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There was a post yesterday that presented a YouTube video URL which showed how to solder small IC (e.g., like the Si5351 and 1808) on a PCB. It was a very good video and also showed the easy way to

And Hamvention is OVER! We had a great time… in-doors this year. Sold 50 fill T41 board sets, ten 20W PAs, ten of the latest T41 books (signed/personalized editions), and many other kits. Suitcase

Bill, Excellent! Should ease some concerns with soldering those small parts. Al ________________________________ Sent: Monday, May 19, 2025 10:15 AM To: [email protected]

As the tariff stuff eases, i will look into stocking RF boards with the PE4302 and the si5351 pre-populated. After talking with Al… i agree, it will be a good way to get more people to build the

Hey everyone! Tim, W4YN donated some very nice 3 wire pre-made cables, twisted, to be used to connect the teensy audio hat to the main board (the 90 degree pins). I will include these free of

Thanks Phil. Wow, he applied way more than I would have thought possible. I'd be afraid that using that much would create solder bridges under the chip. I'll dilute the paste like he says but try to

This is a good video and should convince others that soldering SMD parts to a PCB isn't that tough. Keep in mind, this is a difficult part to solder to a board. By comparison, a 1206 SMD resistor or

John This may help. This guy uses an alternate method. Microscope is an absolute necessary item. One extra thing I do is add some flux paste to the chip edge before running the soldering iron along

Thanks. My biggest problem is the two PE4312 chips (U3-U12). My first attempt using T5 Chipquik solder paste and a heat gun didn't go well. I couldn't get the solder to flow...though that is hard to

They are real, not just vaper writers ? I met Bill and Al today at the hamfest.? I bought more parts, bought a book, and took pictures of a real, working? T-41 !! Thanks so much. KD4TNX

I Just a few boards left at Hamvention. When they are gone its back to mail order sales. Drop by and get what you need. Ps i also have 7 signed (by Jack and Al) third editions of the book available at

It is here: https://github.com/DRWJSCHMIDT/T41/blob/main/T41_V012_Files/T41_V012_Assembly_Manuals/Source_Files/T41_RF_Board_Assembly_Manual__V12_042324.docx

Is there an RF board assembly document? I searched first :)

I am currently at Hamvention with a plethora of boards and kits. All set up in booth #2607 just across the floor from ICOM. Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ

In the news, tariffs on small packages from China ("de minimis" shipments) have been cut from 120% to "only" 54%. Commercial shipments are now charged 30%. This could mean that prices and shipping

Yeah its kinda of cool how you can throw together a bunch of stuff scattered on top of a table and it turns out it’s a pretty good little radio! Dr. William J. Schmidt - K9HZ J62K(J68HZ) 8P6HK ZF2HZ

Main board,? RF board, buttons, 4 encoders,? display, a few connections,? and it works! At first try there was no audio to the computer speakers.? Also no rf on the spectrum display. I tracked it

Yep, that the place. We are under the big tent this time. See you Saturday! Dr. William J. Schmidt - K9HZ J62K(J68HZ) 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ VP2EHZ Owner - Operator Big Signal Ranch

The rags with people in the know said we would likely see initial “shock” tariffs intended to get trading partners to the table for discussion. Once the discussions started, the absolute best

Bill, Are you still in Building 2,? #2607? I hope to see you Saturday morning.