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FW: [BITX20] New file uploaded to [email protected]

 

So I already own the box¡­.

?

1.?????? ?Will the board be available separately? and,

2.?????? When do you suspect it will be available for sale?

?

?

From: [email protected] [mailto:[email protected]] On Behalf Of [email protected] Notification
Sent: Sunday, June 17, 2018 6:30 AM
To: [email protected]
Subject: [BITX20] New file uploaded to [email protected]

?

Hello,

This email message is a notification to let you know that a file has been uploaded to the Files area of the [email protected] group.

File: UBITX CASE MANUAL PCB FRONT PANEL.pdf

Uploaded By: Sunil Lakhani

Description:
A short manual of explaining how to build up the front panel board for stereo sockets For case sold by amateurradiokits.in for micro bitx.

You can access this file at the URL:
/g/BITX20/files/UBITX%20CASE%20MANUAL%20%20PCB%20FRONT%20PANEL.pdf

Cheers,
The Groups.io Team

?

Virus-free.

Re: Topic change

 

Skip, there is that.? Thread drift much!

I see a lot of same topic new thread too, and answers to another thread in a new topic.
What?? ?Where?

Allison
Re: BITX40 and uBITX Kits missing encoders for VFO! #ubitx #bitx40

 

Bill? KG5RMJ ,
here are possible photos for rotary encoder and electret mic for easy conceptualization.





Regards
MVS Sarma
?

On Sun, Jun 17, 2018 at 6:34 PM, Bill Maier <ciric50@...> wrote:
I just received a uBITX yesterday and I'm a total noob at this. I have a small cylinder about 1 cm in diameter and 1 cm high. Is that the electret mic? If not what is it? I do have a small rectangular piece with a knob on top and pins on the bottom, which I assume is the tuning encoder.

-Bill? KG5RMJ


Re: Topic change

 

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Jim I truly believe they don¡¯t know how to generate a new post.?

Skip Davis, NC9O

On Jun 17, 2018, at 10:00, Jim Sheldon <w0eb@...> wrote:

Gentlemen,
Out of consideration for the original intent of my BITeensio thread, would you please take this microscope and magnification discussion to a new thread?? The original intent was to announce the availability of the BITeensio board, not a discussion of magnifiers and microscopes.

Thanks very much,

Jim Sheldon, W0EB

PS, WHY is it that everyone never seems to start a new thread on things like this rather than clutter up the original and make it so difficult for those who want to read the original thread but cant find it due to all the garbage posted by others?

Come on people,? wise up.

Re: BITX40 and uBITX Kits missing encoders for VFO! #ubitx #bitx40

Bill Maier
 

Thanks, that cleared things up! So I do have both of those parts.

-Bill? KG5RMJ
Re: Progress is being made

 

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Great build, it is a good starting point for an future enclosure if you want.?

Skip Davis, NC9O

On Jun 16, 2018, at 23:54, russkg0bk@... wrote:

Just have fun with it.
It's not a $1000 investment (although I wish my Yaesu could receive this well)
Here's a pic of my 1st build.
As you can see . . . no metal . . just a cardboard box.

<Board Test Adjustments 1c 3_22_2018.jpg>
Re: BITX40 and uBITX Kits missing encoders for VFO! #ubitx #bitx40

 

Hi Doug,

As they say, a picture is worth a thousand words:)

When they said that they didn't have video <sly grin>.

Good job.

73,

Bill KU8H

On 06/17/2018 10:05 AM, Doug W wrote:


these are the ?BITX parts. same mic for BITX40.
--
www.bitxmap.com <>
--
bark less - wag more
Re: BITX40 and uBITX Kits missing encoders for VFO! #ubitx #bitx40

 



these are the ?BITX parts.? same mic for BITX40.
--

Re: The BITeensio board is here. #ubitx

 

Gentlemen,
Out of consideration for the original intent of my BITeensio thread, would you please take this microscope and magnification discussion to a new thread?? The original intent was to announce the availability of the BITeensio board, not a discussion of magnifiers and microscopes.

Thanks very much,

Jim Sheldon, W0EB

PS, WHY is it that everyone never seems to start a new thread on things like this rather than clutter up the original and make it so difficult for those who want to read the original thread but cant find it due to all the garbage posted by others?

Come on people,? wise up.
Re: BITX40 and uBITX Kits missing encoders for VFO! #ubitx #bitx40

Lawrence Macionski
 

Bill & Mike--- the mic looks much like a pencil -eraser end with 2 solder blobs on one end, black felt on the other.. That's the end you talk into..

The encoder is less than a postage stamp square, with a knob that rotates on top.. solder? pins on the bottom..

The BITX40 uses a 10K pot for tuning...not an encoder.

Larry W8LM
ARRL Life member - Licensed 368 DOG years..
Re: The BITeensio board is here. #ubitx

 

I've got one. I'll get back with more details later today.

Roy
WA0YMH

On Sun, Jun 17, 2018, 8:31 AM Jack Purdum via Groups.Io <jjpurdum=[email protected]> wrote:
Has anyone tried this type of scope:


(eBay 352344602558)? For $60, I'd be very interested if it works.

Jack, W8TEE

On Sunday, June 17, 2018, 1:16:28 AM EDT, Kevin Luxford <kbgluxford@...> wrote:


To my dear XYL's chagrin, I have just purchased a stereo AmScope SE400-X
microscope with fixed 5x or 10x magnifications (depending upon the
eyepice selected).? This has a 9 inch distance to the work object and a
wide field of view, so very little chance of burning one's nose with the
soldering iron. But USD200! + freight down here to Oz.? However it
provides a stereo view of the pcb with great clarity.? I understand that
freight to CONUS is free. Usual disclaimers.

73 all,
Kevin VK3DAP? / ZL2DAP





s-l1600.jpg

Re: Transmitter Mods

 

Got it; Like howard said, I will pick it up with tweezers and go vertical vs T-P.?
Re: The BITeensio board is here. #ubitx

Jack Purdum
 

Has anyone tried this type of scope:

Inline image
(eBay 352344602558)? For $60, I'd be very interested if it works.

Jack, W8TEE

On Sunday, June 17, 2018, 1:16:28 AM EDT, Kevin Luxford <kbgluxford@...> wrote:


To my dear XYL's chagrin, I have just purchased a stereo AmScope SE400-X
microscope with fixed 5x or 10x magnifications (depending upon the
eyepice selected).? This has a 9 inch distance to the work object and a
wide field of view, so very little chance of burning one's nose with the
soldering iron. But USD200! + freight down here to Oz.? However it
provides a stereo view of the pcb with great clarity.? I understand that
freight to CONUS is free. Usual disclaimers.

73 all,
Kevin VK3DAP? / ZL2DAP
Re: Alternate pop fix...

 

Alison :

Doesn't it kill the CW Sidetone with your mute connected to VOL-H ?
Ashar has his V4 pop circuit connected at M2(R70) with the value of R70 increased to 1K ohms. ?I think that this option still allows you to
hear CW sidetone.

Skip (NC9O), ?M1/M2 is connected via relay (RX voltage) so I would think that you would want to mute at M2 rather than M1/C51 to isolate the
input of the audio amp from the relay opening and closing.?

Michael VE3WMB?

P.S. Alison ... thanks for this it is very timely as I was just about to build a pop fix for my V3 board !?
Re: BITX40 and uBITX Kits missing encoders for VFO! #ubitx #bitx40

Bill Maier
 

I just received a uBITX yesterday and I'm a total noob at this. I have a small cylinder about 1 cm in diameter and 1 cm high. Is that the electret mic? If not what is it? I do have a small rectangular piece with a knob on top and pins on the bottom, which I assume is the tuning encoder.

-Bill? KG5RMJ
Re: Exciting times in the uBITx world

 

It is exciting!??

It would be great if Sunil of?amateurradiokits.in could create a "deluxe" case with a cutout for the Nextion and either room or cutouts for additional switches and pots, e.g. an RF gain pot and a bunch of push buttons.? A couple of inches of internal room for add-ons would be nice too.

Yes, I could drill my own but with my skills and tools, it won't look nearly as nice.? And Sunil's including a bag of parts with the case is awesome - pretty much everything you need to finish the txcvr.

How about it? :-)?

73,
Rowland K4XD
Re: Exciting times in the uBITx world

 

I ordered a 3.2 enhanced from ITEAD on their website. Then I looked around AliExpress and Ebay just to see the knock-offs. Funny, no particularly compelling savings (most actually more expensive) and none of the extensive support available from ITEAD (granted some for a price). Saving grace are the indications that these display are available in depth.

Looking forward to trying Ian's excellent software with this super nice display. Also, learning more about it's capability by personal experimentation.

73,

Paul - K2AYZ
Re: uBitx has a bit too crispy / semi-distorted audio even on low signal levels #ubitx #ubitx-help

 

Good Mike,

To make it ultra neat: solder back the diode and cut the track inbetween the diodes. Solder a fixed resistor
between the cut track (you need to scrape it but a resistor may fit between the two diodes pads!).
Not forgetting to measure the value you have currently adjusted the preset!

Just for information please check the DC voltages on the finals CBE points.

I guess the diode voltage drop is less than that of the transistor Vbe! I hope Farhan is listening!
This issue would not have been there if there was one more transistor and DC feedback from output
to input like an opamp!

Raj

At 17/06/2018, you wrote:

Did the biasing mod. That solved the crossover distortion issue. I took a 500 ohm pot and paralleled that with a 125ohm resistor. The mod doesn't look so good? (LOL) but it works. One of the transistors became warm if the voltage difference due to the pot became too large. I adjusted this while feeling the temp and listening to? a cw carrier: low distortion AND low temperatire, became the setting point.
(Disregard the screened cable in the lower left of the pic. That was the tap to my external amp, before biasing the original amp more properly).
[] ?
New file uploaded to [email protected]

[email protected] Notification
 

Hello,

This email message is a notification to let you know that a file has been uploaded to the Files area of the [email protected] group.

File: UBITX CASE MANUAL PCB FRONT PANEL.pdf

Uploaded By: Sunil Lakhani

Description:
A short manual of explaining how to build up the front panel board for stereo sockets For case sold by amateurradiokits.in for micro bitx.

You can access this file at the URL:
/g/BITX20/files/UBITX%20CASE%20MANUAL%20%20PCB%20FRONT%20PANEL.pdf

Cheers,
The Groups.io Team
Re: uBitx has a bit too crispy / semi-distorted audio even on low signal levels #ubitx #ubitx-help

 

Did the biasing mod. That solved the crossover distortion issue. I took a 500 ohm pot and paralleled that with a 125ohm resistor. The mod doesn't look so good? (LOL) but it works. One of the transistors became warm if the voltage difference due to the pot became too large. I adjusted this while feeling the temp and listening to? a cw carrier: low distortion AND low temperatire, became the setting point.
(Disregard the screened cable in the lower left of the pic. That was the tap to my external amp, before biasing the original amp more properly).
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