Hi Don, Can't aford Dayton this year... More comments below..
On Fri, 15 May 2009 09:26:26 -0500, Don Cunningham wrote: >First, one I bought, a very nice, late serial numbered TR7 (loaded!!) puts >out about 200w PEP on 160m. I have not tried it on any other bands, but >that seemed a bit high to me. Yes, that is high. A properly working and adjusted TR7 should do 140-150 watts into a dummy load on 40 meters, less on other bands. The ALC is either cranked up, or not working properly. Running at less power than the transistors are capable of contributes to the stability and reliability of the PA deck. >When I go to put the rig in general coverage to get to the adjustment freqs, >the up/down buttons will not move the freq up and down in 500 cycle ranges >like it should. Also, random segments will not light up on the readouts. I >first thought it was bad readouts, but the segment will light in some digits >and not in others where it should be present. Given that you said the radio was pretty dirty, the above problems could be related to grunge or oxidation in the pin connectors. Before you spend any time troubleshooting, I would advise pulling all of the boards and cleaning the Molex connectors and also the smaller brown connectors that plug in to the DR7. A sparing application of DeOxit to the pins afterwards wouldn't hurt, either. Good luck, and let us know what you find! 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
