Date   
Re: The Transition Process Has Begun

Johnny AC0BQ
 

Thanks Tim, Gary
We aporeciate your efforts on setting up the swap.
72
Johnny AC0BQ 


On Thu, Dec 7, 2017 at 6:00 PM Tim McDonough N9PUZ <tim.n9puz@...> wrote:
Groups.io informed me that everything is in place to begin the 4SQRP migration and I have given them the go-ahead to proceed. Hopefully things will go smoothly but "hang on"!

Posting to the old list has been disabled. Gary and I will not be approving new members until the move is complete.

Tim N9PUZ, Moderator

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

The Transition Process Has Begun

Tim N9PUZ
 

Groups.io informed me that everything is in place to begin the 4SQRP migration and I have given them the go-ahead to proceed. Hopefully things will go smoothly but "hang on"!

Posting to the old list has been disabled. Gary and I will not be approving new members until the move is complete.

Tim N9PUZ, Moderator

MODERATOR NOTE: Moving to groups.io

tim.n9puz@...
 

As mentioned the other day we are moving the 4SQRP Group from Yahoo to groups.io.  This transition should happen seamlessly and current  members should not have to take any action.


The reason for this change is continuing concerns about the security of Yahoo systems. We feel this move is in the best interest of 4SQRP and our mailing list members.


To make the move go smoothly we have disabled posting to the list. This will only be until the transition is complete and afterwards you will be able to post as before. You will have to change the address where you send new messages to the list. More information will be sent regarding the changes in the next day or so.


Thank you for your patience as we make this transition.


The 4SQRP List Moderators and Board of Directors.

Re: FrankenCricket - Update!

Brian Crittendon
 

  I like your mods. I want to use my bug or straight key. OT  4 square says the 80a will put out more then a watt. So my question is can I run more then 9 volts without hurting the receiver ?

FrankenCricket - Update!

Dave Redfearn
 

Thanks to Dave, NM0S, who pointed me in the right direction on the RX muting circuit.


So D1 is correct on the 80A schematic.

After fixing that I still had RX muted so I swapped out the 180 pf cap and finally the 2N7000.

The 2N7000 was the problem and the new one fixed it!

I either had a bad one out the bag or killed it while troubleshooting.


I did make a QSO to MS Monday night but with local QRN, I had trouble hearing the other station but will keep trying.


Based on the change in the keying circuit between the 80 & 80A, I realized I had a potential ground reversal when using the key jack adaptor from the 80 with my external keyer. I wanted to keep the straight key anyway, so I remounted the key jack at the right rear of the board and re-attached the straight key. Now I use either one quickly.


I still want to see if the tuning range can be increased by modifying C15 and try to add an audio filter.


A couple of you have asked, so here are the parts I used to upgrade the 80 to the 80A (80A parts designations used): 


Q1 – 2N7000

Q7 – SS8558 PNP

D2 – 1N914

D3 – 1N914

R1 – 1 K

R2 – 1 Meg

R3 – 1 Meg

R6 – 1 Meg

R10 - 10 K

R11 - 4.7 K

C8 - .1 uf

C15 – 15 pf (I used a 22pf trimmer)

C17 - .1 uf

L4 – 56 uH (I used a 68 uH)

SW1 switch (not installed yet)


73 - Dave, N4ELM



Re: WA5BDU, Hoping to Contact Him

w2sh@...
 

Thank you Mike for this.


I had only put two "n"s in his e-mail address instead of three and of course it bounced.


72,


Charles, W2SH




From: 4sqrp@... <4sqrp@...> on behalf of 'Mike Czuhajewski' wa8mcq@... [4sqrp] <4sqrp@...>
Sent: Wednesday, December 6, 2017 1:29 AM
To: 4sqrp@...; Charles Moizeau
Subject: Re: [4sqrp] WA5BDU, Hoping to Contact Him
 
 

>... If Nick or any one else could give me his current e-mail address,
>I'd be most grateful........

Try this, taken from a post to another list he made a couple of weeks
ago:

kennnick@...

Re: WA5BDU, Hoping to Contact Him

Mike Czuhajewski
 

... If Nick or any one else could give me his current e-mail address, I'd be most grateful........
Try this, taken from a post to another list he made a couple of weeks ago:

kennnick@...

Re: FrankenCricket - It's alive!

ai9e_qrp@...
 

The polarity of D1 is shown correctly on the 80A schematic.  The diode is used to extend the muting action after the key is opened to eliminate clicking in the headphones.

73 Dave NM0S

Re: FrankenCricket - It's alive!

wa2cky
 

Nice work and thank you, Dave, for your report!  I also have a 'unfinished' Cricket and maybe I will upgrade to the 80A level .... or maybe I'll just buy a new one!  One thing that would be handy would a list of any new parts that are needed to do the conversion - it is always handy to have what you need already on hand.

73
Bob Groh, WA2CKY

On Tue, Dec 5, 2017 at 10:06 AM, n4elm@... [4sqrp] <4sqrp@...> wrote:
 

After Ozarkcon 2017, I ordered and received a Cricket 80 kit and stuck it on the shelf for "later".

The open board design was OK but I thought I might want to build one into a box so I ordered additional parts from overseas and from Tanner's (Carrolton, TX) on my occasional trips up to see the grandkids.

Recently I saw that the kit had been upgraded to the 80A, so I figured out the additional parts needed and after the most recent trip to see the grandkids had all the parts together and thought I could implement the new 80A circuit on the older 80 PCB.

Last Sunday, I opened up the Cricket kit, looked through the baggies of parts and realized that the kit had no semiconductor parts - no diodes, FETs, or IC!


NO BRAINS, the Cricket had NO BRAINS! Must have BRAINS!


Wait! I had a complete set of parts on hand for the additional Cricket in a Box project, so I did a BRAINS transplant to the PCB and after cutting traces (sometimes the wrong ones), swapping parts, bridging traces, and running new wires, FrankenCricket lives!

It puts out 1/2 watt and receives signals using several of the 80 meter crystals that I have. 


I would not recommend modding the 80 PCB to a 80A. It really takes some careful planning of the trace cuts, new wires, and parts placement which I did not do well. 


I used the 80A schematic for the build and found that D1 is reversed on the schematic.

The D1 cathode needs to be connected to the junction of Q4 & C18 to unmute the audio in receive properly.

I used an on-hand 68 uh choke for L4.

I used a small ceramic 22 pf trimmer for C15 to allow the receive offset to be shifted slightly.


I copied a couple of picture up to the files section, its not too pretty but it seems to work!


So be listening for a chirping Cricket from the bayous of Louisiana!


73 - Dave, N4ELM



Re: CRICKETEERS - WHY CHOOSE? DO BOTH !

Tom Sevart
 

On 12/04/17 20:51, Gary Lyons gary.w0gx@... [4sqrp] wrote:
Well done Tom!  Love it when simple tweaks are shared.  Thanks.
For anyone interested in how I connected the PNP transistor to use an electronic keyer with the Cricket, I've uploaded the modified schematic. This schematic also includes the mods I did to make the Cricket accept other crystals. It can be found here: https://www.dropbox.com/s/q5lxnwg0o183p1z/Cricket%20schematic.jpg?dl=0

An external keyer or straight key can be connected to the jack. The red LED will light upon keydown either with a key or keyer connected to the jack or the on-board key. I used a 2N5416 transistor but probably any high-current PNP can be used. I don't know if something like a 3906 would provide enough current or not or get too hot, but the 5416 doesn't even get warm on keydown.

You can see the key jack and the two LED's off to the right side of the board in this picture: https://www.dropbox.com/s/hik3ktz4jrsv1cx/Cricket%202.jpg?dl=0 The PNP transistor is attached to the bottom of the board as well as the current limiting resistors for the LED's.

You can also see that the other mods I performed was to mount the headphone and antenna jacks vertically. This was done in order to fit the Cricket board into the box I bought for it. I merely removed the supplied BNC and drilled a large hole for the panel mount BNC, then soldered a wire from it to C5. The headphone jack I simply bent a couple of the leads down to mount it vertically, then a wire from the center pin on the jack to its connection on the board. I secured it with epoxy to the board to relieve strain on the solder connections.

--
Tom Sevart N2UHC
St. Paul, KS

WA5BDU, Hoping to Contact Him

w2sh@...
 

According to other logs received for the 160m Fox hunt Extravaganza, Nick participated in that event, held on the Tuesday preceding Thanksgiving. 


An e-mail requesting stations he'd QSOd sent to his address listed in QRZ bounced.  If Nick or any one else could give me his current e-mail address, I'd be most grateful to be able to reach him in order to bring the census of participants up to date.


Thanks to any or all.


72,


Charles, W2SH

4SQRP # 0085


SSS is this Sunday

John Lonigro
 

Don't forget!  The final Second Sunday Sprint of 2017 is this coming Sunday, December 10th, from 7 - 9 pm CST.  (that's 0100-0300Z Monday).  And next Wednesday, I'll tabulate the scores and announce the winners, both for December and for the entire year.  The awards will be, as usual, beautiful certificates suitable for framing.  I spared no expense in making them.  Well, actually, I spent no expense making them, but they look pretty good anyway, as long as you have a decent printer with which to print them.

72 and good luck in the contest,

John, AA0VE
4SQRP Contest Coordinator

FrankenCricket - It's alive!

Dave Redfearn
 

After Ozarkcon 2017, I ordered and received a Cricket 80 kit and stuck it on the shelf for "later".

The open board design was OK but I thought I might want to build one into a box so I ordered additional parts from overseas and from Tanner's (Carrolton, TX) on my occasional trips up to see the grandkids.

Recently I saw that the kit had been upgraded to the 80A, so I figured out the additional parts needed and after the most recent trip to see the grandkids had all the parts together and thought I could implement the new 80A circuit on the older 80 PCB.

Last Sunday, I opened up the Cricket kit, looked through the baggies of parts and realized that the kit had no semiconductor parts - no diodes, FETs, or IC!


NO BRAINS, the Cricket had NO BRAINS! Must have BRAINS!


Wait! I had a complete set of parts on hand for the additional Cricket in a Box project, so I did a BRAINS transplant to the PCB and after cutting traces (sometimes the wrong ones), swapping parts, bridging traces, and running new wires, FrankenCricket lives!

It puts out 1/2 watt and receives signals using several of the 80 meter crystals that I have. 


I would not recommend modding the 80 PCB to a 80A. It really takes some careful planning of the trace cuts, new wires, and parts placement which I did not do well. 


I used the 80A schematic for the build and found that D1 is reversed on the schematic.

The D1 cathode needs to be connected to the junction of Q4 & C18 to unmute the audio in receive properly.

I used an on-hand 68 uh choke for L4.

I used a small ceramic 22 pf trimmer for C15 to allow the receive offset to be shifted slightly.


I copied a couple of picture up to the files section, its not too pretty but it seems to work!


So be listening for a chirping Cricket from the bayous of Louisiana!


73 - Dave, N4ELM


New file uploaded to 4sqrp

4sqrp@...
 

Hello,

This email message is a notification to let you know that
a file has been uploaded to the Files area of the 4sqrp
group.

File : /FrankenCricket-80A/20171205_074842.jpg
Uploaded by : n4elm <@n4elm>
Description :

You can access this file at the URL:
https://groups.yahoo.com/neo/groups/4sqrp/files/FrankenCricket-80A/20171205_074842.jpg

To learn more about file sharing for your group, please visit:
https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398

Regards,

n4elm <@n4elm>

New file uploaded to 4sqrp

4sqrp@...
 

Hello,

This email message is a notification to let you know that
a file has been uploaded to the Files area of the 4sqrp
group.

File : /FrankenCricket-80A/20171204_222930.jpg
Uploaded by : n4elm <@n4elm>
Description :

You can access this file at the URL:
https://groups.yahoo.com/neo/groups/4sqrp/files/FrankenCricket-80A/20171204_222930.jpg

To learn more about file sharing for your group, please visit:
https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398

Regards,

n4elm <@n4elm>

New file uploaded to 4sqrp

4sqrp@...
 

Hello,

This email message is a notification to let you know that
a file has been uploaded to the Files area of the 4sqrp
group.

File : /FrankenCricket-80A/20171205_074857.jpg
Uploaded by : n4elm <@n4elm>
Description :

You can access this file at the URL:
https://groups.yahoo.com/neo/groups/4sqrp/files/FrankenCricket-80A/20171205_074857.jpg

To learn more about file sharing for your group, please visit:
https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398

Regards,

n4elm <@n4elm>

The Magic Box is sold

Walter - K5EST
 

Thanks Everyone, appreciate letting us help folks with a needed kit.

Walter Dufrain - K5EST 
Twitter for 4SQRP...  @4sqrpGroup
Kit Mgr .. kitmgr4sqrp@...
Ozarkcon Coordinator ..ozarkconcoordinator@...
Editor, Ozark QRP Banner .. editorqrpbanner@...








Re: 4SQRP/K8IQY "Magic Box TR Switching System"

Jeffrey Peters <k9jp.radio@...>
 

Hello Walter,

If the last Magic box kit is still available i would like to purchase it.

Thanks, Jeff K9JP

On Mon, Dec 4, 2017 at 8:51 PM, Walter - K5EST walter.k5est@... [4sqrp] <4sqrp@...> wrote:
 


Hello Everyone, we have one Magic Box Switching System kit available. This is a new kit and will be shipped from the kitter. The discounted price is $45.00 shipped conus.

The Magic Box is a discontinued kit. This is your chance to couple a receiver and transmitter into a transceiver package, and the kit info is at the bottom of the kits page..... or here..  http://www.4sqrp.com/MagicBox.php


If you wish to purchase the Magic Box kit, send me an email then we can get you set up with the Group Treasurer, Tom - W0MFQ for a payment by check. This kit is not set up on PayPal.
73,
Walter Dufrain - K5EST 
Twitter for 4SQRP...  @4sqrpGroup
Kit Mgr .. kitmgr4sqrp@...
Ozarkcon Coordinator ..ozarkconcoordinator@gmail.com
Editor, Ozark QRP Banner .. editorqrpbanner@...











--
Not all of me will die - - - The good I do for others will live on forever.  <><

Re: CRICKETEERS - WHY CHOOSE? DO BOTH !

gary Lyons
 

Well done Tom!  Love it when simple tweaks are shared.  Thanks.

4SQRP/K8IQY "Magic Box TR Switching System"

Walter - K5EST
 


Hello Everyone, we have one Magic Box Switching System kit available. This is a new kit and will be shipped from the kitter. The discounted price is $45.00 shipped conus.

The Magic Box is a discontinued kit. This is your chance to couple a receiver and transmitter into a transceiver package, and the kit info is at the bottom of the kits page..... or here..  http://www.4sqrp.com/MagicBox.php


If you wish to purchase the Magic Box kit, send me an email then we can get you set up with the Group Treasurer, Tom - W0MFQ for a payment by check. This kit is not set up on PayPal.
73,
Walter Dufrain - K5EST 
Twitter for 4SQRP...  @4sqrpGroup
Kit Mgr .. kitmgr4sqrp@...
Ozarkcon Coordinator ..ozarkconcoordinator@...
Editor, Ozark QRP Banner .. editorqrpbanner@...