Date   

Re: Bayou Jumper and Soup'er Up'er

 

Johnny

I have had too much fun with my white faced BJ. Lots of contacts and even a POTA activation with the BJ. I am ready for a filter and sidetone. Will the Soup'er Up'er be available for my vintage BJ? Will the new BJs be able to have the Soup'er Up'er? 
I was also wondering if anyone has a completed or still in box Soup'er Up'er that they would like to sell?
Tnx

72
Peter AA2VG


Re: Circuit to use oscillator IC in place of crystal

 

Johnny,

You ought to check out the Woodpecker, a nice looking 60 meter 500-600 mW transceiver kit.  He has the kits ready and is just working on the assembly instructions.  It comes with a Channel 1 crystal, has separate AF & RF controls and RIT control 500 Hz below & 1 kHz above the TX frequency.  Other features include Direct Conversion receiver, 7 component lowpass filter, sidetone, QSK with delay, and tunable bandpass filter.   I can hardly wait to get one!

When I spoke with him last month he figured the price would be somewhere in the $60 range.

Check it out at:  https://breadboardradio.com/60-woodpecker.html

EuGene, KA5NLY


Re: Circuit to use oscillator IC in place of crystal

Johnny AC0BQ
 

Good Evening 
I just have to comment on the “Woodpecker” name.
That’s a neat name for a small radio!
72
Johnny ACØBQ 

On Sat, Dec 26, 2020 at 6:24 PM bigusmith via groups.io <bigusmith=yahoo.com@groups.io> wrote:
Darryl,

Yes, I have talked with Bill (and have a standing order for a Woodpecker xcvr).  He has only the Channel 1 crystals which he supplies with the rigs.  He hasn't ordered crystals for any other channels, as his supplier sells them only in large bulk orders for several hundred dollars, and he can't afford to buy crystals for the other channels.

EuGene

--
Check out the 4SQRP website at 4sqrp.com


Re: Circuit to use oscillator IC in place of crystal

 

Darryl,

Yes, I have talked with Bill (and have a standing order for a Woodpecker xcvr).  He has only the Channel 1 crystals which he supplies with the rigs.  He hasn't ordered crystals for any other channels, as his supplier sells them only in large bulk orders for several hundred dollars, and he can't afford to buy crystals for the other channels.

EuGene


Re: Circuit to use oscillator IC in place of crystal

Darryl K4VLP
 

EuGene,
Bill W4FSV at breadboardradio.com has developed a crystal-controlled Woodpecker rig which operates on channel 1. You might contact him to see if he can provide a source for his crystals.
73, Darryl K4VLP


Circuit to use oscillator IC in place of crystal

 

I finally gave up on finding crystals for the 60 meter channels; what I did find was custom cut crystals from $50 - $80, which I can't afford.  So, I went to Digi-Key and bought the Epson 4-pin DIP IC's for the channels I needed at $14 per channel.

So, I now have a couple of the Epson K4511 4-pin DIP oscillators for  60 meter channels #1 (5.332 mHz) and #2 (5.348 mHz) that I want to use in place of the unobtainable crystals for those frequencies.  Of course the oscillators need to be in some sort of circuit to provide the power for them to operate and to make them compatible with the transmitter so the output of the oscillator circuit can be plugged directly into the crystal socket to operate the QRPp transmitter.

I found such a simple circuit several months ago, but now cannot remember where I found it and have failed to locate it again.  Groan!  Any help will be greatly appreciated

EuGene Smith, KA5NLY


Re: K8IQY Stand Alone VXO Problem

Robert Harrison
 

Hi Curt-

Added the spare 1.2 uh choke in series as an experiment, there are two spare pads for adding 2 additional inductors in series for such experimentation on other frequencies or in this case closer to the values specified in the assembly manual.

Successfully, moved the frequency now to 7114.25 - 7125.52, figure that is "good enough", no other molded chokes just sitting around.

Trying to complete some old projects that have been sitting around unfinished, this one since 2012 was partially completed.  Was to be included with a NS-40 also unfinished.

Happy New Year,

robert kg6tgi



---- On Fri, 25 Dec 2020 19:09:27 -0800 Curt via groups.io <wb8yyy@...> wrote ----

Fantastic. Whenever you are uncertain identifying resistors and chokes, use your dvm.

It might be interesting to add a little more inductance in series to see if you can pull it lower.

Coolest vxo? The norcal 38special uses a 22 Mhz crystal that covers nearly 20 kHz, then it mixes down with another xtal to reach 30m. Would be cool to get a vxo onto 28 MHz for the next peak.

73 curt






Re: Moderator Comment on Holiday Wishes Posts

Tom Sevart
 

On 12/24/2020 21:00, Johnny AC0BQ wrote:
Merry Christmas Tom
I think we’re all looking forward
to a great new year in 2021!
72
Johnny ACØBQ
Yes, we certainly are. I'm looking forward to another Brutus Bash next year.


--
Tom Sevart N2UHC
St. Paul, KS

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Re: K8IQY Stand Alone VXO Problem

WA4EFS
 

Another similar suggestion. Amazon sells what they call a multifunction tester (range $10 - $15). These amazing devices display the schematic symbol of the part as well as its value. If you test a molded inductor it will display the inductor symbol along with the measured value. They also do transistors, diodes, capacitors, and resistors.  The one I have is more accurate than the handheld LCR meter, and measures to a lower range than the LCR meter.

 

73, -WA4EFS

 

From: main@4SQRP.groups.io [mailto:main@4SQRP.groups.io] On Behalf Of Curt via groups.io
Sent: Friday, December 25, 2020 10:09 PM
To: main@4SQRP.groups.io
Subject: Re: [4SQRP] K8IQY Stand Alone VXO Problem

 

Fantastic. Whenever you are uncertain identifying resistors and chokes, use your dvm.

It might be interesting to add a little more inductance in series to see if you can pull it lower.

Coolest vxo? The norcal 38special uses a 22 Mhz crystal that covers nearly 20 kHz, then it mixes down with another xtal to reach 30m. Would be cool to get a vxo onto 28 MHz for the next peak.

73 curt


Re: Happy Holidays!

Bill Lamm
 
Edited

Let us all purpose ourselves to make 2021 "brighter" (I like that word, it  can be many different good words for a better year) for our selves and all we meet

73
KD9MDL  Bill


Re: K8IQY Stand Alone VXO Problem

Curt
 

Fantastic. Whenever you are uncertain identifying resistors and chokes, use your dvm.

It might be interesting to add a little more inductance in series to see if you can pull it lower.

Coolest vxo? The norcal 38special uses a 22 Mhz crystal that covers nearly 20 kHz, then it mixes down with another xtal to reach 30m. Would be cool to get a vxo onto 28 MHz for the next peak.

73 curt


Re: K8IQY Stand Alone VXO Problem

Wayne McFee
 

Glad you got it sorted out.

73,

Wayne


On Dec 25, 2020, at 15:44, Robert Harrison via groups.io <rm.harrison@...> wrote:


Update, i managed to inserted the 18 ohm resistor for the 18 uh choke, K8IQY also caught that after I sent him a picture.  I missed the 5th color band on the resistor, looked at it at least three times.

Put in the correct part, now have 7118.6 to 7126 khz adjustment with VR1.  A little higher than the nominal of 7115 to 7123.

Thanks for your help and others also who responded.

robert kg6tgi



---- On Fri, 25 Dec 2020 10:34:10 -0800 Wayne McFee <nb6m@...> wrote ----

Hello Robert and Merry Christmas to you and yours,

 

The first thing I would check is if D1 is installed correctly.  Of course if it is in there backwards, I would expect you to read a somewhat normal diode voltage drop from the junction of D1 and L4 (easily measured on the exposed lead of L4) instead of the varying voltage needed in order to change its capacitance.

 

So if you measure the voltage on the junction of D1 and L4 and it does in fact vary at that point from the amount of your supply voltage down to the .6 volt diode junction drop of D2, then it must be installed correctly.  You can check for cold solder joints by measuring the resistance from the actual lead of the part to the pad of the next component it connects to.

 

You can also remove D1 and connect any old air variable capacitor you may have in its place and see what difference that makes

 

The frequency swing of only about 2 KHz suggests the behavior one would expect if there were only one crystal connected.  So if D1 is installed correctly and replacing it with an air variable doesn’t change things, then I would look carefully at L4 to be absolutely certain you don’t have the 1.2 uH coil installed there instead of the needed 18 uH. 

 

If that is OK (and you could remove it and measure its inductance if you have that ability), then I would check to be sure that the leads of each crystal are actually making good contact with their traces so that they are in fact connected properly in parallel.  Again, it is behaving like what I would expect if only one crystal was connected.

 

When paralleled crystals are used in a VXO, it would seem that the motional capacitances are multiplied instead of simply adding and that is why we are able to pull the frequency of the paralleled crystals so far away from their stated frequency.

 

The above should give you some starting places at least.

 

73,

 

Wayne  NB6M

 

 

 

 

 

From: Robert Harrison via groups.io
Sent: Thursday, December 24, 2020 8:26 PM
To: main@4SQRP.groups.io
Subject: [4SQRP] K8IQY Stand Alone VXO Problem

 

Hello,

The VXO frequency at the first test step in the instructions is incorrect, getting 7127.36 to 7129.44, s/b ~7115 to 7123, wondering if anyone else has experienced the issue and/or has suggestions.

Have visually checked the components twice, reheated solder joints, crystals measured 7122.69, 7122.71 & 7122.71 as best i can measure, voltage varies from 14 down to 0.6 v at VR1 thru to the crystals, L4 is marked as 18 uh.

thanks,
robert kg6tgi


 






Re: K8IQY Stand Alone VXO Problem

Robert Harrison
 

Update, i managed to inserted the 18 ohm resistor for the 18 uh choke, K8IQY also caught that after I sent him a picture.  I missed the 5th color band on the resistor, looked at it at least three times.

Put in the correct part, now have 7118.6 to 7126 khz adjustment with VR1.  A little higher than the nominal of 7115 to 7123.

Thanks for your help and others also who responded.

robert kg6tgi



---- On Fri, 25 Dec 2020 10:34:10 -0800 Wayne McFee <nb6m@...> wrote ----

Hello Robert and Merry Christmas to you and yours,

 

The first thing I would check is if D1 is installed correctly.  Of course if it is in there backwards, I would expect you to read a somewhat normal diode voltage drop from the junction of D1 and L4 (easily measured on the exposed lead of L4) instead of the varying voltage needed in order to change its capacitance.

 

So if you measure the voltage on the junction of D1 and L4 and it does in fact vary at that point from the amount of your supply voltage down to the .6 volt diode junction drop of D2, then it must be installed correctly.  You can check for cold solder joints by measuring the resistance from the actual lead of the part to the pad of the next component it connects to.

 

You can also remove D1 and connect any old air variable capacitor you may have in its place and see what difference that makes

 

The frequency swing of only about 2 KHz suggests the behavior one would expect if there were only one crystal connected.  So if D1 is installed correctly and replacing it with an air variable doesn’t change things, then I would look carefully at L4 to be absolutely certain you don’t have the 1.2 uH coil installed there instead of the needed 18 uH. 

 

If that is OK (and you could remove it and measure its inductance if you have that ability), then I would check to be sure that the leads of each crystal are actually making good contact with their traces so that they are in fact connected properly in parallel.  Again, it is behaving like what I would expect if only one crystal was connected.

 

When paralleled crystals are used in a VXO, it would seem that the motional capacitances are multiplied instead of simply adding and that is why we are able to pull the frequency of the paralleled crystals so far away from their stated frequency.

 

The above should give you some starting places at least.

 

73,

 

Wayne  NB6M

 

 

 

 

 

From: Robert Harrison via groups.io
Sent: Thursday, December 24, 2020 8:26 PM
To: main@4SQRP.groups.io
Subject: [4SQRP] K8IQY Stand Alone VXO Problem

 

Hello,

The VXO frequency at the first test step in the instructions is incorrect, getting 7127.36 to 7129.44, s/b ~7115 to 7123, wondering if anyone else has experienced the issue and/or has suggestions.

Have visually checked the components twice, reheated solder joints, crystals measured 7122.69, 7122.71 & 7122.71 as best i can measure, voltage varies from 14 down to 0.6 v at VR1 thru to the crystals, L4 is marked as 18 uh.

thanks,
robert kg6tgi


 






WTB: Elecraft T1 QRP Autotuner

Jim Sheldon
 

Looking to buy a used, working Elecraft T1 QRP portable antenna tuner (USA only).  Cosmetic condition is not a concern as long as it’s working.
 
Or, if anyone has an unbuilt kit with all parts complete that they don’t want to tackle due to it’s super tight parts placement, I’d consider that as well.
 
Any offers please contact me off the group to w0eb (at) cox dot net.  Prefer to pay with PayPal.
 
Jim, W0EB


Re: K8IQY Stand Alone VXO Problem

Wayne McFee
 

Hello Robert and Merry Christmas to you and yours,

 

The first thing I would check is if D1 is installed correctly.  Of course if it is in there backwards, I would expect you to read a somewhat normal diode voltage drop from the junction of D1 and L4 (easily measured on the exposed lead of L4) instead of the varying voltage needed in order to change its capacitance.

 

So if you measure the voltage on the junction of D1 and L4 and it does in fact vary at that point from the amount of your supply voltage down to the .6 volt diode junction drop of D2, then it must be installed correctly.  You can check for cold solder joints by measuring the resistance from the actual lead of the part to the pad of the next component it connects to.

 

You can also remove D1 and connect any old air variable capacitor you may have in its place and see what difference that makes

 

The frequency swing of only about 2 KHz suggests the behavior one would expect if there were only one crystal connected.  So if D1 is installed correctly and replacing it with an air variable doesn’t change things, then I would look carefully at L4 to be absolutely certain you don’t have the 1.2 uH coil installed there instead of the needed 18 uH. 

 

If that is OK (and you could remove it and measure its inductance if you have that ability), then I would check to be sure that the leads of each crystal are actually making good contact with their traces so that they are in fact connected properly in parallel.  Again, it is behaving like what I would expect if only one crystal was connected.

 

When paralleled crystals are used in a VXO, it would seem that the motional capacitances are multiplied instead of simply adding and that is why we are able to pull the frequency of the paralleled crystals so far away from their stated frequency.

 

The above should give you some starting places at least.

 

73,

 

Wayne  NB6M

 

 

 

 

 

From: Robert Harrison via groups.io
Sent: Thursday, December 24, 2020 8:26 PM
To: main@4SQRP.groups.io
Subject: [4SQRP] K8IQY Stand Alone VXO Problem

 

Hello,

The VXO frequency at the first test step in the instructions is incorrect, getting 7127.36 to 7129.44, s/b ~7115 to 7123, wondering if anyone else has experienced the issue and/or has suggestions.

Have visually checked the components twice, reheated solder joints, crystals measured 7122.69, 7122.71 & 7122.71 as best i can measure, voltage varies from 14 down to 0.6 v at VR1 thru to the crystals, L4 is marked as 18 uh.

thanks,
robert kg6tgi

 


Re: Happy Holidays!

n4mj
 

GA Johnny, et al.  Merriest of Christmas  and may 2021 be much better for the world.
73 de n4mj//glenn


 
PLEASE REMOVE all email addresses before you send it on and use BCC option when forwarding"
  Thank you! 



On Friday, December 25, 2020, 10:10:27 AM CST, Johnny AC0BQ <jomatlock@...> wrote:


Pam and I would like to wish everyone 

HAPPY HOLIDAYS!

We sincerely hope 2021 will 
be much brighter!

73
Johnny AC0BQ
Pam KE0ZWZ


--
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Happy Holidays!

Johnny AC0BQ
 

Pam and I would like to wish everyone 

HAPPY HOLIDAYS!

We sincerely hope 2021 will 
be much brighter!

73
Johnny AC0BQ
Pam KE0ZWZ


--
Check out the 4SQRP website at 4sqrp.com


Re: K8IQY Stand Alone VXO Problem

Johnny AC0BQ
 

Hello Robert
It would be your best bet to reach out to Jim Kortge.
His email is Jim.k8iqy@...

Good luck,
72
Johnny ACØBQ 


On Thu, Dec 24, 2020 at 10:26 PM Robert Harrison via groups.io <rm.harrison=zoho.com@groups.io> wrote:
Hello,

The VXO frequency at the first test step in the instructions is incorrect, getting 7127.36 to 7129.44, s/b ~7115 to 7123, wondering if anyone else has experienced the issue and/or has suggestions.

Have visually checked the components twice, reheated solder joints, crystals measured 7122.69, 7122.71 & 7122.71 as best i can measure, voltage varies from 14 down to 0.6 v at VR1 thru to the crystals, L4 is marked as 18 uh.

thanks,
robert kg6tgi

--
Check out the 4SQRP website at 4sqrp.com


K8IQY Stand Alone VXO Problem

Robert Harrison
 

Hello,

The VXO frequency at the first test step in the instructions is incorrect, getting 7127.36 to 7129.44, s/b ~7115 to 7123, wondering if anyone else has experienced the issue and/or has suggestions.

Have visually checked the components twice, reheated solder joints, crystals measured 7122.69, 7122.71 & 7122.71 as best i can measure, voltage varies from 14 down to 0.6 v at VR1 thru to the crystals, L4 is marked as 18 uh.

thanks,
robert kg6tgi


Re: Moderator Comment on Holiday Wishes Posts

 

Everyone go ahead and celebrate Christmas and wait for Santa, but I put out a sigh for Santa to stay away from my house...I don't heat with coal!!

EuGene Smith, KA5NLY


On Thursday, December 24, 2020, 8:21:47 PM CST, Tom Sevart <tmsevart@...> wrote:


On 12/24/2020 05:50, David Wilcox via groups.io wrote:
> Gentlemen,
>
> Why are we so “offended” by well wishes from persons of ANY background
> or persuasion? 

I don't know.  I'm not particularly religious but I enjoy Christmas as
much as everyone else.  Nothing wrong with peace on earth and good will
toward everyone.

So to everyone on the list, I say Merry Christmas and happy holidays.
Hope Santa brings you everything you wish for and hope we all have
better times in the coming new year.  May we all kick covid to the curb
so we can get back to having radio club meetings, QRP outings, and Ozarkcon.


--
Tom Sevart N2UHC
St. Paul, KS

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