QSL QSL Garey! I tought that the function receiver ON was to be used only without the transmitter and that the external mute had to be always used. I rechecked today... I think it was the switch on the left side of the chassis for using external crystals or the internal LO that was not making a good contact. I tested anyway the receiver with a homebrew version of the Norcal generator that has two outputs at S9 and S3. The Norcal is a cheap version of the Elecraft generator and mine is a cheap version of the Norcal hi hi... however at S3 I could actually hear it quite clear... no damage a all. It was just a bad switch!
That's all for now!! 73 Frank IZ2OOS 2010/3/23 Garey Barrell <k4...@mindspring.com>: > Frank - > > > *That sort of operation should NOT harm your 2-C. I routinely monitor my > own signal with the R-4B connected exactly as you describe with the receiver > in ON. > > I suppose it's possible for a relay failure in the T-4XB to cause a problem, > but not likely if it loads into a dummy load ok. > > I'd recheck your control settings, checking the S-Meter zero, listening to > the Calibrator, etc. before thinking that the receiver was somehow damaged.* >> >> 73, Garey - K4OAH >> Glen Allen, VA >> >> Drake 2-B, 4-B, C-Line& TR-4/C Service Supplement CDs >> <www.k4oah.com> > > >> Hello everybody!!!! >> >> I think I made a mistake! Testing the T-4XB I had connected my 2-C to >> the RX connector of the T-4XB. A dummy load was connected to the >> antenna connector and a mute was connected betenn the 2-C and the >> T-4XB. The 2-C function was on EXT mute, but one time I set it on "ON" >> so the mute was excluded. That was by mistake and I tuned up the TX to >> the dummy load. I heard a strange strong buzzing sound from the >> receiver and the S-meter all the way up. Actually that happened even >> twice, also speaking at full modulation. Now I see at least 40db less >> in the second IF stage at 455Khz. At that moment I didn't really got >> the problem as I was all focused on the T-4XB. I also hoped that the >> relay was enough to save the RX and I thought that all the power would >> have been dissipated into the dummy load. >> >> Where should I check first? Tubes, or could also coils and preselector >> be damaged? >> >> 73, >> >> Frank IZ2OOS >> > > _______________________________________________ > Drakelist mailing list > Drakelist@zerobeat.net > http://mailman.zerobeat.net/mailman/listinfo/drakelist > _______________________________________________ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
