Like Oliver on the Software side, I have graciously been handed the hardware side of the T41 development moving forward. ?(Just my take with this next statement) The software side is easier to experiment with… basically because its easier to “roll it back” if the experiment fails.? To that end it requires more discussion and engineering calculation on the hardware side to make measurable steps forward. ?I do have a stable of engineers that work for me… but they are not here to work on the T41 project (unless they do it off-hours).? ?To that end, I will start permanent “hashtag” sub-groups in the AmateurRadioBuilders when there is a growing interest in any aspect of the T41 hardware to address and discuss.?

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There will be some changes to the building process tools I want to announce today.? I will begin to stock solder masks shortly… something I have not done in the past.? I originally considered stocking solder masks and “renting them out” for reuse.? But after understanding that the SHIPPING for return would cost about the same as purchasing a mask outright… I will simply sell them outright.? Then you can share them on a local/ club level.

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I’ve shipped about 50 of the display driver hardware devices.? I have about 150 more in stock and then I will restock.? Eventually, this hardware can be moved to the main board if there is an update.

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Remember, ?there is a difference between the T41 hardware and my K9HZ, and the K9HZ/KI3P hardware projects that we may or may not allow group think due to the fact that there may be external requirements that you are not aware of (e.g. the 100W PA module, the VHF/UHF Module, ETC.). ???

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Here are a few hardware things I am thinking about for the existing T41 boards.? If we update the main board to a 12.7 at some point, I think we should consider placing the hardware from the audio hat directly on the main board.? I would also put the SPI display driver on the board… a pair of ultra-low noise references for the A/D and D/A as needed, and possibly update the linear regulators with ultra noise LT3045 (etc.) devices.? Maybe splitting the A/Ds and D/As to a separate card… off the Main board may facilitate more experimentation at that level too… making it easier to change.? All of these are small changes… but if you are an experimenter, it might be up your alley.

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Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ VP2EHZ

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Owner - Operator

Big Signal Ranch – K9ZC

Staunton, Illinois

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Owner – Operator

Villa Grand Piton – J68HZ

Soufriere, St. Lucia W.I.

Rent it:

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Moderator: North American QRO Group at Groups.IO.

Moderator: Amateur Radio Builders Group at Groups.IO.

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email:? bill@...

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