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E510512 - That's what's in the radio at this time. I have a 7-incher waiting for me to fabricate a new front panel. I'm thinking aluminum, CNC machined with my router. - Jerry

What’s the model number of your 5” board? I only use 7” boards… I have FOUR different model numbers and from what I can tell they all have native 3.3V operation… and also a 5V regulator for

That’s kinda where I’m heading… Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ VP2EHZ Owner - Operator Big Signal Ranch – K9ZC Staunton, Illinois Owner – Operator

n 2025-02-06 11:29, K9HZ wrote: I vote for keeping it simple. If you jumper the main board for 5V, you *must* jumper ( or order ) the display for 5V also. PUT IT IN BIG LETTERS. - Jerry, KF6VB

My understanding is the the 5" board is 3v3 - period. The 5V option just sticks a 3-terminal regulator on the board to make 5V supply into 3v3 for the internals. I used the 5V option because I figured

Oh brother, this is starting to get complicated. The RA8875 is a 3.3V chip. and the inputs, as far as I can tell. from my research so far. are only 3.3V tolerant. To make this more confusing, some of

Well fact is… I’ve already done that… sort of…. For my prototype, I installed a 2x4 socket in a 2x5 holes pattern on the PCB knowing full well that 2 of the 10 holes on the end of the 2x5

*** Yeah, I have a bottle of that. I used it to repair the silicone coating at the edge of the power supply on my Signal/One - 1500V at that end. - Jerry, KF6VB

Huh…. Interesting. That same company has a non-conductive silicone finish (422) that I use on boards as a clear liquid insulator material. Works great on the back of connectors so that wires or pins

I just found - and ordered - the following item: https://www.amazon.com/MG-Chemicals-838AR-55ML-Conductive-Coating/dp/B0D3R5KP1J I think it has the potential to make a difference with the display

That could work if I can just cut them apart and let the user finish the ends. Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ VP2EHZ Owner - Operator Big Signal Ranch –

I second what jack says.

Dr. Bill Just board or board and chip is fine with me. (qty 2 sets) I have dual row idc headers here. The cheap IDC sockets use a not too heat tolerant plastic and will soften when soldering pins. I

I would prefer a kit of parts with the driver board. Thanks, Dave, W0DF

I bought a whole box of the 40 pin headers cheap, cut them to length with a Dremel. Get Outlook for Android<https://aka.ms/AAb9ysg> ________________________________ Sent: Thursday, February 6, 2025

Yeah. Thats a winner. Price is good too! Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ Owner - Operator Big Signal Ranch – K9ZC Staunton, Illinois Owner – Operator

How about this at lcsc.com, its under $0.10 https://www.lcsc.com/product-detail/Female-Headers_XFCN-PM254V-12-10P-H85_C492399.html Antti OH5KB to 6.2.2025 klo 7.24 K9HZ via groups.io

Thanks… Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ VP2EHZ Owner - Operator Big Signal Ranch – K9ZC Staunton, Illinois Owner – Operator Villa Grand Piton – J68HZ

maybe this (

Perfect Glenn… thanks. I was able to get 55… now I need another 145… Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ VP2EHZ Owner - Operator Big Signal Ranch – K9ZC