On Sun, 01 Mar 2009 14:35:30 -0500, Garey Barrell wrote: >There was a blurb about a "keying" spike when the TR-7 was >first powered on in the early units, but I didn't think it applied to CW >or SSB operation.
The power on spike, I think, was related to the VOX circuit. It is fixable with a mod published by GW4ALG, but only if the parent board trace cut for allband transmit has not been made. But then, you know all this. :) I'm restating it for the benefit of newer members who may have missed those discussions. 73 -Jim -- Ham Radio NU0C Lincoln, Nebraska, U.S.S.A. TR7/RV7/R7A/L7, TR6/RV6, T4XC/R4C/L4B, NCL2000, SB104A, R390A, GT550A/RV550A, HyGain 3750, IBM PS/2 - all vintage, all the time! "Give a man a URL, and he will learn for an hour; teach him to Google, and he will learn for a lifetime." HyGain 3750 User's Group - http://groups.yahoo.com/group/HyGain_3750/ http://radiojim.exofire.net http://incolor.inetnebr.com/jshorney http://www.nebraskaghosts.org _______________________________________________ Drakelist mailing list [email protected] http://mailman.zerobeat.net/mailman/listinfo/drakelist
