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Re: [BITX20...build idea
Saved that site. But on that page they only have
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Push-On Knobs - "D" Shaft which means 1/4-in "bore" or hole and I did not see one for a smaller shaft. May on another page. Thanks for the website. May come in handy some day. Bob ¡ª KK5R -------------------------------------------- On Wed, 12/19/18, Gordon Gibby <ggibby@...> wrote:
Subject: Re: [BITX20] [BITX20...build idea To: "[email protected]" <[email protected]> Cc: "Bob Lunsford via Groups.Io" <nocrud222@...> Date: Wednesday, December 19, 2018, 2:10 PM Knobs with all different sizes of bore... Or fill 1/4 knob with epoxy after greasing the set screw and all the way in; ?remove set screw after hardening , center drill to whatever size you prefer...... On Dec 19, 2018, at 13:01, Ian Reeve <ian.radioworkshop@...> wrote: the knobs can be found at radio rallies or hamfest but much easier to change for a standard sized pot of the correct value.You could also at a pinch pad out the thin shaft by wrapping with electrical tape or similar.I used one with the split splines shaft type commonly found on all suppliers.? Ian M0IDR Get Outlook for Android From: [email protected] <[email protected]> on behalf of iz oos <and2oosiz2@...> Sent: Wednesday, December 19, 2018 5:46:32 PM To: [email protected] Cc: Bob Lunsford via Groups.Io Subject: Re: [BITX20] [BITX20...build idea ? I couldn't find the right volume knob too. So I ended up finding those wire connectors with two vertical screws. In the end, admittedly it is a bit ugly, but does well the job. Il 19/dic/2018 14:09, "Rajan Krs via Groups.Io" <rajankrs@...> ha scritto: On Wed, 19 Dec 2018 at 8:19 AM, Bob Lunsford via Groups.Io <nocrud222@... > wrote: I saw somewhere a comment about the knobs. The encoder knob is not a problem since it has a pretty much standard size shaft diameter. However, the volume control shaft is smaller. I've seen knobs on old clock radios that are this diameter size but when I could not lay my hands on the right knob immediately, I began to wonder what I could use in the meantime I used a twist-on wirenut designed for large size wires. It is yellow in color ¡ª colors denote splice size. Twisting it on the shaft provides a usable knob for the volume control knob. I suggest using some caution when putting the wirenut on the shaft, though, no need for it to be gorilla tight. Make it tight enough only to turn radio on and off. Also, if the wirenut "knob" is not straight on the shaft, it is easy to move it to the proper position and make it straight on the shaft and more what one would expect of a knob. Sure, you can go to Mouser and sqqa ASelect parts to one's heart's content but this "fix" allows immediate use even if waiting for that Mouser package. For me, I want a usable radio and not a display model even though I want it to look good. This temporary "fix: works for me. Hope this helps someone. Bob ¡ª KK5R |
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Re: [BITX20...build idea
When I'm building and need an item that is not handy,
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the first thing I do is look around to see what I already have to use in the old experimenter's tradition. I thought about the shrink tubing idea ¡ª it's a good one but figured I'd need several layers to make it fit into a standard knob's hole. While I was looking around, I saw the wirenuts. I did not immediately use one for this but then grabbed one to try it. It only took a couple of seconds and voila, it was all done and not worth looking around for some other "fix." The next hamfest will find such a knob on the list for what I'll need to bring back home. I know i have that kind of knob in a container here somewhere and may find it before then, though. However, because the layout on my radio has the other connectors plugged into the front panel, such as the Microphone plug, the volume control knob sticking out farther makes it easier to use. Therefore, I'm thinking this is a good way to go, at least for now. When I go show off the radio, if anyone comments on the way I did the knob, I'll tell them to go buy a UBITX of their own and do it the way THEY want it to be. Ha Bob ¡ª KK5R -------------------------------------------- On Wed, 12/19/18, Ted via Groups.Io <k3rta@...> wrote:
Subject: Re: [BITX20] [BITX20...build idea To: "[email protected]" <[email protected]> Date: Wednesday, December 19, 2018, 2:00 PM A short length of heat-shrink tubing, just length of the shaft and a size that will shrink nice & tight, will usually take up the slack between this shaft size and a more standard 1/4" knob opening. -ted |
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Re: [BITX20...build idea
The wirenut I used is the twist-on type. No screws. But I don't
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know what you are using but if it works for you, good. I also only have syringes for diabetes that don't seem appropriate for making knobs. They are clear white and I can see that the yellow "fix" knob is better. I also wondered about some bottle lids and a hole forming shaft that is "potted" with some kind of epoxy or heat stick glue but the wirenut won out so that thought is nothing more than a remote memory now. Bob ¡ª KK5R -------------------------------------------- On Wed, 12/19/18, iz oos <and2oosiz2@...> wrote:
Subject: Re: [BITX20] [BITX20...build idea To: [email protected] Cc: "Bob Lunsford via Groups.Io" <nocrud222@...> Date: Wednesday, December 19, 2018, 12:46 PM I couldn't find the right volume knob too. So I ended up finding those wire connectors with two vertical screws. In the end, admittedly it is a bit ugly, but does well the job. Il 19/dic/2018 14:09, "Rajan Krs via Groups.Io" <rajankrs@...> ha scritto: On Wed, 19 Dec 2018 at 8:19 AM, Bob Lunsford via Groups.Io<nocrud222@... > wrote: I saw somewhere a comment about the knobs. The encoder knob is not a problem since it has a pretty much standard size shaft diameter. However, the volume control shaft is smaller. I've seen knobs on old clock radios that are this diameter size but when I could not lay my hands on the right knob immediately, I began to wonder what I could use in the meantime I used a twist-on wirenut designed for large size wires. It is yellow in color ¡ª colors denote splice size. Twisting it on the shaft provides a usable knob for the volume control knob. I suggest using some caution when putting the wirenut on the shaft, though, no need for it to be gorilla tight. Make it tight enough only to turn radio on and off. Also, if the wirenut "knob" is not straight on the shaft, it is easy to move it to the proper position and make it straight on the shaft and more what one would expect of a knob. Sure, you can go to Mouser and sqqa ASelect parts to one's heart's content but this "fix" allows immediate use even if waiting for that Mouser package. For me, I want a usable radio and not a display model even though I want it to look good. This temporary "fix: works for me. Hope this helps someone. Bob ¡ª KK5R |
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Re: designer mods
RE " I would agree that I would still purchase the kit if it was listed on the HF Signals site as a "kit" that will need to be upgraded. I have gone back and re-read the home page, and there is no reference to the need to be modified, nor even that anything other than assembly being required."
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I put emphasis on the word "hackable" as seen in various forms on the UBITIX website. This, to me, means that it is not legally usable unless it is "hacked" or modified to meet spec. It seemed that heavy emphasis was on the experimental side of the kit. I use mine now for listening but will be more into the transmit acceptability when I get ready to transmit and if this means a box connected to the antenna jack with a series of low pass filters to make it right, then that will be done. I leave the serious hacking to others who seem to see this as a challenge. I also read all the comments from the group and if there is a fix that nails it, I will be interested. Meanwhile, if it takes some more filtering on the output, I will do this with the idea that most of my activity is on 40 and 80 meters with 17M visited occasionally. Bob ¡ª KK5R -------------------------------------------- On Tue, 12/18/18, Evan Hand <elhandjr@...> wrote:
Subject: Re: [BITX20] designer mods To: [email protected] Date: Tuesday, December 18, 2018, 10:09 PM Since I have been monitoring all of the Bitx threads (only for the last 3 months), I have come to understand that the uBitx is a kit that really needs to be worked on to make fully "legal" in the USA.? I would agree that I would still purchase the kit if it was listed on the HF Signals site as a "kit" that will need to be upgraded.? I have gone back and re-read the home page, and there is no reference to the need to be modified, nor even that anything other than assembly being required. Until the production versions include the modifications needed to be legal, I think that there should be a "modifications may be required" type of warning on the web page.? After all, even hams such as myself who are willing to modify (yes, may even enjoy it) would not have all of the needed equipment to verify that the rig will be operating within legal requirements.? They may, as am I, be looking to use it as a base that other kits, like a linear, will be added to later, and have a self built rig (not quite home brew) that they can be proud of. I am very pleased with the purchases that I have made, however I do see others' points on the need to have a clear way to make it right.? From the information on this site I believe that those changes are now known and documented.? In my opinion the new kits should have the parts and directions to make it legal.? New product boards should use the correct relays, as that is only a parts issue, and include the two wound toroids and cap to correct the spurs issue.? This would be until the board layout can be changed and the fix included in the board layout.? Also, documentation on the fixes should be on the HF Signals web site so hams do not need to go searching all over the web to find the corrections. I would request that others go back and read the "advertising" page and comment back on their opinion.? Ashhar has done a good job in making this available, however there is a responsibility to take corrective action when a defect becomes known.?? RespectfullyEvanAC9TU |
Bob Lunsford
Ted