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Well, the ISO7241 is a specially designed SPI buss buffer/ isolator/ driver chip…, it plugs into the T41 display socket on the main board (close to the Teensy) and the display cable plugs into it.

Hi Bill- Is your board placed at the display end?? It seems like it is more of a "buffer board" rather than a driver board, if so. I'm trying to visualize why it works. -- 73 Greg KF5N

The driver board seems to extend that to 6 feet (I can only measure the effect on a scope, not with the display)… someone else will give me the real story. Dr. William J. Schmidt - K9HZ J68HZ 8P6HK

I've continued my T41 v12 display experiments.? A 9mm clamp-on ferrite worked with my 5.5" ribbon cable. It didn't work with the 11" or 15" cables I had on hand to test.? So somewhere between 6" and

I have a 5V display.

Ok expect it. Is you display set up for 5V or for 3V? Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ VP2EHZ Owner - Operator Big Signal Ranch – K9ZC Staunton, Illinois

Sure, I'll test one.? Thanks!

Ok I’ll send you one too… 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

My rig with 7" display is working ok for most part. (PA needs some tweaking) I have a 6" ribbon cable but it has ferrite sleeve. It was freezing up but that was several FW versions ago. I can try the

Would you like to test out one of these display drivers (FREE)…? Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ VP2EHZ Owner - Operator Big Signal Ranch – K9ZC

I have a v12 Main board where the 5-volt display works with a 3.5" cable but fails with a 5" cable.? I've done some experiments.? The display works if the ribbon cable wires are separated.? I've

Ok yep looking for someone that is using a short cable that can expand a bit to test this out. If all else fails, I’ll send one to Al, because I know he will be curious… Dr. William J. Schmidt -

That can work! 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 –

Wait a minute, Bill: my system at the present time does not freeze up, so that might not do you any good. Jack, W8TEE

I will have my 7" system ready in about 4 days, if that's quick enough. Jack, W8TEE

Hey for those that want boards, I'll be in town for about 5 days so now it the time to order. ALSO I'd like to get a couple of these display driver boards into peoples hands (yes, build and free) to

Well… Noise. Here are some things Oliver and I did with the T41 RF board to make the sensitivity and noise figure spectacular for the T41… 1. 4 layer board with V+ bus and GND inside to shield the

This is another update on my Tiny Ten transceiver, and particularly one trying to understand noise figure issues with the receiver side. ?I have done noise figure and distortion measurements and

Hardware was issue. I was testing 3rd party BPF that uses same bcd code as ours. Looking for short now. Tim

OKI-78SR-5/1.5-W36-C OKI-78SR-3.3/1.5-W36H-C They cost about $5 apiece. The 5V one is a direct drop-in. For the 3.3V one, you have to switch the wiring on two of the pins. Actually, you shift the