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.)
FT757 Battery Replacement
Replacing the battery in an FT757 in pictures
While hunting around the internet, I came across a document in French by Denis F4ANN about replacing the battery in an FT757 rig.
While maybe not homebrew strictly speaking, we are taking something apart, doing some soldering and putting it back together again (OK, technically it is 'repair work'). As I have an FT757 sitting on the shelf awaiting it's turn on the bench, I decided to translate it into English and put it into the 'information depository' for later. I also asked Denis's permission to put it on my website, which he agreed to. Rather than write it up as a web page, it is available to download as a pdf below. I figure others may want to store a copy locally rather than having to keep refering to a website they may forget where they saw it. One thing Denis did, was to replace the original battery:-
with this type:-
He also moved it to a more convenient location, should it ever need replacing again. This information may also be useful to anybody disassembling an FT757 for other repairs. Download the PDF file here (you will need to right click and "save link as" or what ever is required by your browser): FT757 Battery Replacement
