on the board to update it to the other circuit. The first 20 dB may be enough as I am used to the k2 limited agc. I

Dave, It occurred to me that the to-scale PDF of the preamp/filter board and parts layout are not in the zip file. Those are attached... Woody

Hi Dave, I think all (more than?) you want to know can be found on my web site,? www.albe24.com Need to scroll down and click on the Amateur Radio section, then to the uBitX. The thumbnail image is a

So last week I said that there was an audio hiss, but no signal on my UBitx v4. I think I may have traced the problem. The capacitor C4 seems to have been mechanically scraped off the board. My

Possibly for some less expensive alternatives can see this message chain https://www.eham.net/ehamforum/smf/index.php/topic,123052.0.html

...that I'm looking for instructions/diagram on installing. Looks like there's at least a couple versions. Thanks John K5MO

I've got my uBitx apart and have just received a ND6T agc board throughole with the VA3NOI board layout I think. I have all the parts to populate this, but are there instructions as to how to install

Hi, I've been following these replies with interest. Lots of practical information on what the trade-offs are vs cost of the rf-explorer vs a full spectrum analyzer. Particularly the signal levels to

Hi do you have the files for the RF pre-am and the agc? Hard to see the pic there do the files specify exactly where the connections go to the main board? Thanks

Tried that it's hard to actually even record my volume is so soft to start out with.? But from what I can tell it's seems to be tuned about correct.

Sorry. typo in the prior email: Once the BFO is aligned, then can go back to the main VFO calibration, though I believe that if you truly zero beat the signal, adjusting the BFO should *NOT* impact

There is a free program for Windows (link attached), that is an audio spectrum analyzer using a mic input. Process is to tune to an open channel and view the spectrum. The spectrum should go from