开云体育

Great. Now I have foreigners mass-producing my amp. Thanks for that. Dr. William J. Schmidt - K9HZ J62K(J68HZ) 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ VP2EHZ Owner - Operator Big Signal Ranch – K9ZC

I seems that my K9HZ amplifier has 8-9W on 3.7 MHz and 12V.? I attached the schematic of my measurement. I think, that tinySA is more accurate than reading values ??from my oscilloscope. I found

Oh yeah, this one: Project System For Teensy 4.1 - ProtoSupplies <https://protosupplies.com/product/project-system-for-teensy-4-1/> Dr. William J. Schmidt - K9HZ J62K(J68HZ) 8P6HK ZF2HZ PJ4/K9HZ

This new board is more limited in that way.? The more expensive boards have jumpers on the pins for most functions allowing them to be used for other purposes.? The most expensive board has a 7"

*** Even the Teensy itself suffers from that. The on-card boot processor hijacks the CPU's JTAG pins. The inability to run a debugger has cost us dearly. - Jerry, KF6VB

Shield? You mean like radiation shielding? I guess I made a prototype... Dr. William J. Schmidt - K9HZ J62K(J68HZ) 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ VP2EHZ Owner - Operator Big Signal Ranch –

The only time I've ever seen this (oscillation) is when U8 PIN 5 has a DC path to ground somehow... usually in the 1.8MHZ HPF section... Dr. William J. Schmidt - K9HZ J62K(J68HZ) 8P6HK ZF2HZ PJ4/K9HZ

My problem with these “canned” prototype boards is that pins from the processor are dedicated to specific functions that are difficult to repurpose. The display on the one in the link is not a

I got two about 3 weeks ago. No tariff.

I often use a development board from ProtoSupplies when testing out new Teensy configurations.? Ken has a new board ( https://protosupplies.com/product/mini-platform-teensy41/ ) that's got the audio

Thank you for the reminder!? I ordered a display in the first week of May.? I can't track it.? I sent a note to Buydisplay to figure out what is going on. Total price $46.40. -- 73 Greg KF5N

Has anyone bought displays recently from buydisplay.com? Did you have to pay tariffs? I’m just trying to figure out what to expect. Thanks, Matthew NE3U

*** Do you have one with a shield for the display? Pix of same? - Jerry, KF6VB

Yes I have FOUR T41 radios in various states of progress sitting here on the table as platforms for testing. I’ll publish the official vendor supported list of BIT-codes for the bands for everything

Hello, When we last left Jerry with his intrepid T41, he was getting reports of bad, noisy transmit. It started suddenly during a QSO. Today, I hooked the T41 up to a dummy load - actually, a 500W

I'll add the expanded list of band codes into the rewrite. Making steady progress -- I have finished the receive chain and just managed to get the code base to compile with both the Arduino framework

Well that certainly is doable… easy from a hardware perspective. We just add another I2C expander to sit on the back panel to an AUX connector… a different address and completely controllable from

I am working on a 3d printed mic case, still needs some tweaking. Not my design (above my pay grade) but I think I can make a few tweaks to STL files. Tim

Ouch Just hit a nerve Hi! I miss the db25 connector from Hermes/Pandora days. It had 12 programable outputs, they were programable for each band. I used 4 for BCD BPF and 4 for LPF (different because

No radio company or accessory company uses 0011 for 60M. That’s 40M for them all. They squeezed in 4M too but that makes more sense to the EU than the US. Dr. William J. Schmidt - K9HZ J62K(J68HZ)