Date   
Re: My µBITX in its new home

bill richardson
 

I found putting multi layers of heat shrink over the shaft does the trick. On one of my bitx40’s I had a friend 3D print a knob for me.

Sent from my iPhone

On Jan 9, 2018, at 3:49 PM, Dave Bottom <@WI6R> wrote:

Add a set of Tool & Die maker’s files Sears/Craftsman. Couldn’t be without those tiny files!

Dave WI6R

Sent from my iPhone

On Jan 9, 2018, at 2:03 AM, David Wilcox via Groups.Io <Djwilcox01=yahoo.com@groups.io> wrote:

Don't all home brewers have a Dremel tool with an assortment of cutting blades and grinding bits to smooth out the rough edges. I couldn't live without them. I use mine for home repairs, car repairs and everything radio. I first discovered their utility in my medical practice. I had many elderly patients with bunions, callouses and thick toe nails that interfered with foot health and comfort. Many of them couldn't afford to see the podiatrist so I set up a vacuum cleaner that the patient held in place and while we were kibitzing I ground away with my Dremel..... Made some friends and had some fun. When I retired I had four Dremels and many different grinding tools. Had to buy a cutting wheel or two for the radio room. Thought everyone would get a laugh from this. (I started out as a country GP and had to do it all. There were no specialists close.)

Dave K8WPE



On Jan 9, 2018, at 2:54 AM, Keith VE7GDH <ve7gdh@...> wrote:

Doug KD9CYF wrote...

Care to share your technique?
My uBITXs should show up any day now! On my BITX40, I
used a cutting wheel in a rotary tool, cutting the opening
slightly undersize, and then used a file to even it up
a bit and make it large enough. It worked well, but I won't
know until the next one if I just got lucky or if it will
be easy every time. I don't have any bezels.

--
73 Keith VE7GDH







Re: My µBITX in its new home

Dave Bottom <ars.kd6az@...>
 

Add a set of Tool & Die maker’s files Sears/Craftsman. Couldn’t be without those tiny files!

Dave WI6R

Sent from my iPhone

On Jan 9, 2018, at 2:03 AM, David Wilcox via Groups.Io <Djwilcox01=yahoo.com@groups.io> wrote:

Don't all home brewers have a Dremel tool with an assortment of cutting blades and grinding bits to smooth out the rough edges. I couldn't live without them. I use mine for home repairs, car repairs and everything radio. I first discovered their utility in my medical practice. I had many elderly patients with bunions, callouses and thick toe nails that interfered with foot health and comfort. Many of them couldn't afford to see the podiatrist so I set up a vacuum cleaner that the patient held in place and while we were kibitzing I ground away with my Dremel..... Made some friends and had some fun. When I retired I had four Dremels and many different grinding tools. Had to buy a cutting wheel or two for the radio room. Thought everyone would get a laugh from this. (I started out as a country GP and had to do it all. There were no specialists close.)

Dave K8WPE



On Jan 9, 2018, at 2:54 AM, Keith VE7GDH <ve7gdh@...> wrote:

Doug KD9CYF wrote...

Care to share your technique?
My uBITXs should show up any day now! On my BITX40, I
used a cutting wheel in a rotary tool, cutting the opening
slightly undersize, and then used a file to even it up
a bit and make it large enough. It worked well, but I won't
know until the next one if I just got lucky or if it will
be easy every time. I don't have any bezels.

--
73 Keith VE7GDH


Re: uBitx with first mod and question

Dave Bottom <ars.kd6az@...>
 

That Sixer package looks great! 

Now you just need to add filters for 6M and maybe a pair of RD16HVF1s in the PA!   LOL

I was already imagining adding 6M.

Dave WI6R

Sent from my iPhone

On Jan 9, 2018, at 6:23 AM, Karl Schwab via Groups.Io <ktschwab@...> wrote:

Mods sound good, but to a "rare" Heathkit  Benton Harbor Lunchbox?  Karl


On Tuesday, January 9, 2018 8:53 AM, KD8CGH <rkayakr@...> wrote:


Here is my uBitx after first mods. I added a Sotabeams CW audio fiilter. The old TR switch now controls the filter. Down is the original wide SSB, middle is the normal CW and top is narrow CW. The right light is spot indicator controlled by the CW filter and lights when you are well tuned. Unfortunately adding the filter (goes before final AF amp)  raised the receiver noise. I'm working on shielding to restore the original performance.  Suggestions would be appreciated.
It still needs anti pop, a better bezel, ...

<hw3s.jpg>


<hw3s.jpg>

630 M

Fred WA0GMH
 

Has anyone tried to modify the BITX40 to work on 630 M?  It looks like if one changed the bandpass and low pass filters, and changed the VFO to 11.5 MHz it should work.  For USB you'd use the sum from the BFO mixer and the difference from the VFO mixer.  If this works, it would make a nice transceiver for 630 M digital modes.

Fred WA0GMH

Re: Audio/Interface PCB?

Mark Phillips
 

The Easy-digi circuit is a common design. Nothing more than a few transformers etc. Maybe try adding Kevin Loughlin's DuinoVOX design to the Radioino controller via some sort of menu function to enact the VOX part? Good isolation is a must IMHO.

There are many speech processor designs around for the FT-817. Many of them live in the mic cable as an addition to the cable rather than an upgrade inside the mic or rig itself such as this one (prolly based on Jeff's design?) http://www.box73.com/product/4

Mark

On Tue, Jan 9, 2018 at 3:10 PM, John Sutter <jds@...> wrote:

I've been thinking of making an Audio/Interface PCB for the BITX40/uBITX.

What would be good to have on it?
  Microphone Speech Processor: Jeff Cummings's design using the SSM2167
  AGC:  Which is the current favorite?

What else?
  Easy-Digi circuit if I can get permission or a footprint for the module(?)
  ?

I'm thinking of releasing the Gerber files and let folks get their own boards
made.  AllPCB's price went up to $2.10 per board for 100x100mm.


--
John Sutter
W1JDS CM87xi





BitX40 Function Button

V Zecchinelli
 

Good Afternoon,

Quick question.  On the function button install.  Do I tap into the orange wire at A3 and run other end of switch to ground or do I remove orange wire and and run from A3 to switch to ground?

Many thanks,

73 N1VIN  Vince

Audio/Interface PCB?

 

I've been thinking of making an Audio/Interface PCB for the BITX40/uBITX.

What would be good to have on it?
  Microphone Speech Processor: Jeff Cummings's design using the SSM2167
  AGC:  Which is the current favorite?

What else?
  Easy-Digi circuit if I can get permission or a footprint for the module(?)
  ?

I'm thinking of releasing the Gerber files and let folks get their own boards
made.  AllPCB's price went up to $2.10 per board for 100x100mm.


--
John Sutter
W1JDS CM87xi

Rainy Day Radio

Michael Hagen
 

Radio with RaduinoXP Mega, Lotsa Clock i2C Clock PCB, 455KHZ IF Amp with Manual AGC Control and Ceramic Filter, and Audio Amp - Lo Pass Filter.


--
Mike Hagen, WA6ISP
10917 Bryant Street
Yucaipa, Ca. 92399
(909) 918-0058
PayPal ID "MotDog@..."
Mike@...

Re: tx pop

q q
 

I tried the 470uF on my uBitx and yes it does suppress the TX --> RX thump quite well.

73
Bob
N1ETS

Re: Trouble With Alternate Audio Inputs (BITX40 Module)

Michael Davis <maddmd818@...>
 

Jerry, you may have seen my recent post. My Bitx40 is not transmitting. Per your write-up, I have checked all transistor voltages and they closely match Randy's listing. At a firum members suggestion, I checked voltage at the electret capsule in transmit, it's 3.99vdc. I assume this is correct. Not sure where to now go in the audio input chain. I dont have a signal gen or signal tracer. Maybe I can try a transistor radio audio output via a small capacitor into the audio chain but it sure is hard to follow, starting at Q12. Any thoughts?


On Sun, Mar 26, 2017 at 07:33 pm, Jerry Gaffke wrote:

Not sure exactly what is going wrong there, but all those large caps and coils might be causing trouble somehow.  I'd remove the 470uH coils and replace the 100uf with 1uF (no point in having a series cap that's much bigger than the existing C121), see if that works.  If it doesn't, then try getting by without the transformer.

 

On Sun, Mar 26, 2017 at 07:02 pm, <bruce@...> wrote:

For some reason when I key the rig there is an oscillation that puts the rig into full RF output.

 

uBITX finished and in the case

jlco001@...
 

The display does work - camera just won't show it. I had an old HT mic I used. To help cut out the display hole I used a Dremel tool, then a file. I also had to use the Dremel tool to make the 1/8" jacks fit the thicker case. It's putting out about 12 watts on 40m.

Jeff
AD6RH

Re: Implement a uBITX Memory Manager Program

peatmoss - ki6ssi
 

Thanks! I'll test it out.

Pete

Release beta version of CAT support uBITX firmware. #ubitx

Ian Lee
 

For anyone who wants to make CAT communication in uBITX, post it.
After the first beta test, we now release the final test version.

You can restore it to the original firmware whenever you do not like my new firmware.
(Do not worry - uBITX original firmware is also posted on my blog)

When the beta test period is over, I will reload it with the stabilized version.
 
Below are the test results that I and beta testers
-In Ham radio deluxe, you can set basic settings such as CW speed side tone as well as frequency and mode change. You can conveniently set uBITX values using Ham radio deluxe.


If you use wsjtx, fldigi, jt65-hf etc., you can control the PTT control as well as the frequency by setting FT-817 as shown below.

In digital communications such as the FT-8 and JT65, if only USB is connected to the computer, software such as wsjtx will control the uBITX's frequency and PTT.

 


I also experimented with control on Windows, linux, and Raspberry pi.

 

Memory Keyer function is also built in.
I will post about the memory keyer implementation separately.

 

And most of the known bugs were fixed.

I have created dedicated software that supports this firmware 100%.

With this software, you can backup and restore various setting values of uBITX and manage the CW Text of the built-in memory keyer.

In addition, you have built-in tips to launch your Callsign at boot time.


For more information, download firmware and how to upgrade firmware, please use the link below.

http://www.hamskey.com/2018/01/release-beta-version-of-cat-support.html
Or if you need to hit the keyboard, just type http://www.hamskey.com and you can see it. It 's the top post because I posted it right now.

Below is the final test video posted a week ago.
https://www.youtube.com/edit?o=U&video_id=GKS1p41CP_s

--
Best 73
KD8CEC / Ph.D Ian lee
kd8cec@...
www.hamskey.com 

Re: My µBITX in its new home

Vince Vielhaber
 

What I'm thinking about doing is a matched set of knobs. One with the small size hole for the volume control, one with the 1/4" hole in case someone swapped out the control for one like the adafruit and one for tuning.

Vince.

On 01/09/2018 12:54 PM, Jack Purdum via Groups.Io wrote:
Thanks, Vince, but those would be too big. I do have one coming in the
mail, so I can wait a while.

Thanks again...

Jack, W8TEE


------------------------------------------------------------------------
*From:* Vince Vielhaber <vev@...>
*To:* BITX20@groups.io
*Sent:* Tuesday, January 9, 2018 12:48 PM
*Subject:* Re: [BITX20] My µBITX in its new home

Knurled black plastic ok? Matched tuning knob at 2" or 1.5"

Vince.


On 01/09/2018 12:45 PM, Jack Purdum via Groups.Io wrote:
About an inch.

Jack, W8TEE


------------------------------------------------------------------------
*From:* Vince Vielhaber <vev@... <mailto:vev@...>>
*To:* BITX20@groups.io <mailto:BITX20@groups.io>
*Sent:* Tuesday, January 9, 2018 12:40 PM
*Subject:* Re: [BITX20] My µBITX in its new home

Sorry, I should've been more clear. I know the shaft size, what size
knob (outside diameter) were you looking for?

Vince.



On 01/09/2018 12:33 PM, Jack Purdum via Groups.Io wrote:
The µBITX volume control knob is 3mm rather than the standard 6mm (or
1/4"). However, even the 3mm knob I have seems wobbly...it may not
actually be metic, but a 1/8" knob.

Jack, W8TEE


------------------------------------------------------------------------
*From:* Vince Vielhaber <vev@... <mailto:vev@...>
<mailto:vev@... <mailto:vev@...>>>
*To:* BITX20@groups.io <mailto:BITX20@groups.io>
<mailto:BITX20@groups.io <mailto:BITX20@groups.io>>
*Sent:* Tuesday, January 9, 2018 12:27 PM
*Subject:* Re: [BITX20] My µBITX in its new home

What diameter knob are you guys looking for?

Vince.



On 01/09/2018 11:36 AM, Jim Sheldon wrote:
Nope. I couldn't find one either. I've taken a knob for a 1/4" shaft,
some 1/4" diameter Nylon rod, drilled the center out of the rod, drilled
a hole in the side of the rod big enough to pass the set screw and cut
the rod to length so it remains flush with the bottom of the hole in the
knob. Run the set screw down far enough to hold it in place until you
get ready to mount it on the pot shaft. Usually you will have to cut
the shaft of the supplied pot to the right length as well. Caveat, make
sure you don't cut the shaft too short - LOL Fortunately that happened
on something else long ago and I haven't forgotten the lesson.

Jim - W0EB

------ Original Message ------
From: "Jack Purdum via Groups.Io" <jjpurdum=yahoo.com@groups.io
<mailto:yahoo.com@groups.io>
<mailto:yahoo.com@groups.io <mailto:yahoo.com@groups.io>>
<mailto:yahoo.com@groups.io <mailto:yahoo.com@groups.io>
<mailto:yahoo.com@groups.io <mailto:yahoo.com@groups.io>>>
<mailto:jjpurdum=yahoo.com@groups.io <mailto:yahoo.com@groups.io>
<mailto:yahoo.com@groups.io <mailto:yahoo.com@groups.io>>
<mailto:yahoo.com@groups.io <mailto:yahoo.com@groups.io>
<mailto:yahoo.com@groups.io <mailto:yahoo.com@groups.io>>>>>
To: BITX20@groups.io <mailto:BITX20@groups.io>
<mailto:BITX20@groups.io <mailto:BITX20@groups.io>>
<mailto:BITX20@groups.io <mailto:BITX20@groups.io>
<mailto:BITX20@groups.io <mailto:BITX20@groups.io>>>
<mailto:BITX20@groups.io <mailto:BITX20@groups.io>
<mailto:BITX20@groups.io <mailto:BITX20@groups.io>>
<mailto:BITX20@groups.io <mailto:BITX20@groups.io>
<mailto:BITX20@groups.io <mailto:BITX20@groups.io>>>>
Sent: 1/9/2018 10:26:55 AM
Subject: Re: [BITX20] My µBITX in its new home
. BTW, am I the only person finding it difficult to find a knob for
the small volume control?

Jack, W8TEE


--
Michigan VHF Corp. http://www.nobucks.net/
<http://www.nobucks.net/><http://www.nobucks.net/>
http://www.CDupe.com/
<http://www.cdupe.com/><http://www.cdupe.com/><http://www.cdupe.com/>
http://www.metalworkingfun.com
<http://www.metalworkingfun.com/>
<http://www.metalworkingfun.com/>
<http://www.metalworkingfun.com/>






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<#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>
--
Michigan VHF Corp. http://www.nobucks.net/
<http://www.nobucks.net/><http://www.nobucks.net/>
http://www.CDupe.com/ <http://www.cdupe.com/><http://www.cdupe.com/>
http://www.metalworkingfun.com
<http://www.metalworkingfun.com/>
<http://www.metalworkingfun.com/>





--
Michigan VHF Corp. http://www.nobucks.net/ <http://www.nobucks.net/>
http://www.CDupe.com/ <http://www.cdupe.com/>
http://www.metalworkingfun.com
<http://www.metalworkingfun.com/>





Re: My µBITX in its new home

Jack, W8TEE
 

Thanks, Vince, but those would be too big. I do have one coming in the mail, so I can wait a while.

Thanks again...

Jack, W8TEE



From: Vince Vielhaber <vev@...>
To: BITX20@groups.io
Sent: Tuesday, January 9, 2018 12:48 PM
Subject: Re: [BITX20] My µBITX in its new home

Knurled black plastic ok?  Matched tuning knob at 2" or 1.5"

Vince.


On 01/09/2018 12:45 PM, Jack Purdum via Groups.Io wrote:
> About an inch.
>
> Jack, W8TEE
>
>
> ------------------------------------------------------------------------
> *From:* Vince Vielhaber <vev@...>
> *To:* BITX20@groups.io
> *Sent:* Tuesday, January 9, 2018 12:40 PM
> *Subject:* Re: [BITX20] My µBITX in its new home
>
> Sorry, I should've been more clear.  I know the shaft size, what size
> knob (outside diameter) were you looking for?
>
> Vince.
>
>
>
> On 01/09/2018 12:33 PM, Jack Purdum via Groups.Io wrote:
>> The µBITX volume control knob is 3mm rather than the standard 6mm (or
>> 1/4"). However, even the 3mm knob I have seems wobbly...it may not
>> actually be metic, but a 1/8" knob.
>>
>> Jack, W8TEE
>>
>>
>> ------------------------------------------------------------------------
>> *From:* Vince Vielhaber <vev@... <mailto:vev@...>>
>> *To:* BITX20@groups.io <mailto:BITX20@groups.io>
>> *Sent:* Tuesday, January 9, 2018 12:27 PM
>> *Subject:* Re: [BITX20] My µBITX in its new home
>>
>> What diameter knob are you guys looking for?
>>
>> Vince.
>>
>>
>>
>> On 01/09/2018 11:36 AM, Jim Sheldon wrote:
>>> Nope.  I couldn't find one either.  I've taken a knob for a 1/4" shaft,
>>> some 1/4" diameter Nylon rod, drilled the center out of the rod, drilled
>>> a hole in the side of the rod big enough to pass the set screw and cut
>>> the rod to length so it remains flush with the bottom of the hole in the
>>> knob.  Run the set screw down far enough to hold it in place until you
>>> get ready to mount it on the pot shaft.  Usually you will have to cut
>>> the shaft of the supplied pot to the right length as well.  Caveat, make
>>> sure you don't cut the shaft too short - LOL  Fortunately that happened
>>> on something else long ago and I haven't forgotten the lesson.
>>>
>>> Jim - W0EB
>>>
>>> ------ Original Message ------
>>> From: "Jack Purdum via Groups.Io" <jjpurdum=yahoo.com@groups.io
> <mailto:yahoo.com@groups.io>
>> <mailto:yahoo.com@groups.io <mailto:yahoo.com@groups.io>>
>>> <mailto:jjpurdum=yahoo.com@groups.io <mailto:yahoo.com@groups.io>
> <mailto:yahoo.com@groups.io <mailto:yahoo.com@groups.io>>>>
>>> To: BITX20@groups.io <mailto:BITX20@groups.io>
> <mailto:BITX20@groups.io <mailto:BITX20@groups.io>>
>> <mailto:BITX20@groups.io <mailto:BITX20@groups.io>
> <mailto:BITX20@groups.io <mailto:BITX20@groups.io>>>
>>> Sent: 1/9/2018 10:26:55 AM
>>> Subject: Re: [BITX20] My µBITX in its new home
>>>>
>>>
>>>> . BTW, am I the only person finding it difficult to find a knob for
>>>> the small volume control?
>>>>
>>>> Jack, W8TEE
>>>>
>>>>
>>>>
>>>
>>
>> --
>>  Michigan VHF Corp.  http://www.nobucks.net/
> <http://www.nobucks.net/><http://www.nobucks.net/>
>> http://www.CDupe.com/ <http://www.cdupe.com/><http://www.cdupe.com/>
>>                          http://www.metalworkingfun.com
> <http://www.metalworkingfun.com/>
>> <http://www.metalworkingfun.com/>
>>
>>
>>
>>
>>
>>
>>
> <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail&utm_term=icon>
>>    Virus-free. www.avast.com
>>
> <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail&utm_term=link>
>>
>>
>> <#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>
>>
>
> --
>  Michigan VHF Corp.  http://www.nobucks.net/ <http://www.nobucks.net/>
> http://www.CDupe.com/ <http://www.cdupe.com/>
>                          http://www.metalworkingfun.com
> <http://www.metalworkingfun.com/>
>
>
>
>
>
>

--
  Michigan VHF Corp.  http://www.nobucks.net/   http://www.CDupe.com/
                          http://www.metalworkingfun.com





Re: Cheap Bezels

Arv Evans
 

Very Good.
_._


On Mon, Jan 8, 2018 at 11:42 PM, William Londree <ventura_bill@...> wrote:
Several years ago when I was building Classical Guitars, I purchased a package of 12 Wood Laminating strips from Woodcraft. They are 1/8 inch thick and 7/8 inch wide by 24 inches long. There are several different colors so I plan to use a black one and rip it into 1/8 inch wide square strips. Similar to Arv's idea, I can construct a home made Bezel. Corners can be mitered using an Xacto Razor saw.

This idea is some what more expensive than Arv's idea but I have the stuff on hand (bought it on a whim and never got around to using it) and finally see a use for it. My uBITX will go into an Excellway plastic case and I will do a photo on it later.

Bill

W6SDI


Re: Implement a uBITX Memory Manager Program

Ian Lee
 

Pete

I did not use winlink to test it. But the beta testers who tested my firmware said that they all work perfectly in the programs you use.
I think it is not a capacitor problem that a timeout occurs. uBITX firmware is single thread based.
In a single thread, there is a timeout problem. To prevent it, use an interrupt or RTOS.
I used arduino for the first time. So I did not know the interrupt pending time, etc., and solved the problem by simulating RTOS for safety.
RTOS imitation refers to making a background task when you stay in delay or in some function. Just keep checking the uart buffer.
The problem here is that these overloads should not affect what should not be delayed, such as cw keying. 

I will release my firmware now.
I would appreciate it if you could upload it and test it yourself.

Thanks

Ian KD8CEC



2018-01-10 2:31 GMT+09:00 peatmoss - ki6ssi <pete@...>:

Thanks! I'm getting cat control timeouts trying to use wsjt-t and fldigi. I did the capacitor reset mod to the arduino but still have issues. Winlink works perfect though? Using both Ubuntu and Windows 10.

Pete



--
Best 73
KD8CEC / Ph.D ian lee
kd8cec@...
www.hamskey.com (my blog)

Re: My µBITX in its new home

Jim Sheldon
 

Mainly 1/2" or 9/16" OD knobs. Would like to find matching 3/4" and maybe 1" OD knobs but with 1/4" shaft. Those will work for 6mm shaft too but they will be a tiny bit wobbly. I can live with that.

Jim - W0EB

------ Original Message ------
From: "Vince Vielhaber" <vev@...>
To: BITX20@groups.io
Sent: 1/9/2018 11:40:21 AM
Subject: Re: [BITX20] My µBITX in its new home

Sorry, I should've been more clear. I know the shaft size, what size knob (outside diameter) were you looking for?

Vince.



On 01/09/2018 12:33 PM, Jack Purdum via Groups.Io wrote:
The µBITX volume control knob is 3mm rather than the standard 6mm (or
1/4"). However, even the 3mm knob I have seems wobbly...it may not
actually be metic, but a 1/8" knob.

Jack, W8TEE


------------------------------------------------------------------------
*From:* Vince Vielhaber <vev@...>
*To:* BITX20@groups.io
*Sent:* Tuesday, January 9, 2018 12:27 PM
*Subject:* Re: [BITX20] My µBITX in its new home

What diameter knob are you guys looking for?

Vince.



On 01/09/2018 11:36 AM, Jim Sheldon wrote:
Nope. I couldn't find one either. I've taken a knob for a 1/4" shaft,
some 1/4" diameter Nylon rod, drilled the center out of the rod, drilled
a hole in the side of the rod big enough to pass the set screw and cut
the rod to length so it remains flush with the bottom of the hole in the
knob. Run the set screw down far enough to hold it in place until you
get ready to mount it on the pot shaft. Usually you will have to cut
the shaft of the supplied pot to the right length as well. Caveat, make
sure you don't cut the shaft too short - LOL Fortunately that happened
on something else long ago and I haven't forgotten the lesson.

Jim - W0EB

------ Original Message ------
From: "Jack Purdum via Groups.Io" <jjpurdum=yahoo.com@groups.io
<mailto:yahoo.com@groups.io>
<mailto:jjpurdum=yahoo.com@groups.io <mailto:yahoo.com@groups.io>>>
To: BITX20@groups.io <mailto:BITX20@groups.io>
<mailto:BITX20@groups.io <mailto:BITX20@groups.io>>
Sent: 1/9/2018 10:26:55 AM
Subject: Re: [BITX20] My µBITX in its new home
. BTW, am I the only person finding it difficult to find a knob for
the small volume control?

Jack, W8TEE


--
Michigan VHF Corp. http://www.nobucks.net/ <http://www.nobucks.net/>
http://www.CDupe.com/ <http://www.cdupe.com/>
http://www.metalworkingfun.com
<http://www.metalworkingfun.com/>






<https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail&utm_term=icon>
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<#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>
-- Michigan VHF Corp. http://www.nobucks.net/ http://www.CDupe.com/
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Re: My µBITX in its new home

Vince Vielhaber
 

Knurled black plastic ok? Matched tuning knob at 2" or 1.5"

Vince.

On 01/09/2018 12:45 PM, Jack Purdum via Groups.Io wrote:
About an inch.

Jack, W8TEE


------------------------------------------------------------------------
*From:* Vince Vielhaber <vev@...>
*To:* BITX20@groups.io
*Sent:* Tuesday, January 9, 2018 12:40 PM
*Subject:* Re: [BITX20] My µBITX in its new home

Sorry, I should've been more clear. I know the shaft size, what size
knob (outside diameter) were you looking for?

Vince.



On 01/09/2018 12:33 PM, Jack Purdum via Groups.Io wrote:
The µBITX volume control knob is 3mm rather than the standard 6mm (or
1/4"). However, even the 3mm knob I have seems wobbly...it may not
actually be metic, but a 1/8" knob.

Jack, W8TEE


------------------------------------------------------------------------
*From:* Vince Vielhaber <vev@... <mailto:vev@...>>
*To:* BITX20@groups.io <mailto:BITX20@groups.io>
*Sent:* Tuesday, January 9, 2018 12:27 PM
*Subject:* Re: [BITX20] My µBITX in its new home

What diameter knob are you guys looking for?

Vince.



On 01/09/2018 11:36 AM, Jim Sheldon wrote:
Nope. I couldn't find one either. I've taken a knob for a 1/4" shaft,
some 1/4" diameter Nylon rod, drilled the center out of the rod, drilled
a hole in the side of the rod big enough to pass the set screw and cut
the rod to length so it remains flush with the bottom of the hole in the
knob. Run the set screw down far enough to hold it in place until you
get ready to mount it on the pot shaft. Usually you will have to cut
the shaft of the supplied pot to the right length as well. Caveat, make
sure you don't cut the shaft too short - LOL Fortunately that happened
on something else long ago and I haven't forgotten the lesson.

Jim - W0EB

------ Original Message ------
From: "Jack Purdum via Groups.Io" <jjpurdum=yahoo.com@groups.io
<mailto:yahoo.com@groups.io>
<mailto:yahoo.com@groups.io <mailto:yahoo.com@groups.io>>
<mailto:jjpurdum=yahoo.com@groups.io <mailto:yahoo.com@groups.io>
<mailto:yahoo.com@groups.io <mailto:yahoo.com@groups.io>>>>
To: BITX20@groups.io <mailto:BITX20@groups.io>
<mailto:BITX20@groups.io <mailto:BITX20@groups.io>>
<mailto:BITX20@groups.io <mailto:BITX20@groups.io>
<mailto:BITX20@groups.io <mailto:BITX20@groups.io>>>
Sent: 1/9/2018 10:26:55 AM
Subject: Re: [BITX20] My µBITX in its new home
. BTW, am I the only person finding it difficult to find a knob for
the small volume control?

Jack, W8TEE


--
Michigan VHF Corp. http://www.nobucks.net/
<http://www.nobucks.net/><http://www.nobucks.net/>
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http://www.metalworkingfun.com
<http://www.metalworkingfun.com/>
<http://www.metalworkingfun.com/>






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http://www.metalworkingfun.com
<http://www.metalworkingfun.com/>





Re: My µBITX in its new home

Jack, W8TEE
 

About an inch.

Jack, W8TEE



From: Vince Vielhaber <vev@...>
To: BITX20@groups.io
Sent: Tuesday, January 9, 2018 12:40 PM
Subject: Re: [BITX20] My µBITX in its new home

Sorry, I should've been more clear.  I know the shaft size, what size
knob (outside diameter) were you looking for?

Vince.



On 01/09/2018 12:33 PM, Jack Purdum via Groups.Io wrote:
> The µBITX volume control knob is 3mm rather than the standard 6mm (or
> 1/4"). However, even the 3mm knob I have seems wobbly...it may not
> actually be metic, but a 1/8" knob.
>
> Jack, W8TEE
>
>
> ------------------------------------------------------------------------
> *From:* Vince Vielhaber <vev@...>
> *To:* BITX20@groups.io
> *Sent:* Tuesday, January 9, 2018 12:27 PM
> *Subject:* Re: [BITX20] My µBITX in its new home
>
> What diameter knob are you guys looking for?
>
> Vince.
>
>
>
> On 01/09/2018 11:36 AM, Jim Sheldon wrote:
>> Nope.  I couldn't find one either.  I've taken a knob for a 1/4" shaft,
>> some 1/4" diameter Nylon rod, drilled the center out of the rod, drilled
>> a hole in the side of the rod big enough to pass the set screw and cut
>> the rod to length so it remains flush with the bottom of the hole in the
>> knob.  Run the set screw down far enough to hold it in place until you
>> get ready to mount it on the pot shaft.  Usually you will have to cut
>> the shaft of the supplied pot to the right length as well.  Caveat, make
>> sure you don't cut the shaft too short - LOL  Fortunately that happened
>> on something else long ago and I haven't forgotten the lesson.
>>
>> Jim - W0EB
>>
>> ------ Original Message ------
>> From: "Jack Purdum via Groups.Io" <jjpurdum=yahoo.com@groups.io
> <mailto:yahoo.com@groups.io>
>> <mailto:jjpurdum=yahoo.com@groups.io <mailto:yahoo.com@groups.io>>>
>> To: BITX20@groups.io <mailto:BITX20@groups.io>
> <mailto:BITX20@groups.io <mailto:BITX20@groups.io>>
>> Sent: 1/9/2018 10:26:55 AM
>> Subject: Re: [BITX20] My µBITX in its new home
>>>
>>
>>> . BTW, am I the only person finding it difficult to find a knob for
>>> the small volume control?
>>>
>>> Jack, W8TEE
>>>
>>>
>>>
>>
>
> --
>  Michigan VHF Corp.  http://www.nobucks.net/ <http://www.nobucks.net/>
> http://www.CDupe.com/ <http://www.cdupe.com/>
>                          http://www.metalworkingfun.com
> <http://www.metalworkingfun.com/>
>
>
>
>
>
>
> <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail&utm_term=icon>
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> <#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>
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