Hi,
Changing 74AC74(U11) with PO74G74A has been suggested for a long time. I can confirm it is safe and easy to do, here in few simple steps:
1. Remove U11, preferably by hot air. Turn the board back and cut the 5V trace in the corner
2. Solder the new chip and put a small wire between the two decoupling caps (hot side, not GND)
You are all set!
73!
Hello,
We have added some new files files to the 0.7 package, mainly STL files for 3D printing (knobs, panels, stand). You can download it here.
73!
Hello,
As i have came back to active development (hardware and firmware) i found the need to update the boards with debug connectors. My obvious choice is the 6 pin Nucleo connector. The ST serial interface allows for fast programing from any IDE and real time debug (with 2 Mhz instead of printf via slow UART port).
Right now there are two debug ports, on the Logic and UI boards, so this panel reflects the position of those. If you have a printer, you can make one yourself as temporary solution, while debugging and keep your original aluminium panel intact.
And here the STL file: fake_left_debug
73!
Hello
If there are hams that have purchased mcHF V 0.7 Full kits ( or the Mini kits ) and need cases to finish please let me know by emailing me to:
djchrismarc@gmail.com
Please include in your email name and what country you are from so I can accommodate for Vat if in UK or EU area.
Kind regards
Lucy
Hello everyone
We were totally taken by surprise how quickly Pcb’s v 6 sold out. We already placed another, larger order this time to meet the demand. The factory we use are very good and quick. We’ll have more stock by end of next week.
In a mean time please accept my apology for not showing ‘out of stock’ on the website. We are experiencing some technical issues at the moment since we added Pcb’s as a new product. Looking to resolve it as quick as we can, but if still not successful I’ll post as soon as fresh stock arrives.
Sorry for the inconvenience.
Kind regards
Lucy
Hello
Responding to the increased interest to the mcHf v 0.6 from Hams we have now stocked and made available for purchase the PCB boards/ UI and RF on our Order page.
Kind regards
Lucy
We did a quick video of how to assemble the v 0.7. Hope you guys find it useful.
Hello
We would now like to offer cases to all Hams that have purchased Full kits.
Please get in touch via email.
Price of case is as follow:
Case £56.85
Recorded delivery charges: UK £3.90, EU £8.90, Worldwide £12.90
VAT ( 20%) for UK and EU countries will also be added by Pay Pal
Thank you
Lucy Jeliazkova
Saturday 17 Feb – Sunday 25 Feb
Hello
Just a reminder that we’ll be on a short holiday for a week and won’t be able to give technical support, answer emails or make sales.
Some of you were asking about the case and prices for it: We will make them available from Monday 26th.
Case £56.85
Recorded delivery charges: UK £3.90, EU £8.90, Worldwide £12.90
VAT ( 20%) for UK and EU countries will also be added by Pay Pal
Thank you
Lucy Jeliazkova
Hello
We have some limited number of full kits completed with cases. We will be able to sell those in the next few working days, before we leave for a short holiday on Saturday 17 February.
Please note we won’t be able to answer support e-mails until Monday 26 February
On our return we will resume sales and also provide cases to hams who have bought full kits. It will be sorted via custom invoices. We’ll post more details when we are back.
Thank you for your support!
Lucy and Chris
(click for larger view)
(click for larger view)