Date   

Re: Digital Dial

Allison Parent <kb1gmx@...>
 

--- In BITX20@..., Steven Weber <kd1jv@...> wrote:

I have 17 of the kits left.

As soon as their all gone, Doug will take over the kit to make it
available
long term. Besides thier primary function of adding a digital frequency
readout to your HB rig, they can be used to match crystals to 10 Hz,
they
work well with the "Tenna Dipper", if any of you have one of those kits,
and they can be used as a basic frequency counter up to about 45 MHz.
72,
Steve, KD1JV
"Melt Solder"
White Mountains of New Hampshire
http://kd1jv.qrpradio.com
Steve,

Is this the QBSA or a differnt digital dial?

If it's QBSA that is a winner. Packaged as a desk accessory
it's been the handiest thing.

You also did smaller simpler digital dial back around
2002 that was really nice to use.


Allison


Digital Dial

kwroberson
 

Hello All , dose the digital dial produce a vfo freq or is it just a
freq read our , watt meter ???
Tnx Ken K5DNL


Digital Dial

Steven Weber <kd1jv@...>
 

I have 17 of the kits left.

As soon as their all gone, Doug will take over the kit to make it available
long term. Besides thier primary function of adding a digital frequency
readout to your HB rig, they can be used to match crystals to 10 Hz, they
work well with the "Tenna Dipper", if any of you have one of those kits,
and they can be used as a basic frequency counter up to about 45 MHz.
72,
Steve, KD1JV
"Melt Solder"
White Mountains of New Hampshire
http://kd1jv.qrpradio.com


Re: Digital Dial Troubleshooting Video

kwroberson
 

Leonard , tu info 73 Ken K5DNL


--- In BITX20@..., "Leonard" <bitx@...> wrote:

--- In BITX20@..., "kwroberson" <kwroberson@> wrote:

Greg, Hello , where do i find info on digi dial ???
tnx 73 Ken k5DNL
Ken: I don't know if Steve has any more of them but here's his post
from a few weeks ago.
Leonard

--- In BITX20@..., Steven Weber <kd1jv@> wrote:

Digital dial kits went into the mail today and everyone who
ordered
one so
far should get it soon. I still have about 35 left...

In case you missed the post on this, the digital dial uses a four
digit LED
7 segment display, is built on a 2.1" x 1.1" circuit board and
uses
mostly
SMT parts. Product details and order info at
<http://kd1jv.qrpradio.com/ddial/Ddial.HTM> and assembly manual at
<http://kd1jv.qrpradio.com/ddial.pdf>
72,
Steve, KD1JV
"Melt Solder"
White Mountains of New Hampshire
http://kd1jv.qrpradio.com


Re: Digital Dial Troubleshooting Video

Leonard <bitx@...>
 

--- In BITX20@..., "kwroberson" <kwroberson@...> wrote:

Greg, Hello , where do i find info on digi dial ???
tnx 73 Ken k5DNL
Ken: I don't know if Steve has any more of them but here's his post
from a few weeks ago.
Leonard

--- In BITX20@..., Steven Weber <kd1jv@...> wrote:

Digital dial kits went into the mail today and everyone who ordered
one so
far should get it soon. I still have about 35 left...

In case you missed the post on this, the digital dial uses a four
digit LED
7 segment display, is built on a 2.1" x 1.1" circuit board and uses
mostly
SMT parts. Product details and order info at
<http://kd1jv.qrpradio.com/ddial/Ddial.HTM> and assembly manual at
<http://kd1jv.qrpradio.com/ddial.pdf>
72,
Steve, KD1JV
"Melt Solder"
White Mountains of New Hampshire
http://kd1jv.qrpradio.com


Re: Digital Dial Troubleshooting Video

kwroberson
 

Greg, Hello , where do i find info on digi dial ???
tnx 73 Ken k5DNL


--- In BITX20@..., "Greg W:-)" <onegammyleg@...> wrote:

Yes , the D-Dial kit is great , mine worked first time too.
Probably not the best though for those people with bad eyesight or
shaky hands when your soldering those small parts.

Mine is already in a transceiver awaiting other work to be done
before
it is fully functional.

Its a good kit., especially if your cabinet was tiny which mine
(not
a bitx20) was.

For those with a larger case to work with I would go for pic based
16X1 LCD screen counter instead.

gregW:-) OH2FFY

=====================================================================

--- In BITX20@..., "Leonard" <bitx@> wrote:

I know it's not directly a bitx post but I do hook it to my bitx
at the
end and I also know this is backwards, doing the troubleshooting
video
and later posting the assembly video. No one ever accused me of
being
organized.

I assembled Steve's digital dial kit that he posted here a couple
of
weeks ago. I enjoyed the build and I made videos of the assembly
and
also a troubleshooting one. Mine worked but I went through a
troubleshooting process with waveform in case anyone has problems.

You can download the troubleshooting video at
http://golddredgervideo.com/kc0wox/digitaldialtroubleshooting.wmv

It's 212 meg in size and 19 minutes long.

The assembly video will be posted later in the week.
Leonard


Re: Digital Dial Troubleshooting Video

Greg W:-) <onegammyleg@...>
 

Yes , the D-Dial kit is great , mine worked first time too.
Probably not the best though for those people with bad eyesight or
shaky hands when your soldering those small parts.

Mine is already in a transceiver awaiting other work to be done before
it is fully functional.

Its a good kit., especially if your cabinet was tiny which mine (not
a bitx20) was.

For those with a larger case to work with I would go for pic based
16X1 LCD screen counter instead.

gregW:-) OH2FFY

=====================================================================

--- In BITX20@..., "Leonard" <bitx@...> wrote:

I know it's not directly a bitx post but I do hook it to my bitx at the
end and I also know this is backwards, doing the troubleshooting video
and later posting the assembly video. No one ever accused me of being
organized.

I assembled Steve's digital dial kit that he posted here a couple of
weeks ago. I enjoyed the build and I made videos of the assembly and
also a troubleshooting one. Mine worked but I went through a
troubleshooting process with waveform in case anyone has problems.

You can download the troubleshooting video at
http://golddredgervideo.com/kc0wox/digitaldialtroubleshooting.wmv

It's 212 meg in size and 19 minutes long.

The assembly video will be posted later in the week.
Leonard


Re: matched diodes in mixer

sg2112 <SG2112@...>
 

My digital meter uses a similar circuit to measure diodes and gives
you the reading as a voltage drop across the diode ,,,, I just match
them to within .1V on the meter ...

JR

--- In BITX20@..., "Greg Derda" <gderda@...> wrote:

There's a nice graphic of this (for other beginners like me) at the
bottom of the following page....

http://www.qrp.pops.net/xmfr.asp

Greg
ki4mmm

On Nov 11, 2007 6:15 PM, Jim Tonne <tonne@...> wrote:







Regarding matching of diodes . . .

Another way might be to connect a power supply
(say 12 volts) and a resistor to pass 1 milliampere
or so (in this case 10 to 12 k ohms) and the diode
(forward biased) all in series. Then measure the
drop across the diode. Select diodes that are within
a few millivolts of each other. Drop should be in
the 0.6 volt region.

- Jim WB6BLD



Re: matched diodes in mixer

Greg Derda
 

There's a nice graphic of this (for other beginners like me) at the
bottom of the following page....

http://www.qrp.pops.net/xmfr.asp

Greg
ki4mmm

On Nov 11, 2007 6:15 PM, Jim Tonne <tonne@...> wrote:







Regarding matching of diodes . . .

Another way might be to connect a power supply
(say 12 volts) and a resistor to pass 1 milliampere
or so (in this case 10 to 12 k ohms) and the diode
(forward biased) all in series. Then measure the
drop across the diode. Select diodes that are within
a few millivolts of each other. Drop should be in
the 0.6 volt region.

- Jim WB6BLD



Re: Havnt got my BITX20A kit yet?

vk5hbl
 

--- In BITX20@..., "Ken Harrigan" <kenharrigan@...> wrote:

Morning Darren:

I ordered one as well about that same time. I just received a
message
stating that I should be getting one this weekend or early next
week.
I believe that you should be in that group as well.

I see that you ordered a "Digital dial kit." What is that? I
haven't
seen such a kit. Can you elaborate.

Thanks,

Ken
KZ4Y

Hello Ken
Check out this link for more info

http://kd1jv.qrpradio.com/ddial/Ddial.HTM

cheers
Darren
VK5HBL


Re: matched diodes in mixer

Jim Tonne <tonne@...>
 

Regarding matching of diodes . . .

Another way might be to connect a power supply
(say 12 volts) and a resistor to pass 1 milliampere
or so (in this case 10 to 12 k ohms) and the diode (forward biased) all in series. Then measure the drop across the diode. Select diodes that are within
a few millivolts of each other. Drop should be in
the 0.6 volt region.

- Jim WB6BLD


Re: voltage charts?

Arv Evans
 

Joe

I started to build voltage charts but didn't get the job finished due to
other interruptions.

Possibly someone else could do a voltage chart for receive and transmit
modes, or just check some voltages for the VFO area which you need for
troubleshooting?

Arv
_._


cornhusker wrote:


HI!
Are there voltage charts available so we can troubleshoot? I am having
trouble getting my VFO to go and have checked the toroid, etc. The
other sections seem to be OK.
73, Joe K0NEB


Digital Dial Troubleshooting Video

Leonard <bitx@...>
 

I know it's not directly a bitx post but I do hook it to my bitx at the
end and I also know this is backwards, doing the troubleshooting video
and later posting the assembly video. No one ever accused me of being
organized.

I assembled Steve's digital dial kit that he posted here a couple of
weeks ago. I enjoyed the build and I made videos of the assembly and
also a troubleshooting one. Mine worked but I went through a
troubleshooting process with waveform in case anyone has problems.

You can download the troubleshooting video at
http://golddredgervideo.com/kc0wox/digitaldialtroubleshooting.wmv

It's 212 meg in size and 19 minutes long.

The assembly video will be posted later in the week.
Leonard


voltage charts?

cornhusker
 

HI!
Are there voltage charts available so we can troubleshoot? I am having
trouble getting my VFO to go and have checked the toroid, etc. The
other sections seem to be OK.
73, Joe K0NEB


Re: matched diodes in mixer

n7ve <dan.Tayloe@...>
 

Diode matching is not really needed since we have added both a C and a
R trimmer to get a good carrier null.

However, to match the diode, measure the resistance using an ohm meter
and match the forward resistance.

- Dan, N7VE

--- In BITX20@..., "Uli" <uli@...> wrote:

Hi all,
in an older thread it is mentioned to use matched diodes 1N4148 for
better performance.
I have here many 1N4148 and now my question:
How can I match the 1N4148

Thanks

73
Uli
DF5SF


matched diodes in mixer

Uli <uli@...>
 

Hi all,
in an older thread it is mentioned to use matched diodes 1N4148 for
better performance.
I have here many 1N4148 and now my question:
How can I match the 1N4148

Thanks

73
Uli
DF5SF


New file uploaded to BITX20

BITX20@...
 

Hello,

This email message is a notification to let you know that
a file has been uploaded to the Files area of the BITX20
group.

File : /Hendricks QRP Kits BITX20A/BITX20A Additional Build Notes v5.pdf
Uploaded by : n7ve <dan.Tayloe@...>
Description : BITX20A Additional Build Notes Update

You can access this file at the URL:
http://groups.yahoo.com/group/BITX20/files/Hendricks%20QRP%20Kits%20BITX20A/BITX20A%20Additional%20Build%20Notes%20v5.pdf

To learn more about file sharing for your group, please visit:
http://help.yahoo.com/help/us/groups/files

Regards,

n7ve <dan.Tayloe@...>


BITX20 & SpecLab

francisco barcelos <fcobarcelos@...>
 

Hello!
Is it necessary an interface between sound car and the rig?to run SpecLab on differents parameters?
Or could be thr/o mic ?
Vy 72/3
Francisco.PY9FP
Brazil


Abra sua conta no Yahoo! Mail, o único sem limite de espaço para armazenamento!
http://br.mail.yahoo.com/

[Non-text portions of this message have been removed]


Re: Manual errors

kwroberson
 

Arv , TU 73 Ken K5DNL




-- In BITX20@..., Arv Evans <arvid.evans@...> wrote:

Ken

I'm not sure if Doug has the capability to directly edit .pdf
files, so
I have made the necessary Assembly Manual corrections and forwarded
new
copies of .pdf, .doc, and .odt versions to him.

Arv
_._


kwroberson wrote:

Hello All, BitX20A manual on the internet is still wrong
C-76 sud be .01 marked 103 -- R73 Sud Be 2.7 K ohm.
If u go by the manual when u get down to the last resistor
it will be 2.7 K ohm not 2.2 K ohm , that calls for rework
which is never a good thing.
Have Fun 73 Ken K5DNL


[Non-text portions of this message have been removed]


Re: Manual errors

Arv Evans
 

Ken

I'm not sure if Doug has the capability to directly edit .pdf files, so
I have made the necessary Assembly Manual corrections and forwarded new
copies of .pdf, .doc, and .odt versions to him.

Arv
_._


kwroberson wrote:


Hello All, BitX20A manual on the internet is still wrong
C-76 sud be .01 marked 103 -- R73 Sud Be 2.7 K ohm.
If u go by the manual when u get down to the last resistor
it will be 2.7 K ohm not 2.2 K ohm , that calls for rework
which is never a good thing.
Have Fun 73 Ken K5DNL