Question 1 Dont know Question 2 Wondered the same thing myself Question 3 Dont know Question 4 You need to keep an eye on the plate current and make sure it stays below the recommended ma, otherwise it doesn't matter.
Bob AD5VJ > -----Original Message----- > From: [email protected] > [mailto:[email protected]] On Behalf Of Mark Nace > Sent: Wednesday, November 25, 2009 8:50 PM > To: [email protected] > Subject: [Drakelist] Several Questions for Drakers > > I have saved up a few mundane questions for the Drake folks. > Instead of separate emails, I will just ask them all in one: > > 1. The early AC-3 power supply had some sort of choke filter > for the +650 volt section, right after a bridge rectifier > looks like. My buddy has one of these actually. can someone > explain it briefly, and tell why it was changed out (cost perhaps)? > > 2. In the TR-3, does anyone know why it was designed to > require going back and forth from SSB to Xcw to transmit and > receive CW? I got out one of my TR-3's and re-discovered > this, and after looking at the manual, found it was true. > Pretty inconvenient, and probably pretty hard on the switch > over time. > > 3. When putting new diodes in an AC-3 or AC-4, is it > recommended to add speed-up caps and equalizing resistors > across the diodes? > > 4. When working across a band on TR-3's or TR-4's, I usually > just peak the Rf tune, but wonder how far one should go > before re-dipping again in the same band. > > Thanks for listening, and thanks for all the good advice over > the years. > > 73 > Mark > N5KAE (a fellow Drake Transceiver hobbyist) > > _______________________________________________ > Drakelist mailing list > [email protected] > http://mailman.zerobeat.net/mailman/listinfo/drakelist > _______________________________________________ Drakelist mailing list [email protected] http://mailman.zerobeat.net/mailman/listinfo/drakelist
