I think a lotta people just removed and by-passed the signal overload bulb because of poor contact. I have one on the slab right now, and it has no bulb.
Also, about 99% of everything I know about Drake Transceivers I got from Garey and others on this reflector over the years !!! They are great teachers. mark ----- Original Message ---- > From: AD5VJ Bob <rt...@sbcglobal.net> > To: k4...@mindspring.com; Drakelist <drakelist@zerobeat.net> > Sent: Sun, January 10, 2010 9:17:41 PM > Subject: Re: [Drakelist] TR-3 > > Hi Garey > > The bulb you are showing is not there. Could that be a problem? > > Bob AD5VJ > > > -----Original Message----- > > From: Garey Barrell [mailto:k4...@mindspring.com] > > Sent: Sunday, January 10, 2010 9:14 PM > > To: AD5VJ Bob; Drakelist > > Subject: Re: [Drakelist] TR-3 > > > > Bob - > > > > Attached is the page from my CD with the relay contacts identified. > > Should help you find what you need to check. > > > > 73, Garey - K4OAH > > Glen Allen, VA > > > > Drake 2-B, 4-B, C-Line& TR-4/C Service Supplement CDs > > > > > > AD5VJ Bob wrote: > > > Hi Mark > > > > > > Yes I can rx both usb and LSB with no problem. > > > > > > The rig is supposed to switch to the sideband appropriate for the > > > band which it does on all bands except for 40 meters. On 40 > > it goes into usb not LSB for some reason and I have to switch > > it to X in order to get the LSB signals off of 40 meters. > > > > > > Does the relay only have the upper contacts. I can see them moving > > > from the top after taking the top off, or do I have to take > > the relay out in order to clean any at the bottom of the relay. > > > > > > Bob AD5VJ > > > > > > > > >> -----Original Message----- > > >> From: Mark Nace [mailto:n5...@swbell.net] > > >> Sent: Sunday, January 10, 2010 6:44 PM > > >> To: AD5VJ Bob; Drakelist@zerobeat.net > > >> Subject: Re: [Drakelist] TR-3 > > >> > > >> Bob, > > >> I would first turn everything off, unhook the TR-3 from the power > > >> supply, and look at the frame T/R relay and make sure the contacts > > >> are clean. Once they are clean, I always do some continuity > > >> measurements on the XMIT and RCV cathode lines to make sure they > > >> really are making good contact. If this is a no-go, make sure the > > >> relay tube is actually energizing the relay coil. Beyond that, if > > >> the 9 MHz BFO is not being shifted into the SSB filter passband > > >> (upper sideband filter I think), then there will be no > > drive at all. > > >> Are you able to receive upper and lower sideband QSO's okay? > > >> > > >> Others will probably have more and better advice... > > >> > > >> 73 > > >> Mark > > >> N5KAE > > >> > > >> > > >> > > >> > > >> ----- Original Message ---- > > >> > > >>> From: AD5VJ Bob > > >>> To: Drakelist@zerobeat.net > > >>> Sent: Sun, January 10, 2010 6:23:34 PM > > >>> Subject: [Drakelist] TR-3 > > >>> > > >>> I have a TR-3 and it is working fb on rx, except when > > going to the > > >>> procedures for tuning while using a dummy load as the > > >>> > > >> antenna, on page > > >> > > >>> 17 of the manual after presetting the controls as > > indicated, when I > > >>> get down to the: > > >>> > > >>> 'advance the XMTR gain control clockwise until the plate > > >>> > > >> amperes meter > > >> > > >>> moves up scale slightly from idling current' > > >>> > > >>> It does not move up scale and I have no output when the function > > >>> switch is set to X-CW per two different watt meters I have > > >>> > > >> put inline > > >> > > >>> with the dummy load. > > >>> > > >>> All the tubes light up and seem to be functioning properly. > > >>> > > >>> Any ideas? > > >>> > > >>> Bob AD5VJ > > >>> > > > > > > > > _______________________________________________ > 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
