Date   
Re: ubitx standoffs #parts

R S
 

Thanks for the good info. I’ll get going on the standoffs asap.

Thank you both,
Ron  KJ4FFG




On Wednesday, February 28, 2018, 12:17, Michael Hagen <motdog@...> wrote:

They are metric 3 mm.  So you have to use 3mm bolts those for the supplied spacers.

Most places have plastic spacers too.  Get 4-40 size ones.  Un-threaded 0.096" or 0.1" and you can use #4 sheet metal screws or self thread 4-40 screws.  Check Mouser.  Or mail order surplus, like All Electronics.

Buy long ones and cut them off to the length you need.   The ACE and other local hardware stores have brass and Al. tubing for model making.

K&M Metals or some name like that.  Al. , Brass, or Copper is easier to work with than steel.

You could cut up spacer from them too.  Could even go to putting nuts at the other end?

Our local ACE has a whole section of hardware, including Metric.


73's Mike WA6ISP



On 2/28/2018 8:20 AM, R S via Groups.Io wrote:
This Group is mighty nice.  I have enjoyed it tremendously for a while now and have learned from others here.  I have a question now.  I have installed my xbitx in an old junked Repeater Case, no testing yet, but I would like to have better choices with the standoffs for the board and display.  The display is a little too far in for my total liking.  Maybe you can see with pics.  Not finished yet.  What are the threads per inch (maybe 4-40) and so on?  I ordered some from Mouser but were surely not what I wanted and expected.  Any help is surely and greatly appreciated.

Ron
KJ4FFG

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

Re: ubitx standoffs #parts

 

Ron, 

I like a lot of the cases I see used for BitXes, I really like this one and your choice of knobs and layout

Craig
KM4YEC


On Feb 28, 2018, at 11:20 AM, R S via Groups.Io <rons8@...> wrote:

This Group is mighty nice.  I have enjoyed it tremendously for a while now and have learned from others here.  I have a question now.  I have installed my xbitx in an old junked Repeater Case, no testing yet, but I would like to have better choices with the standoffs for the board and display.  The display is a little too far in for my total liking.  Maybe you can see with pics.  Not finished yet.  What are the threads per inch (maybe 4-40) and so on?  I ordered some from Mouser but were surely not what I wanted and expected.  Any help is surely and greatly appreciated.

Ron
KJ4FFG <IMG_4796_1_.JPG><IMG_4797_1_.JPG>

Re: ubitx standoffs #parts

K5ESS
 

I also trim spacers to length.  I bought a hundred ¾ inch aluminum 4-40 spacers which I cut a little longer than I need and then I chuck them in a drill press.  Using a file I can then trim them to within a couple of thousands of an inch.  Here’s a couple of photos of the display installation on my incomplete uBITX.

I cut the spacers a little short to have the display flush with the front panel so I had to add some washers to compensate.

Mike

K5ESS

 

From: BITX20@groups.io [mailto:BITX20@groups.io] On Behalf Of Michael Hagen
Sent: Wednesday, February 28, 2018 11:18 AM
To: BITX20@groups.io
Subject: Re: [BITX20] ubitx standoffs #parts

 

They are metric 3 mm.  So you have to use 3mm bolts those for the supplied spacers.

Most places have plastic spacers too.  Get 4-40 size ones.  Un-threaded 0.096" or 0.1" and you can use #4 sheet metal screws or self thread 4-40 screws.  Check Mouser.  Or mail order surplus, like All Electronics.

Buy long ones and cut them off to the length you need.   The ACE and other local hardware stores have brass and Al. tubing for model making.

K&M Metals or some name like that.  Al. , Brass, or Copper is easier to work with than steel.

You could cut up spacer from them too.  Could even go to putting nuts at the other end?

Our local ACE has a whole section of hardware, including Metric.

 

73's Mike WA6ISP

 

 

On 2/28/2018 8:20 AM, R S via Groups.Io wrote:

This Group is mighty nice.  I have enjoyed it tremendously for a while now and have learned from others here.  I have a question now.  I have installed my xbitx in an old junked Repeater Case, no testing yet, but I would like to have better choices with the standoffs for the board and display.  The display is a little too far in for my total liking.  Maybe you can see with pics.  Not finished yet.  What are the threads per inch (maybe 4-40) and so on?  I ordered some from Mouser but were surely not what I wanted and expected.  Any help is surely and greatly appreciated.

Ron
KJ4FFG



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

Re: U1 fried

K5ESS
 

Yes the mono to stereo adapter does just short the mono signal to both stereo signals but that is not the problem.  The problem is when you insert a mono plug into the uBITX stereo jack it shorts the ring connection (and the output of U1) to ground.  If the ring connection is left open there will be no short when a mono plug is inserted.

Mike

K5ESS

 

 

From: BITX20@groups.io [mailto:BITX20@groups.io] On Behalf Of Jerry Gaffke via Groups.Io
Sent: Wednesday, February 28, 2018 11:36 AM
To: BITX20@groups.io
Subject: Re: [BITX20] U1 fried

 

I assume the mono to serial adapter would just short the mono signal to both stereo signals.
So you are back where you started, plugging a mono jack into that adapter will kill the TDA2822M.
Could work if you avoid this, but not foolproof.  And thus not suitable if I'm anywhere in the vicinity.

Might be better to add a series resistor inside the radio, and/or reduce the supply voltage to the TDA2822M

Jerry, KE7ER


On Wed, Feb 28, 2018 at 09:22 am, K5ESS wrote:

It appears at least a few folks have fried U1 by inserting a mono plug in the speaker jack and shorting out the audio.  I’d recommend only wiring up the tip connection and not the ring and then using an external mono to serial adapter for your stereo phones.

 

Re: U1 fried

K5ESS
 

Jerry,

After re-reading your post I now see your point.  But I think it a lot less likely that someone would plug a mono plug into a mono to stereo adapter IMHO.

Mike

K5ESS

 

From: BITX20@groups.io [mailto:BITX20@groups.io] On Behalf Of Jerry Gaffke via Groups.Io
Sent: Wednesday, February 28, 2018 11:36 AM
To: BITX20@groups.io
Subject: Re: [BITX20] U1 fried

 

I assume the mono to serial adapter would just short the mono signal to both stereo signals.
So you are back where you started, plugging a mono jack into that adapter will kill the TDA2822M.
Could work if you avoid this, but not foolproof.  And thus not suitable if I'm anywhere in the vicinity.

Might be better to add a series resistor inside the radio, and/or reduce the supply voltage to the TDA2822M

Jerry, KE7ER


On Wed, Feb 28, 2018 at 09:22 am, K5ESS wrote:

It appears at least a few folks have fried U1 by inserting a mono plug in the speaker jack and shorting out the audio.  I’d recommend only wiring up the tip connection and not the ring and then using an external mono to serial adapter for your stereo phones.

 

Re: Completed radio and it is not working

L Sechrist
 

OK so I got a new 7805, installed it and the rig is now working. The tuner is a little hinky but it works. I may look into a 10 turn pot down the road. The problem I have now is the audio is very low almos inaudible. I am hearing stations but very low volume. I have tried different speaker with no effect.

Re: ubitx standoffs #parts

R S
 

Thank you very much for your comment Craig.

Mike, I intend to at least get the display mounted recessed back at a minimum of the thickness of the panel material.  Some good thoughts about what to use.

Thanks all,
Ron   KJ4FFG

Re: U1 fried

Walter
 

So what is the universal fix?  if a mono jack is plugged into a stereo jack on another electronic device it does not destroy the audio output of those devices.

How do they prevent damage on many other devices with stereo jacks?

--
73, W9KJO
Walter

Re: ubitx standoffs #parts

R S
 

Mike, I left out the statement:  very clean lines and sweet looking in and out.  Good work.

Ron   KJ4FFG

Re: U1 fried

Thomas Sharka
 

I just wired the stereo jack as a mono jack. The signal goes to the tip and the ground goes to the sleeve. The ring isn't connected. Now when I plug in a pair of stereo headphones, I only get one channel, but if I plug in a mono jack, I get sound. When I swap plugs, the short never happens.
 


Sent from Yahoo Mail. Get the app


On Wednesday, February 28, 2018 1:49 PM, Walter <W9KJO@...> wrote:


So what is the universal fix?  if a mono jack is plugged into a stereo jack on another electronic device it does not destroy the audio output of those devices.

How do they prevent damage on many other devices with stereo jacks?

--
73, W9KJO
Walter


Re: U1 fried

Jerry Gaffke
 

Re-read this post:  https://groups.io/g/BITX20/message/42723

Adding a series 8 ohm 1/2 watt resistor between the uBitx board and your phone jack should 
safely prevent any damage, though it will reduce the maximum available audio.

Could be that 4 ohms is sufficient.
 
Jerry


On Wed, Feb 28, 2018 at 10:49 am, Walter wrote:
So what is the universal fix?  if a mono jack is plugged into a stereo jack on another electronic device it does not destroy the audio output of those devices.

How do they prevent damage on many other devices with stereo jacks?

Re: U1 fried

Jerry Gaffke
 

I'm glad that works for you.
But when concocting a recommended solution across thousands of rigs,
we'd best somehow make the rig survive an audio short to ground.   
Or this forum will getting traffic about fried TDA2822M's for years to come.


On Wed, Feb 28, 2018 at 10:55 am, Thomas Sharka wrote:
I just wired the stereo jack as a mono jack. The signal goes to the tip and the ground goes to the sleeve. The ring isn't connected. Now when I plug in a pair of stereo headphones, I only get one channel, but if I plug in a mono jack, I get sound. When I swap plugs, the short never happens.
 
 

Re: Ubitx case #ubitx

Mike Woods
 

There is a news article about Carl's case on uBITx.net, but you are right, it should be discussed in the enclosures page.  I will update the page shortly.

73 Mike ZL1AXG


On 1/03/18 4:17 AM, Neil Goldstein wrote:
Should we add Carl's case to the ubitx.net enclosures section.

I purchased one of these, by the way, and the quality is excellent!!

--Neil, W2NDG


--
Mike Woods
mhwoods@...

Re: Shipping notification

vk7hch@...
 

EVENT CATEGORY
01 Mar 18 5:40 AM - Customs status updated - MELBOURNE,AUSTRALIA

Further Details - Shipment has been given a release by Customs.
Next Steps - Unless there is an adhoc exam or a stop by another regulatory authority the shipment will proceed to delivery

 

 

Re: ubitx standoffs #parts

Michael Hagen
 

Here is my BitX..

3D printed spacers, Knobs, and Bezel.  It is like cheating to make exactly the spacer you need!  Since they are ABS, I can heat a 4-40 bolt on the stove and TAP them with treads too.   The LCD Backlight has a bump at one end,  so to get the LCD parallel you need an inside spacer about 1/8".

Mike, WA6ISP

 

From: BITX20@groups.io [mailto:BITX20@groups.io] On Behalf Of Michael Hagen
Sent: Wednesday, February 28, 2018 11:18 AM
To: BITX20@groups.io
Subject: Re: [BITX20] ubitx standoffs #parts

 

They are metric 3 mm.  So you have to use 3mm bolts those for the supplied spacers.

Most places have plastic spacers too.  Get 4-40 size ones.  Un-threaded 0.096" or 0.1" and you can use #4 sheet metal screws or self thread 4-40 screws.  Check Mouser.  Or mail order surplus, like All Electronics.

Buy long ones and cut them off to the length you need.   The ACE and other local hardware stores have brass and Al. tubing for model making.

K&M Metals or some name like that.  Al. , Brass, or Copper is easier to work with than steel.

You could cut up spacer from them too.  Could even go to putting nuts at the other end?

Our local ACE has a whole section of hardware, including Metric.

 

73's Mike WA6ISP

 

 

On 2/28/2018 8:20 AM, R S via Groups.Io wrote:

This Group is mighty nice.  I have enjoyed it tremendously for a while now and have learned from others here.  I have a question now.  I have installed my xbitx in an old junked Repeater Case, no testing yet, but I would like to have better choices with the standoffs for the board and display.  The display is a little too far in for my total liking.  Maybe you can see with pics.  Not finished yet.  What are the threads per inch (maybe 4-40) and so on?  I ordered some from Mouser but were surely not what I wanted and expected.  Any help is surely and greatly appreciated.

Ron
KJ4FFG



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

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

Fw: [BITX20] Another shipping Notification Update

Richard
 

-----Original Message-----
From: Richard Stanley
Sent: Wednesday, February 28, 2018 4:56 PM
To: BITX20@groups.io
Subject: Re: [BITX20] Another shipping Notification Update


My paypal still says nothing but just got a text message from DHL asking for
£27
Their website says delivery by end of business on Monday (y)

Richard G7OED

-----Original Message-----
From: Vince Vielhaber
Sent: Wednesday, February 28, 2018 4:20 PM
To: BITX20@groups.io
Subject: Re: [BITX20] Another shipping Notification Update

Check paypal in case you just didn't get the notice.

Vince.


On 02/28/2018 08:13 AM, Daniel Conklin wrote:
I ordered mine on the 29th of December 2017, and I haven't gotten notice
of shipping yet.
Dan W2DLC
--
Michigan VHF Corp. http://www.nobucks.net/ http://www.CDupe.com/
http://www.metalworkingfun.com

Re: ubitx standoffs #parts

Jerry Gaffke
 

For those in the US, bereft of a 3D printer, our local ACE Hardware store has an amazing
collection of nuts and bolts and spacers, nylon and brass and steel, imperial and metric.
Including some nice generic knobs for electronics.   

Nylon spacers are easily cut to size with an Xacto knife.

Jerry, KE7ER



On Wed, Feb 28, 2018 at 12:10 pm, Michael Hagen wrote:

3D printed spacers, Knobs, and Bezel.  It is like cheating to make exactly the spacer you need!  Since they are ABS, I can heat a 4-40 bolt on the stove and TAP them with treads too.   The LCD Backlight has a bump at one end,  so to get the LCD parallel you need an inside spacer about 1/8".

 

Re: ubitx standoffs #parts

Arvo W0VRA
 

On Wed, Feb 28, 2018 at 01:38 pm, Jerry Gaffke wrote:
ACE Hardware store has an amazing
collection of nuts and bolts and spacers, nylon and brass and steel, imperial and metric.
Including some nice generic knobs for electronics. 
I was just there last Saturday to get some M3 screws.  I didn't even think to look for knobs!  I'll pay more attention next time, and maybe have some coffee before I go.

Re: U1 fried

John
 

I fried mine when I plugged in a stereo sony noise canceling headset.
So it does not only happen with mono plugs.

Hopefully the spare TDAs with sockets will arrive soon so Incan start troubleshooting my no power problem.
To be on the safe side and avoid another wait I also ordered some IRFs ;)


John

Re: Another shipping Notification Update

Larry Smith
 

ordered my Ubitx Dec. 27, 2017
Rcv'd yesterday Feb.27, 2018.
had to be here and sign for it re DHL
73
WA9DOH

On Wed, Feb 28, 2018 at 7:13 AM, Daniel Conklin <danconklin2@...> wrote:
I ordered mine on the 29th of December 2017, and I haven't gotten notice of shipping yet.
Dan W2DLC