Yeah there is not even the bulb holder in there. It looks like it has been hard wired to the relay.
There is a small coax coming up from the underside. According to Garey's picture of the relay, the center conductor is soldered directly to 'RX ANT' the shield is soldered directly to ground. Bob AD5VJ > -----Original Message----- > From: Mark Nace [mailto:[email protected]] > Sent: Sunday, January 10, 2010 9:37 PM > To: AD5VJ Bob; [email protected]; Drakelist > Subject: Re: [Drakelist] TR-3 > > 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 <[email protected]> > > To: [email protected]; Drakelist <[email protected]> > > 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:[email protected]] > > > 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:[email protected]] > > > >> Sent: Sunday, January 10, 2010 6:44 PM > > > >> To: AD5VJ Bob; [email protected] > > > >> 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: [email protected] > > > >>> 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 > > [email protected] > > http://mailman.zerobeat.net/mailman/listinfo/drakelist > _______________________________________________ Drakelist mailing list [email protected] http://mailman.zerobeat.net/mailman/listinfo/drakelist
