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Wow, that's fascinating. I've had a similar idea rattling around in my head, about designing a uBitx with experimenters in mind. I was thinking of using a single board but with each block isolated and

Thank you, nice to put my mind at rest. Richard.

We havent seen any reports of anyone suffeing static damage. I built the original on a wooden plate.

Hi all, just joined the group and now have the latest bitx40v3 reading to install. Now it's been a long time since i built anything ( C.M.Howes 80m rx) so I was wondering if I have to consider static

By adding a couple of components, the Raduino can become a very stable NBFM transmitter. I just blogged my build : http://bitxhacks.blogspot.in/2017/10/raduino-as-nbfm-tx.html This will work equally

This looks great Mike, Please send me more info on this if you would. Also, information on how to obtain a set of boards and prices. Thanks, 73's Dale mikedoty@...> wrote:

Just a heads up on a modular build of the BiTX40.? If you haven't seen it, a young ham in Belgium (ON6RF) laid out a set of pc boards to build a modular version of the BiTX and placed the project on

I had problems making the new software revision 1.26 work after adding some more of the hardware mods.? I read advice given to reset the BitX40 (Keep the function pushbutton pressed during power

Jerry: I wouldn't be so quick to defend the IRFxxx series. Remember, these were designed to be switching transistors working at about 500 KHz. Yes, they can be adapted to RF with great success, but,

So definitely My Fault... It is all about the details..and it was a step 1 issue. the AdaFruit-GFX-Library is not AdaFruit-GFX-Library-master just delete the -master and magically compiles.. i did

I have a fast acting 4A with a Diode to ground directly after it.? A 1N4002 or so will do it. I found a small fuse with leads, so no socket was necessary. I have been lucky so far, no blown fuse. --

I have a new board on order and don"t want to take any chances. I am adding a inline fuse to my power line so the question is what is the best amperage I'm guessing it will be 1 or two amps. Also what

You guys dissing the IRF510 should take another look at the link in this post: ?/g/BITX20/message/34004 ( /g/BITX20/message/34004 ) Allison truly knows what she is

Sorry for the late posting! I'm old and I forget! Doctor gave me memory pills, but I forget to take them! BITX QSO Night, Sunday, October 29, 7pm Local Time, 7277 kHz in North America, 7177 kHz

I believe that is plain normal gain loss as frequency rises, it is a cheap switching mosfet, not an HF rated device. I just used two amps after it to some 400 on 40, and 100 w on 10 m.

A simple substitute of the RD15HVF1 for the IRF510 (different pin-out!) makes the rf amp capable of at least 30 MHz. The IRF510 becomes very inefficient over about 20 MHz. Dr. William J. Schmidt -

All, I got the unpoulated G6LBQ pcb from another ebayer. I have assembeld this board but found out, that it does not work correctly. One big problem is the spurious oscillation of the MC1350 at full

Yeah, that’s exactly what I’m intending to do. :-) -Mark

Is there a way of using the QRPlabs filter pcb and switching bands that way. I fancy building a tri bander 80, 40 & 20mtrs and having other bands as a listen on option, or just building one up as a

And then it pops up to 225w on 6m: ?/g/BITX20/message/22597 ( /g/BITX20/message/22597 ) There are lots of things that can limit an amp from performing well as