Hello Tom, most schoolbook class-E designs assume a DC feeding choke with infinite inductance i.e. a huge inductor that keeps the DC current constant without any RF ripple. This is of course totally
Hi Tom, the keyed PSU sounds like a good way to go considering your very slow keying speeds! I'm also attracted by the combination of simplicity and ultimate efficiency of single ended class E but ke
Yes, an impressive achievement indeed, congratulations to all involved! Wow is the word! The 24dB S/N ratio on Dex' signal exceeded all my expectations! 24 dB S/N is "armchair copy". It would be inte
May thanks for the files Paul! Yes. It will never become a popular "realtime chat mode" of course... Not exactly armchair copy but by looping the file a couple of times for "mental integration" I got
Hi, I just noticed that NXP has stopped production of the BF862 JFET. I need a couple of these but they seem to be out of stock everywhere. Does anyone on this list know where I can buy a dozen or tw
Hi Gentlemen, thanks for the hints! I had a look at eBay but I became a little suspicious... Some BF862 sellers mentions Zetex, who never made BF862 AFAIK, while some other sellers show pictures of t
Thanks Peter! I had a look at the diyaudio site and found a reference to this: https://www.nxp.com/docs/en/reference-manual/RFSAS20EDRM.pdf See table on page 71, obviously 2Ap and 2AW are both va
