http://groups.yahoo.com/group/homebrewtransistorradios/ Homebrew Transistor Radios/Communication Sat, 23 Jan 2010 08:16:39 GMT http://groups.yahoo.com/group/homebrewtransistorradios/message/5110 http://groups.yahoo.com/group/homebrewtransistorradios/message/5110 Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the homebrewtransistorradios group. File Fri, 22 Jan 2010 19:13:14 GMT Steven C http://groups.yahoo.com/group/homebrewtransistorradios/message/5109 http://groups.yahoo.com/group/homebrewtransistorradios/message/5109 All, As with all shortwave projects, converter projects require substituting currently-available coils for those recommended a couple decades back. Each Fri, 22 Jan 2010 19:02:08 GMT Steven C http://groups.yahoo.com/group/homebrewtransistorradios/message/5108 http://groups.yahoo.com/group/homebrewtransistorradios/message/5108 Dave et al, OK. I have your LF-to-160-meter converter schematic. The SA602 IC certainly simplifies converter building. That's good information on gain. In Fri, 22 Jan 2010 18:35:34 GMT Dave http://groups.yahoo.com/group/homebrewtransistorradios/message/5107 http://groups.yahoo.com/group/homebrewtransistorradios/message/5107 ... It's there, in the "files" section of the group, under "frequency converters", with the name "freqconvSA602.png". ... You can sometimes throttle the gain Fri, 22 Jan 2010 18:09:45 GMT Steven C http://groups.yahoo.com/group/homebrewtransistorradios/message/5106 http://groups.yahoo.com/group/homebrewtransistorradios/message/5106 Dave et al, Dave, Thank you for the post. I hope you'll find time to draw and post that LF to 160-meter converter. Dave makes a good point about balanced Fri, 22 Jan 2010 17:49:15 GMT Steven C http://groups.yahoo.com/group/homebrewtransistorradios/message/5105 http://groups.yahoo.com/group/homebrewtransistorradios/message/5105 All, With so many critical communications and navigation functions transferred to UHF and microwave satellite communications, members here may wonder why the Fri, 22 Jan 2010 15:54:50 GMT Dave http://groups.yahoo.com/group/homebrewtransistorradios/message/5104 http://groups.yahoo.com/group/homebrewtransistorradios/message/5104 ... Some of the things to think about when considering plans are whether you want to use active discrete components (transistors), inactive discrete components Fri, 22 Jan 2010 15:42:28 GMT Dave http://groups.yahoo.com/group/homebrewtransistorradios/message/5103 http://groups.yahoo.com/group/homebrewtransistorradios/message/5103 ... Congratulations to all involved. ... Conceptually, a frequency converter is extremely easy. Practically, the various requirements impose some design Fri, 22 Jan 2010 06:45:45 GMT Steven C http://groups.yahoo.com/group/homebrewtransistorradios/message/5102 http://groups.yahoo.com/group/homebrewtransistorradios/message/5102 All, Some converter-building tips: Find at least three converter project plans meeting your needs. The plans you don't use provide ideas for experimenting. Fri, 22 Jan 2010 04:44:28 GMT Steven C http://groups.yahoo.com/group/homebrewtransistorradios/message/5101 http://groups.yahoo.com/group/homebrewtransistorradios/message/5101 All, As my grandson Sachal arrived prematurely (baby, mother, and father doing well), my daughter had not prepared some things a new baby needs. I figure I'll Fri, 22 Jan 2010 03:11:52 GMT http://groups.yahoo.com/group/homebrewtransistorradios/message/5100 http://groups.yahoo.com/group/homebrewtransistorradios/message/5100 Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the homebrewtransistorradios group. File Thu, 21 Jan 2010 21:24:54 GMT Steven C http://groups.yahoo.com/group/homebrewtransistorradios/message/5099 http://groups.yahoo.com/group/homebrewtransistorradios/message/5099 All, Those who don't get the ARRL newsletter can read about amateur radio efforts in Haiti at http://www.arrl.org/news/stories/2010/01/18/11293/?nc=1 It's a Thu, 21 Jan 2010 16:51:00 GMT Steven C http://groups.yahoo.com/group/homebrewtransistorradios/message/5098 http://groups.yahoo.com/group/homebrewtransistorradios/message/5098 Dan, Thank you. For those who need the links on separate lines: North American Shortwave Association http://www.naswa.net/ Shortwave Stuff Thu, 21 Jan 2010 14:59:13 GMT Dan Ferguson http://groups.yahoo.com/group/homebrewtransistorradios/message/5097 http://groups.yahoo.com/group/homebrewtransistorradios/message/5097 If you're tuning the shortwave broadcast bands you might be interested in the Combined Schedules Excel spreadsheet I compile for NASWA (North American Thu, 21 Jan 2010 09:23:42 GMT Steven C http://groups.yahoo.com/group/homebrewtransistorradios/message/5096 http://groups.yahoo.com/group/homebrewtransistorradios/message/5096 Randall, Fine business on the Drake?good products. I sometimes use a Drake 2B receiver here. In the 1960s this area had a choice of 6-meter technical