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Fred: [cw_bugs] Re: Vibroplex contacts

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  • k4oso
    Thanks Merv, But...I think your explanation provides the reason most of us don t do it. 73, Milt k4oso
    Message 1 of 19 , Jul 8, 2011
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      Thanks Merv,
      But...I think your explanation provides the reason most of us don't do it.
      73, Milt k4oso

      --- In cw_bugs@yahoogroups.com, Merv Schweigert <k9fd@...> wrote:
      >
      >
      >
      > For contacts I have some silver "rod" and turn it in the lathe to the
      > correct
      > size, almost all bug contacts are press fit into the screw, easy to
      > turn up
      > a batch of contacts and replace them on older bugs. Same with the
      > contacts on the dit spring and the dash lever, grind off the rear and punch
      > off the old contact, then just "rivit" the new ones back in place.
      >
      > 73 Merv K9FD/KH6
      >
      >
      > >
      > >
      > >
      >
    • WILLIS COOKE
      Instead of foam I use the small soft plastic pieces sold for non skid feet at Wal-Mart and other sundry stores.  They are self adhesive and hold up longer
      Message 2 of 19 , Jul 8, 2011
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        Instead of foam I use the small soft plastic pieces sold for non skid feet at Wal-Mart and other sundry stores.  They are self adhesive and hold up longer than foam.  If you select a thickness that does not quite touch the spring arm they make a very nice damper.
         
        Willis 'Cookie' Cooke
        K5EWJ & Trustee N5BPS, USS Cavalla, USS Stewart



        From: Merv Schweigert <k9fd@...>
        To: cw_bugs@yahoogroups.com
        Sent: Fri, July 8, 2011 10:52:20 AM
        Subject: Re: Fred: [cw_bugs] Re: Vibroplex contacts

         





        *  Old dit springs lose their tension, spring, and you can often end problems creating good dits by replacing it.  i had a bug (1908) with which the first dit was almost always two dits, split in other wrods, until I replaced the dit spring with a new one after which it made perfect dits.

        Hope these tid-bits are helpful steepening your experiential curve

        73,  FD - kt5x
        One trick I use on old bugs like that is to put  a very small piece of foam, 
        experiment with different densities,  between the dit spring,  it makes up
        for some lost tension,  and also "cushions" the spring from bouncing as
        much.  Makes for very nice dits when adjusted properly.

        For contacts I have some silver "rod" and turn it in the lathe to the correct
        size,  almost all bug contacts are press fit into the screw,  easy to turn up
        a batch of contacts and replace them on older bugs.  Same with the
        contacts on the dit spring and the dash lever,  grind off the rear and punch
        off the old contact,  then just "rivit" the new ones back in place. 

        73 Merv K9FD/KH6



      • Fred Maas
        Irrellevant I suppose, but I LOVE your call sign. All of it. The K9 (canine), the FD, field day or Fred, and the /KH6 73, Fred FD also; W5YA / qrp, and
        Message 3 of 19 , Jul 8, 2011
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          Irrellevant I suppose, but I LOVE your call sign.  All of it.  The K9 (canine), the FD, field day or Fred, and the /KH6
           
          73,  Fred "FD"
           
          also; W5YA / qrp, and WS0TA on SOTA peaks
           
          73 Merv K9FD/KH6
        • Kate Hutton
          I think my dog thought K9FD was what it was all about, since he got to go & hang out at Field Day. The food he begged & stole was the best, apparently. 73
          Message 4 of 19 , Jul 8, 2011
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            I think my dog thought K9FD was what it was all about, since he got to go & hang out at Field Day.  The food he begged & stole was the best, apparently.

            73 Kate K6HTN

            On Fri, Jul 8, 2011 at 10:33 AM, Fred Maas <just.one.hill@...> wrote:


            Irrellevant I suppose, but I LOVE your call sign.  All of it.  The K9 (canine), the FD, field day or Fred, and the /KH6
             
            73,  Fred "FD"
             
            also; W5YA / qrp, and WS0TA on SOTA peaks
             
            73 Merv K9FD/KH6



          • Merv Schweigert
            Tnx Fred, I like it on CW of course. Got it back in the 70 s when incentive license came along. For a while it seemed to long for Dxing so changed to KH7C
            Message 5 of 19 , Jul 8, 2011
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              Tnx Fred,  I like it on CW of course.  Got it back in the 70's when incentive license came
              along.  For a while it seemed to "long" for Dxing so changed to KH7C for a couple years,
              took the old call back before it went on the lottery.  Probably move back to the mainland
              soon, so will need it then.  Used to work field day a lot, but not in recent years.  No one
              on this island is active and FD by yourself is not much fun.
              73 Merv K9FD/KH6  Molokai Island, 
              Irrellevant I suppose, but I LOVE your call sign.  All of it.  The K9 (canine), the FD, field day or Fred, and the /KH6
               
              73,  Fred "FD"
               
              also; W5YA / qrp, and WS0TA on SOTA peaks
               
              73 Merv K9FD/KH6

            • Merv Schweigert
              Sounds like your dog and I would get along well, I like the food at field day as well usually. A few brews and some BBQ is FD at the best. 73 Merv K9FD
              Message 6 of 19 , Jul 8, 2011
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                Sounds like your dog and I would get along well,  I like the food at field day
                as well usually.  A few brews and some BBQ is FD at the best.
                73 Merv K9FD
                I think my dog thought K9FD was what it was all about, since he got to go & hang out at Field Day.  The food he begged & stole was the best, apparently.

                73 Kate K6HTN

                On Fri, Jul 8, 2011 at 10:33 AM, Fred Maas <just.one.hill@...> wrote:


                Irrellevant I suppose, but I LOVE your call sign.  All of it.  The K9 (canine), the FD, field day or Fred, and the /KH6
                 
                73,  Fred "FD"
                 
                also; W5YA / qrp, and WS0TA on SOTA peaks
                 
                73 Merv K9FD/KH6




              • vk4wm
                Ok thanks Milt, you are right the V s work, everytime I sit down for a practice session the first series dont always pan out right then I settle in to it and
                Message 7 of 19 , Jul 9, 2011
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                  Ok thanks Milt, you are right the "V"'s work, everytime I sit down for a practice session the first series dont always pan out right then I settle in to it and get some sort of rythm, after a while I find doing sequence's of a u v 4 helps too, my Aussie callsign exercise's the v 4 and for good measure w !!

                  like the old song said "it dont mean a thing if you aint got that swing"

                  73 Wade VK4WM
                  SKCC # 5621

                  --- In cw_bugs@yahoogroups.com, "k4oso" <k4oso@...> wrote:
                  >
                  > Wade,
                  > It is quite easy once you catch on to the fact that sending either dots or dashes on a bug is not a "static", either-or operation. The process of sending is a fluid, swing operation. While you are pressing the dot lever, your dash finger is moving away from the paddle (to some degree) so that it starts back toward the dash lever in the rhythm in which you are sending. It might sound complicated, but think of it as a pendulum operation with varying delays, depending on the character. Only if you are sending the "error" sign (........) or a long dash (daaaaaaaaah) is it a static operation. In my opinion, practicing with "ditdahditdahditdah" will not help your problem. I suggest you practice sending a continuous string of "V"'s until you can feel the fluidity of the operation that is necessary to overcome the problem. Once you feel this rhythm, you will be on the road to bug mastery. Good luck, and feel free to mention any other bug-related issues.
                  > 73, Milt K4OSO
                  > A serious bug nut
                • vk4wm
                  ... Thanks Fred, the obvious escaped me but I hope I would have thought of it eventually :-) that would work, by holding the post and turning the screw with
                  Message 8 of 19 , Jul 9, 2011
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                    > * It doesn't work as well, but none the less seems to dome, just hand
                    > holding the contact imbedded in a screw still mounted on a post, to a soft
                    > polishing wheel.

                    Thanks Fred, the obvious escaped me but I hope I would have thought of it eventually :-) that would work, by holding the post and turning the screw with the contact against the mop the post will act very nicely as the pivot point to get a nice circular motion.


                    > * Modern solid state rigs are so responsive that they actually try to follow
                    > the scratches or bounces of the contacts. Grid block or cathode keying of
                    > the older tube radios did not. Large loading capacitor will overcome this
                    > aspect.

                    of course, been a while since I had to think about that, sensitive they damn well are!

                    > * Old dit springs lose their tension, spring, and you can often end
                    > problems creating good dits by replacing it. i had a bug (1908) with which
                    > the first dit was almost always two dits, split in other wrods, until I
                    > replaced the dit spring with a new one after which it made perfect dits.

                    My Champion is a 1951 model, now that with help from here and elsewhere I have it adjusted reasonably ok there is no evidence that I can detect that might indicate the u spring is weak.


                    > Hope these tid-bits are helpful steepening your experiential curve
                    >
                    > 73, FD - kt5x

                    Steepening my experimental curve !! and I thought I'd just got over the first hill !! but it depends how you mean it, steep up or steep down 8-)

                    73 Wade VK4WM
                  • vk4wm
                    Thanks for the reply Merv, the silver rod would be a bit thin on the ground around here I would imagine, I have a work and play background in precision
                    Message 9 of 19 , Jul 9, 2011
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                      Thanks for the reply Merv, the silver rod would be a bit thin on the ground around here I would imagine, I have a work and play background in precision machining so I probably would expect to make up contacts out of brass and tip the work end with hard silver solder, that should be a good test of my skills, these days I dont have access to Oxy/acetylene equipment, a micro size jewellers torch would have been perfect for this job, bottle hire is expensive here but I have a MAPP gas torch that gets enough heat to silver solder quite well, ordinary propane would do something this size easily too but the MAPP gives me more control because of the flame profile out of the torch for small items, it would be easy to end up with a molten blob of brass/silver solder alloy! now there's a thought, just melt silver solder into a small metal tube to form a solid rod and machine the outer metal away !! genius! (my xyl reckons that's doubtful)

                      I now own another bug, an Australian made Simplex Auto, sadly the flat spring steel blade that has the dot contact on it has fractured near the mounting post and is now too short, it was two inches long, now it is an inch and three quarter long, if I cannot find a length of spring steel the right thickness and length the only method of repair I can see is to rivet an extension onto the end and hope it works ok but I will try hard to find the spring steel, I am ripping apart every redundant printer I have in my shed to see if there is anything resembling what I want.

                      73 Wade VK4WM
                      SKCC # 5621
                      >
                      > For contacts I have some silver "rod" and turn it in the lathe to the
                      > correct
                      > size, almost all bug contacts are press fit into the screw, easy to
                      > turn up
                      > a batch of contacts and replace them on older bugs. Same with the
                      > contacts on the dit spring and the dash lever, grind off the rear and punch
                      > off the old contact, then just "rivit" the new ones back in place.
                      >
                      > 73 Merv K9FD/KH6
                      >
                      >
                      > >
                      > >
                      > >
                      >
                    • Pete Ferrand
                      Hi Wade: I ve never had a Simplex unfortunately but years ago I hit upon a solution to the spring steel issue that would probably work. Just head for the
                      Message 10 of 19 , Jul 9, 2011
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                        Hi Wade:

                        I've never had a Simplex unfortunately but years ago I hit upon a solution to the spring steel issue that would probably work. Just head for the nearest dollar shop and but a retracting tape measure. The inner core is made of actual spring steel that I've used for a variety of things, including today's project of replacing the mainspring on a 1919 vintage Viboplex. I've used the marked part of the tape for contacts of various projects as well. The fabric measuring tapes won't work :)

                        And Rich...I use the same technique of keying a keyer, in this case an AEA CK-1. In addition to the advantages you name, it gives me a uniform sidetone for every transmitter.

                        Those without a keyer at hand can just use a relay powered through the key; the relay's inertia will handle the scratchy dits. The slower you send the larger the appropriate relay :)

                        -Pete
                        WB2QLL
                        Somers, WI




                        -----Original Message-----
                        >From: vk4wm <vk4acb@...>
                        >Sent: Jul 9, 2011 9:34 PM
                        >To: cw_bugs@yahoogroups.com
                        >Subject: Fred: [cw_bugs] Re: Vibroplex contacts
                        >
                        >Thanks for the reply Merv, the silver rod would be a bit thin on the ground around here I would imagine, I have a work and play background in precision machining so I probably would expect to make up contacts out of brass and tip the work end with hard silver solder, that should be a good test of my skills, these days I dont have access to Oxy/acetylene equipment, a micro size jewellers torch would have been perfect
                      • Joseph L Pontek
                        I have read about these, but have yet to see a picture of one. I understand that they were on mainly ones made in Georgia that had the thinner bases, but have
                        Message 11 of 19 , Aug 30, 2011
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                          I have read about these, but have yet to see a picture of one.  I understand that
                          they were on mainly ones made in Georgia that had the thinner bases, but have
                          read where they were on some of the smaller thick bases as well.

                          Anybody know where I might find a picture of one?

                          161, Joe, Ronnie(Rowena), Marty & Sidney Pontek
                          P.O. Box 280
                          Dangriga
                          Stann Creek District
                          Belize
                          (Hopkins Village)
                          011-501-503-7346 Belize
                          011-501-666-3564 Belize (cellular)
                          903-424-4267 (My cellular when in Texas)
                          V31JP K8JP VP5/K8JP VP5JP K8JP/VA2
                          k8jp@...
                          FOC 1743, CWops 876, A1OP
                          SKCC 3171T, FISTS 7625 CC 951
                          LotW
                          Skype: v31joepalooka
                          http://www.justanswer.com/lp-1eh8-tool-repair 

                        • Andy Dickerson
                          Hi Joe, I haven t seen one, but it reminds me-- There will be a special Norcross Day on 8 October to commemorate the original Vibroplex factory location in
                          Message 12 of 19 , Aug 30, 2011
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                            Hi Joe,

                            I haven't seen one, but it reminds me--

                            There will be a special "Norcross Day" on 8 October to commemorate the original Vibroplex factory location in Norcross, Georgia (a suburb northeast of Atlanta).  I am not directly involved in that event because my speed isn't good enough (sending or receiving) to get on the air with my Vibroplex yet.  But there will be a special-event station on the air, and the really special treat is that there will be an ORIGINAL Norcross bug on the air, courtesy of KT5X I believe.

                            The North Georgia QRP Club will be the primary sponsor of the event and will supply most of the ops.  The details are still being worked out, but I know that the Norcross bug is now in hand!


                            73,
                            Andy KD4UKW




                            On Tue, Aug 30, 2011 at 5:14 PM, Joseph L Pontek <k8jp@...> wrote:
                             

                            I have read about these, but have yet to see a picture of one.  I understand that
                            they were on mainly ones made in Georgia that had the thinner bases, but have
                            read where they were on some of the smaller thick bases as well.

                            Anybody know where I might find a picture of one?

                            161, Joe, Ronnie(Rowena), Marty & Sidney Pontek
                            P.O. Box 280
                            Dangriga
                            Stann Creek District
                            Belize
                            (Hopkins Village)
                            011-501-503-7346 Belize
                            011-501-666-3564 Belize (cellular)
                            903-424-4267 (My cellular when in Texas)
                            V31JP K8JP VP5/K8JP VP5JP K8JP/VA2
                            k8jp@...
                            FOC 1743, CWops 876, A1OP
                            SKCC 3171T, FISTS 7625 CC 951
                            LotW
                            Skype: v31joepalooka
                            http://www.justanswer.com/lp-1eh8-tool-repair 


                          • Joseph L Pontek
                            Thanks, Andy. I had not heard about the event yet, but I will keep an eye out for announcements. I just acquired a 1955 Blue Racer Deluxe, but I won t see it
                            Message 13 of 19 , Aug 30, 2011
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                              Thanks, Andy.

                              I had not heard about the event yet, but I will keep an eye out for announcements.
                              I just acquired a 1955 Blue Racer Deluxe, but I won't see it until I go up to the states
                              in late October or early November and bring it down here.  I have three Originals
                              now and feeling much more comfortable with them.  I still stumble a bit when I switch
                              from the keyer to the bugs, but that is what I am working towards is the ability to switch
                              smoothly between them.

                              Thanks for the heads up and will look forward to hearing from them.  I did send an
                              e-mail to Fred, KT5X, but I think it was blocked by AOL.

                              161, Joe, Ronnie(Rowena), Marty & Sidney Pontek
                              P.O. Box 280
                              Dangriga
                              Stann Creek District
                              Belize
                              (Hopkins Village)
                              011-501-503-7346 Belize
                              011-501-666-3564 Belize (cellular)
                              903-424-4267 (My cellular when in Texas)
                              V31JP K8JP VP5/K8JP VP5JP K8JP/VA2
                              k8jp@...
                              FOC 1743, CWops 876, A1OP
                              SKCC 3171T, FISTS 7625 CC 951
                              LotW
                              Skype: v31joepalooka
                              http://www.justanswer.com/lp-1eh8-tool-repair 

                              On 8/30/2011 3:23 PM, Andy Dickerson wrote: Hi Joe,

                              I haven't seen one, but it reminds me--

                              There will be a special "Norcross Day" on 8 October to commemorate the original Vibroplex factory location in Norcross, Georgia (a suburb northeast of Atlanta).  I am not directly involved in that event because my speed isn't good enough (sending or receiving) to get on the air with my Vibroplex yet.  But there will be a special-event station on the air, and the really special treat is that there will be an ORIGINAL Norcross bug on the air, courtesy of KT5X I believe.

                              The North Georgia QRP Club will be the primary sponsor of the event and will supply most of the ops.  The details are still being worked out, but I know that the Norcross bug is now in hand!


                              73,
                              Andy KD4UKW




                              On Tue, Aug 30, 2011 at 5:14 PM, Joseph L Pontek <k8jp@...> wrote:
                               

                              I have read about these, but have yet to see a picture of one.  I understand that
                              they were on mainly ones made in Georgia that had the thinner bases, but have
                              read where they were on some of the smaller thick bases as well.

                              Anybody know where I might find a picture of one?

                              161, Joe, Ronnie(Rowena), Marty & Sidney Pontek
                              P.O. Box 280
                              Dangriga
                              Stann Creek District
                              Belize
                              (Hopkins Village)
                              011-501-503-7346 Belize
                              011-501-666-3564 Belize (cellular)
                              903-424-4267 (My cellular when in Texas)
                              V31JP K8JP VP5/K8JP VP5JP K8JP/VA2
                              k8jp@...
                              FOC 1743, CWops 876, A1OP
                              SKCC 3171T, FISTS 7625 CC 951
                              LotW
                              Skype: v31joepalooka
                              http://www.justanswer.com/lp-1eh8-tool-repair 


                            • Fred Maas
                              Yes, the Norcross bug of KT5X has arrived home, in Norcross, and is the hand of Dick, K2UFT. Yes, vibroplex made a thin base with an articulated arm. While
                              Message 14 of 19 , Aug 30, 2011
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                                Yes, the Norcross bug of KT5X has arrived home, in Norcross, and is the hand of Dick, K2UFT.
                                 
                                Yes, vibroplex made a thin base with an articulated arm.  While some think they were all made in Norcross, they were produced before Norcross, and very few bugs of any kind were produced in Norcross, so, who knows.  Here is a photo of one.
                                 
                                73,  Fred - KT5X
                                 
                                 

                                Thanks, Andy.

                                I had not heard about the event yet, but I will keep an eye out for announcements.
                                I just acquired a 1955 Blue Racer Deluxe, but I won't see it until I go up to the states
                                in late October or early November and bring it down here.  I have three Originals
                                now and feeling much more comfortable with them.  I still stumble a bit when I switch
                                from the keyer to the bugs, but that is what I am working towards is the ability to switch
                                smoothly between them.

                                Thanks for the heads up and will look forward to hearing from them.  I did send an
                                e-mail to Fred, KT5X, but I think it was blocked by AOL.

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