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I am looking at N5ESE's Classic RF Probe page. He uses a 0.01 ?F cap and a 1N34A diode. Are?the cap value and diode type critical? Thanks!

Progress I think.? Replaced the 1-AM smd with a 2n3904 and have side tone back (thanks Conrad) but the display has gone off showing black boxes across the top and gibberish when I key.? It had been

When I sow the bottom of the heatsinks were almost touching the board I removed just a piece 1-2mm of the heatsinks. Just to be sure they could not touch the board.

Thank you Marco,? I worked that out by using a USB microscope to see the number stamped on the component and found out it was a version of the 2n3904.? I have some spare 2n3904s and might give it a

Nice job Peter! 73 Mike

Q90 is a smd version of a 2n3904. Part number is mmbt3904. The schematic is correct. A few people have used a TO-92 version with success. It is just hard to align, due to the difference. Good luck &

Maybe add it to the files section? Mike

Can I get a copy of that component list as well please.? Thanks Jeff VK3GMO ex WA2GMO

Conrad, according to the schematic q90 is a 2n3904.? What is installed on the board is a flush mounted transistor....if it is a 2n3904 no reason not to replace it with a t0-92 form is there?? Am I

Thanks Conrad; Adrian and Tim.? Yep I can see the inline fuse is a must.? Was also thinking about a master heatsink so the warning about the heatsinks needing to be isolated from each other was

Is the gain slider in wsjt-x in about the middle of its range? ?Does the radio do ok with ssb voice?

Check transistor Q90 . it is what I replaced last time I had the same problem. 73; AB6ST - Conrad [email protected]> wrote:

We got wsjtx 1.9.1 installed on Linux and wanted to try FT8 on the uBITX (with CEC firmware 1.080).? Using the FT-817 setting, frequency selection and PTT work as expected.??Receive is fine but

as AW pointed out,? the Hsinks are not isolated from rail voltage.? In some cases because of the anodising and depending on the plating of the screw used to pull the IRF up to the heat sink,? they

The standard heat sink is to small. To make it worse there is no heat sink paste on them to transfer the heat to start with. those poor Fets get cooked. If you can’t leave your fingers on them

My uBITX was working for cw and ssb but the irf510s were running too hot.? All output dropped to zero, no smoke or dramas and I was sure the IRF510s were fried and I just happened to have four more

I've done some more tweaking for the 3.2" Basic HMI https://drive.google.com/open?id=14TdrAee7sixKKE96n2RNRSx5wE5Oji5C ( https://drive.google.com/open?id=14TdrAee7sixKKE96n2RNRSx5wE5Oji5C ) Enhanced

Yes, setting the screen for 3.5" in the editor will let you use it, it just won't be formatted for the higher resolution 3.5" screen.

I damaged the Nano on the?Raduino board (bad wiring job on my side unfortunately). Is there any place to get a replacement Raduino board (I could solder in a new?NANO if need be, but would rather