N5ARW <[EMAIL PROTECTED]> made an utterance to the drakelist gang ---------------------------------------------------------------------- I was very pleased to finally get a R7 this weekend, and I have a few questions for the group.
1) What are the differences between the R7 and the R7A. I know that the A included the noise blanker and the 500 cycle CW filter. This one has the NB and after a little surgery, it is now fully loaded with filters. Were there any circuit changes? What about the surge protection that was added to the antenna input on the TR7. Did the R7A have than change also? There is a nice discussion of the differences between the TR7 and TR7A on WB4HFN's web site. Is there a similar writeup about the R7? 2) The radio came with a 6KC AM filter installed. I read on JM Cherry's web site that the synchro-phase AM detector works best with the 4KC filter. Is it worth changing the filter? 3) I also have a 1979 version of the service manual. Were there different versions of the manual as there was for the TR7? Thanks & 73 -- James True N5ARW www.boatanchor.com in beautiful Hot Springs National Park, Arkansas ---------------------------------------------------------------------- Submissions: [email protected] Unsubscribe: [EMAIL PROTECTED] - unsubscribe drakelist in body Hopelessly Lost: [EMAIL PROTECTED] - help in body of message Zerobeat Web Page: www.zerobeat.net - sponsored by www.tlchost.net ----------------------------------------------------------------------
