News, Updates and Other Minutiae
August 2025 UR5WHK has created another version of the AD9833 project with a 128 X 32 OLED display. You can find it under the Gallery menu - it is on the same page as the MAX7219 version.
July 2025 UR5WHK has created an updated version of the AD9833 project which now includes a MAX7219 based LED display. Code updated 10 July 2025. Code updated again 15 July 2025. You can find it under the Gallery menu.
March 2025 In something of a "Seniors Moment", I forgot to update the homebrew menu and this section relating to a project I did late 2024. That project is an update of one from the RSGB Radcom magazine of Sept 1999 - 'Turn Your Dip Meter into a Signal Generator'. Presented here as 'Grid Dip Meter (GDO) Add on' under the Homebrew menu.
November 2024 Phillipe F6ETI has done some serious testing on the Noise Canceller and shown it works up to 72MHz and is usable with some loss at 145MHz. Links to his website with photo's, video's and description of the testing on the Noise Canceller page.
Privacy Policy uploaded. GPDR and all that stuff In accordance with various bits of legislation around the world, either currently in force, about to come into force or proposed, you will now find that annoying "We use cookies" notice at the top of this website. The full Privacy Policy is available at the Privacy Policy link in the footer at the bottom of the page. (If you don't know what GPDR is, Google it. Real scary shit for ANYBODY with a web presence.)
3d Printed Box for the VK5TM Noise Canceller
A 3d printed box for the Noise Canceller courtesy of Gary VK6GS
First up, it is important to note that the files presented here are for the original pcb which was 96 x 52mm, but those with the know-how should be able to easily modify them for the new pcb - 100 x 55mm.
I will be the first to say I have little knowledge of 3d printing, although I did try to order a printer a little while ago to learn about the process (the Creality website let me get to the end of the checkout process and then politely told me they didn't ship to South Australia - morons).
So, below are the pictures and files that Gary sent me, with permission to post them here. He did say that he used small magnets in the corners to hold the lid on.
Update - a note from Gary - "The magnets came from Ebay - 100x Super Strong Round Disc Magnets Rare-Earth Neodymium Magnet Cuboid Cylinder size 4mm x 4mm (actual size was 4mm x 3.69) I used 8, but be sure they are inserted with correct polarity so as to attract and not repell!!"
(Click pictures for larger view. Click again to close.)
Downloads
As with all information and files on my website, these files are for personal, non-commercial use only. I have removed the files for the box as they are not suitable for the current version of the pcb.
