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Pete KE9OA wrote:
If you ordered Schottky diodes, you ordered the wrong type. You need PIN diodes. 1N5767s would do the trick. It is worthwhile to change the audio coupling caps. Pete -------------------------------------------- I haven't ordered anyhting yet, due to house and auto insurance falling due, I have limited non essenital spending until June. And the first thing I plan to buy is a 455.1 500Hz CW filter.... I have read and re-read the Kiwa article many times in in the last few months. I had read about the Si to IN diode swap for the 8ve filters several years ago and had the good luck to be given 24 HP PIN diodes by a grad student. I had forgoten that I had even made the mod unitl after I purchased another R2000 from Frank C. And I was puzzled by the greater distortion in the AM band when listening to stations withen a few KHz of a power house. I initially worte it off as a result of Frank's removal of the LF/MW 1-dB attenuator. It wasn't until I opened my R2000 for a more complete logic IC bypass mod that I saw the HP PINs and remembered that I had changed to them. A mind is a terrible thing to misplace Any Idea why Kiwa spec'ed PINs for one switch and Shottkys for the other? And any links to improved "low distortion" diode detectors, And any links to any "simple" synch detectors? Feel free to email me at r2000swler at hotmail dot com Sorry for so many questions bunched in one post. Terry |
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Question for Pete KE9OA | Shortwave |