tag:blogger.com,1999:blog-2085663464950730714.post4721821252247931345..comments2024-01-14T16:34:48.233+05:30Comments on Small Wonder QRP: VXOs-Simple Minimalist's Signal Sources.Kang.K.P.S.http://www.blogger.com/profile/15094158797900562489noreply@blogger.comBlogger2125tag:blogger.com,1999:blog-2085663464950730714.post-20489324076077510232017-07-23T16:48:32.118+05:302017-07-23T16:48:32.118+05:30Hi Bill, I am using the second harmonic of 3.58 MH...Hi Bill, I am using the second harmonic of 3.58 MHz for direct conversion designs to get them on forty.<br />Again I use few 5MHz crystals in parallel in bipolar circuit as super VXO to get my bitx to operate on the QRP segment of forty. But a 4.915MHz ceramic resonator from mouser can provide a much better coverage on forty.<br />Thanks for your interest in the post.<br />73s DE <br />-Kang.<br />Kang.K.P.S.https://www.blogger.com/profile/15094158797900562489noreply@blogger.comtag:blogger.com,1999:blog-2085663464950730714.post-58995385357741447522017-07-21T15:59:56.047+05:302017-07-21T15:59:56.047+05:30Great stuff! I put a link on the SolderSmoke blog....Great stuff! I put a link on the SolderSmoke blog. On the first circuit, for 7 MHz were you using ceramic resonators on 7 MHz or just taking the second harmonic from the 3.58 ceramic? Can you provide more info on the 5 MHz circuit for the BITX. Thanks and 73 Bill N2CQRBill Mearahttps://www.blogger.com/profile/07662500663603350847noreply@blogger.com