Date   

Re: NDBs Logged Tonight

Bry Carling <af4k@...>
 

Many modern rigs made by Yaesu, Kenwood, Icom etc. will tune in those LF bands.


I used to log a LOT Of the LF beacons while listening on a SONY ICF-2010 which gave remarkably good reception at LF.


Bry AF4K




From: 4sqrp@... <4sqrp@...> on behalf of John Raynsford al7jk@... [4sqrp] <4sqrp@...>
Sent: Thursday, December 29, 2016 1:09 AM
To: 4sqrp@...; Dennis Gaskill; Sam Neal; wa0itp@...
Subject: Re: [4sqrp] Re: NDBs Logged Tonight
 
 

Thanks for the link Dennis, KC0IFQ. Rummaged through
some boxes and dug out my Palomar Engineers VLF
converter, listening to Dutch Harbor on 283 khz. Haven't
tuned through those frequencies in years !

72/73 to all  de AL7JK



On Monday, December 26, 2016 5:34 AM, "WA0ITP wa0itp@... [4sqrp]" <4sqrp@...> wrote:


 
Great fun.  I use an Icom 756 Pro III, LSB, and 1.8k filter setting.  It takes me about a half hour to scan the band, tuning slow and stopping often, i.e. listening deep. Some signals are right at the noise level.  I'm thinking that a low pass filter in front of the receiver to knock down the broadcast band would be useful. I'm getting some mixing products and overloading due to a BCB station about 2 miles away.
72 WAØITP
I love this radio stuff.
www.wa0itp.com
www.4sqrp.com
www.wa0itp.com
WAØITP's Ham Radio Web Site Devoted to QRP Operating.
On 12/26/2016 12:29 AM, Dennis Gaskill gaskilldg@... [4sqrp] wrote:
 
I recounted the beacons, I had copied and I it was approaching 40 .......I only had 38 ......
You want to tune slowly , because the CW is so slow that there is a pretty good gap before the beacon starts over .
If you do PSK you can look for the signals on the waterfall as you sweep the band .

Dennis KC0IFQ

On Sun, Dec 25, 2016 at 8:14 PM, Sam Neal <n5af@...> wrote:

What receivers/antennas are y'all using. I only hear HRD on about 423 kHz at
the Hardin County airport, Kountze Texas near Beaumont, about 40 miles away,
using a 40 meter dipole. Tomorrow I will try a different receiver.

Sam. Neal. N5AF
.........................

------ Original Message ------
Received: 10:03 AM CST, 12/22/2016
From:
"Dennis Gaskill gaskilldg@ gmail.com [4sqrp]" <4sqrp@ yahoogroups.com>
To: 4sqrp@...
Subject: [4sqrp] Re: NDBs Logged  Tonight

Here is a list of North American beacons

http://dxinfocentre.com/ndb. htm

Just use the search function in your web browser to find the Call Sign you
think you heard.

The noise is pretty bad .
I learned a little abut digging slow CW out of the noise.
I think I was approaching 50 beacons.

My QTH is close to Wichita, Ks so most beacons are I hear are
...........whadda you know , in the 4SQRP area.
Oklahoma, Kansas , Iowa, Texas, Missouri
The modulation or tone is kinda weird on many of them . You have to tune
carefully and play with all
your filters. I am using a Kenwood 590SG and a 130 ft OFC for a antenna.

Dennis KC0IFQ








MORE: Free To A Good Home(s)

Bry Carling <af4k@...>
 

I have to give away (no postage charges!!)


to the first 5 people who e-mail me OFF the list:


TOTAL of FIVE (5) of these:

3742 kHz hc6u crystal


These are good, tested crystals. I am sure some of you can find a use for them.

We do periodic give-aways, usually on the CRYSTAL SWAP list over at

mailman.qth,net


73 de AF4K, Bry Carling





Re: An The Winners(s) Is - Free To A Good Home(s)

Bry Carling <af4k@...>
 

7140 kHz is a VERY valuable frequency for crystals!

It puts you on the AM Calling Frequency for 15m in most classic AM transmitters. 7140 X 3 = 21.420 MHz


See you there!


73 de AF4K



From: 4sqrp@... <4sqrp@...> on behalf of 'Sam Neal' n5af@... [4sqrp] <4sqrp@...>
Sent: Thursday, December 29, 2016 12:12 PM
To: 4sqrp@...; Sam Neal
Subject: [4sqrp] An The Winners(s) Is - Free To A Good Home(s)
 
 


Hello,

Thanks for the interest in these old rocks, and I only wish I had enough to
have given everyone one.

The winner(s) is as follows:

Xtal #1: Bill AB1AV
Xtal #2: Jim WA7DUY
Xtal #3: Mike AA9AA ( 7147 will put you near the 7140 or 7160 AM frequency
with your DX-60.) Wanna try for a DX-60 to DX-60 QSO some times?

Hello,

I have three good 40 meter amateur band FT-243 crystals - free of course -
and
I pay the postage to anyone who needs one and will use it. I take your word
on
that. I just tested all three of them and they sounded good, using them with
my DL3ECH (?) AC-1 clone-kit - 6V6 tube at 4 Watts output , using my Icom
756PROII to check the frequency. No chirps and no drifting using the 6V6 tube
rig. I will hit " send " at 6 PM CST to give everyone a good chance at one.

Due to their being semi-rare, they will be one to a customer. They are
perfect
for the FT-243 sockets normally used on tube rigs, but the pins will be too
big for solid state rigs which normally use the smaller HC-49U case xtals
which are normally wired in place.

...............................................................................................

Xtal #1: FT-243 case by Westline/West Xtals - doesn't appear to have ever
been opened, although it may have a smaller HC-49U implanted in it's belly.(
A
pregnant crystal? ) Marked Frequency is 7122. Measured frequency is 7123.59.

Xtal #2: FT-243 case by CW Crystals - Marshfield, MO ( I bought about 20
FT-243s from him about a month before his passing ). Marked frequency is
7125,
measured frequency is 7124.60.

Xtal #3: Aluminum case type PR Z-9 with larger pins sweated over it's
smaller
wires to make it into a FT-243. Marked Frequency 7147. Measured frequency is
7145.2. This was ordered by me for a QRP group that used to be on that
frequency before the phone band expansion left in up there with the phonies.

Enjoy! I will thin the herd some more later.

73,

Sam Neal N5AF


Re: FT243 crystal grinding.

Bry Carling <af4k@...>
 

Great story Rex - thank you for posting this, and the article!


73 - Bry AF4K



From: 4sqrp@... <4sqrp@...> on behalf of Rex Harper w1rex@... [4sqrp] <4sqrp@...>
Sent: Wednesday, December 28, 2016 10:08 PM
To: 4sqrp@...
Subject: [4sqrp] FT243 crystal grinding.
 
 

Gangue,

The crystal grinding workshop at Ozarkcon was given by Darrel Brehm, WA3OPY,  Ron Hale, AC5UR, and me, W1REX. My friends Darrel and Ron both work at International Crystal Manufacturing in Oklahoma City and I, of course, 'work' at QRPme. The boys at ICM provided some frequency counting equipment while I supplied the FT243 crystals and my special crystal oscillators. My unique contribution to the art of crystal grinding was the crystal oscillators. They were based on the ubiquitous universal crystal oscillator circuit with a twist. I  built the oscillators inside tuna cans with a bare copper pcb on the top of the can. The entire copper pcb was a grounding plate where you placed the crystal for frequency measurement. The second electrode for the FT243 crystal was a copper plumbing cap attached to a wire going a Manhattan pad which is also connected to the pcb to the oscillator inside.

The procedure was to FIRST measure the unmodified FT243 crystal holding the FT243 to the Manhattan pad and ground plate.

Then you take apart the FT243 and measure the frequency of the blank by placing it on the pcb ground plate and placing the plumbing cap electrode on top.

Now you can slowly add lead shot, BBs or any other uniform small weights into the plumbing cap until the frequency reads sufficiently CLOSE to the original unmodified frequency. Now you have the cap fixture 'tuned' to the spring & pressure plates inside the FT243 holder.

You can do some grinding... we used Bon Ami on 1/2" plate glass grinding surfaces. Clean the blanks thoroughly with distilled water, dry with hot air and test in the cap fixture.

Once you get a reading you are happy with, you reassemble the FT243 using your new blank and you should then be fairly spot on to the desired frequency.  I scored on a big batch of 6975 FT243s and we successfully moved them all to 7030 which was a hard to find crystal in those days...I wrote up the whole process and did a kit run of the oscillator at FDIM... It was my first attempt at a NO Solder Buildathon. We did it live over the Internet and it was billed as the FDIM Build-A-Long.

Link here:http://qrpme.com/?p=product&id=BAK

qrpme.com
Price: $0.00: © 2010 W1REX - QRPme Web design: N5DUX


Rex  W1REX


An The Winners(s) Is - Free To A Good Home(s)

Sam Neal
 

Hello,

Thanks for the interest in these old rocks, and I only wish I had enough to
have given everyone one.

The winner(s) is as follows:

Xtal #1: Bill AB1AV
Xtal #2: Jim WA7DUY
Xtal #3: Mike AA9AA ( 7147 will put you near the 7140 or 7160 AM frequency
with your DX-60.) Wanna try for a DX-60 to DX-60 QSO some times?

Hello,

I have three good 40 meter amateur band FT-243 crystals - free of course -
and
I pay the postage to anyone who needs one and will use it. I take your word
on
that. I just tested all three of them and they sounded good, using them with
my DL3ECH (?) AC-1 clone-kit - 6V6 tube at 4 Watts output , using my Icom
756PROII to check the frequency. No chirps and no drifting using the 6V6 tube
rig. I will hit " send " at 6 PM CST to give everyone a good chance at one.

Due to their being semi-rare, they will be one to a customer. They are
perfect
for the FT-243 sockets normally used on tube rigs, but the pins will be too
big for solid state rigs which normally use the smaller HC-49U case xtals
which are normally wired in place.

...............................................................................................

Xtal #1: FT-243 case by Westline/West Xtals - doesn't appear to have ever
been opened, although it may have a smaller HC-49U implanted in it's belly.(
A
pregnant crystal? ) Marked Frequency is 7122. Measured frequency is 7123.59.

Xtal #2: FT-243 case by CW Crystals - Marshfield, MO ( I bought about 20
FT-243s from him about a month before his passing ). Marked frequency is
7125,
measured frequency is 7124.60.

Xtal #3: Aluminum case type PR Z-9 with larger pins sweated over it's
smaller
wires to make it into a FT-243. Marked Frequency 7147. Measured frequency is
7145.2. This was ordered by me for a QRP group that used to be on that
frequency before the phone band expansion left in up there with the phonies.

Enjoy! I will thin the herd some more later.

73,

Sam Neal N5AF


Re: Jumper

Bry Carling <af4k@...>
 

We hope to hear you in the Novice Rig Roundup, Tim. I know a lot of guys will be listening carefully for those rigs. We tune around for crystal control stations and do not always operate on the same freqs for transmit and receive. Especially above 7100 kHz.


Hopefully plenty of Bayou jumpers will be active for SKN this Saturday as well as the NRR In February!


Bry AF4K



From: 4sqrp@... <4sqrp@...> on behalf of Tim O'Rourke w4yn@... [4sqrp] <4sqrp@...>
Sent: Thursday, December 29, 2016 7:41 AM
To: 4sqrp@...
Subject: [4sqrp] Jumper
 
 

Rx mine yesterday, wow the PC board and face plate are works of art!
Now to get building. I do have lots of 243 crystals from novice 1 tube rig!
Tim W4YN

---
This email has been checked for viruses by Avast antivirus software.
https://www.avast.com/antivirus


Jumper

Tim
 

Rx mine yesterday, wow the PC board and face plate are works of art!
Now to get building. I do have lots of 243 crystals from novice 1 tube rig!
Tim W4YN


Re: 4QRP Email Blog

Johnny AC0BQ
 

Nice Job Walter, 
Thanks 

On Wed, Dec 28, 2016 at 7:55 PM Walter - K5EST walter.k5est@... [4sqrp] <4sqrp@...> wrote:



















































4QRP
The original email blog of the 4SQRP Group -- copyright December 2016
Walter - K5EST - Editor



The Bayou Jumper

The famous Bayou Jumper is in high demand! Thank you everyone for supporting the designers and 4SQRP to help fund OzarkCon.

Yes, we suspended sales while the kitter gets time to restock and we had a shock of one component having a 15 to 17 weeks wait from the manufacturer. HA....well don't worry since a cache was found which is already purchased. Please watch the 4SQRP and QRP email reflectors for updates when sales and shipping can resume............de K5EST

 🎌


Grinding Crystals Ideas

The Ancients were used to grinding crystals to get on the desired frequency. In our modern times, folks just spin the VFO! There is something sacred about using rock bound radio equipment. Skill and clever operating times will normally yield contacts. 

Doing a simple search on Google, "grinding radio crystals" gave more results than expected. Do a Google or whatever search engine you use for more information.

One of our 4SQRP members, Nick - WA5BDU has a nice FT-243 grinding webpage......see http://wa5bdu.blogspot.com/2011/03/ft243-crystal-grinding.html

🎌

Reverse Beacon Network

The Reverse Beacon Network (RBN) is a great help is determining your transmitter and antenna combination. Ever wonder where the beacon ears are located? How far am I being heard? The great news is if you will go to the RBN website an answer to many questions is at your fingertips........    http://www.reversebeacon.net/nodes/detail.php


🎌

Hello 2017

January 8, 2017 is the date of the Second Sunday Sprint (SSS). Please watch the 4SQRP reflector for the announcements and if you can join in then you can have extra fun on a Sunday night.

April 7 and 8, 2017 OZARKCON in Branson, MO. Attendance last year was the biggest ever and we want you to enjoy another amazing QRP Conference this year. Here are the stats.......

Database Records of Attendance for each Year
Data for event years prior to those shown were not captured in the database.
YearConfirmed RegistrationsStates Represented
201614818
201513419
201411717
201311117
201210816
201111116

The following QTH's have been represented at OzarkCon Events: 
AL, AR, AZ, CA, CO, FL, GA, Hampshire England, IA, ID, IL, IN, KS, LA, ME, MI, MN, MO, MS, ND, NE, NH, NM, OK, SC, TN, TX, UT, VA, WI

🎌

Antenna Reading and Ideas

Running QRP is challenging sometimes and a good antenna is your signal print to the other station. Being antenna challenged by HOAs, space restrictions, etc are a normal event in the lives of QRP operators. A FREE (my kinda price) Antenna book can be downloaded which is about 20MB. Antentop homepage is at    http://www.antentop.org/

 
🎌

That is the end of the 4QRP blog for 2016

Happy New QRP Year

72/73....Walter - K5EST











































Re: NDBs Logged Tonight

John Raynsford
 

Thanks for the link Dennis, KC0IFQ. Rummaged through
some boxes and dug out my Palomar Engineers VLF
converter, listening to Dutch Harbor on 283 khz. Haven't
tuned through those frequencies in years !

72/73 to all  de AL7JK



On Monday, December 26, 2016 5:34 AM, "WA0ITP wa0itp@... [4sqrp]" <4sqrp@...> wrote:


 
Great fun.  I use an Icom 756 Pro III, LSB, and 1.8k filter setting.  It takes me about a half hour to scan the band, tuning slow and stopping often, i.e. listening deep. Some signals are right at the noise level.  I'm thinking that a low pass filter in front of the receiver to knock down the broadcast band would be useful. I'm getting some mixing products and overloading due to a BCB station about 2 miles away.
72 WAØITP
I love this radio stuff.
www.wa0itp.com
www.4sqrp.com
On 12/26/2016 12:29 AM, Dennis Gaskill gaskilldg@... [4sqrp] wrote:
 
I recounted the beacons, I had copied and I it was approaching 40 .......I only had 38 ......
You want to tune slowly , because the CW is so slow that there is a pretty good gap before the beacon starts over .
If you do PSK you can look for the signals on the waterfall as you sweep the band .

Dennis KC0IFQ

On Sun, Dec 25, 2016 at 8:14 PM, Sam Neal <n5af@...> wrote:

What receivers/antennas are y'all using. I only hear HRD on about 423 kHz at
the Hardin County airport, Kountze Texas near Beaumont, about 40 miles away,
using a 40 meter dipole. Tomorrow I will try a different receiver.

Sam. Neal. N5AF
.........................

------ Original Message ------
Received: 10:03 AM CST, 12/22/2016
From:
"Dennis Gaskill gaskilldg@ gmail.com [4sqrp]" <4sqrp@ yahoogroups.com>
To: 4sqrp@...
Subject: [4sqrp] Re: NDBs Logged  Tonight

Here is a list of North American beacons

http://dxinfocentre.com/ndb. htm

Just use the search function in your web browser to find the Call Sign you
think you heard.

The noise is pretty bad .
I learned a little abut digging slow CW out of the noise.
I think I was approaching 50 beacons.

My QTH is close to Wichita, Ks so most beacons are I hear are
...........whadda you know , in the 4SQRP area.
Oklahoma, Kansas , Iowa, Texas, Missouri
The modulation or tone is kinda weird on many of them . You have to tune
carefully and play with all
your filters. I am using a Kenwood 590SG and a 130 ft OFC for a antenna.

Dennis KC0IFQ








Re: FT243 crystal grinding.

Leland L. Bahr
 

When grinding crystals it is imperative both planes of the crystal stay parallel. If they don't, it will not oscillate. Beveling the edges help restore activity if the blank becomes sluggish. Grinding crystals over just a few kHz is feasible in my book. I have done it. Penning a crystal works too. However I have found etching crystals allows me to go more then a couple khz. Maybe 25 khz or so before activity falls off. This idea or notion you can grind on a piece of plate glass figure 8s and move the crystal 100 khz is nonsense in my book. I have tried it too many times using different compounds. I have found it impossible to keep the two planes parallel for this far an excursion. I have talked to other hams, I respect, and have found they too came to the same conclusions as myself. A crystal manufacturer uses a lapping machine which keeps the two planes parallel. So you guys out there who have been listening to malarkey, think twice before you attempt grinding crystals yourself. There are a lot of unusable FT-243 crystals out there and there are guys re-stuffing cases, but how many guys are actually grinding a crystal to a usable frequency and then selling them? I can tell you NADA! So for the guys out there that insist this is "A piece of cake", how about grinding some for me? I'll send you the blanks and give you $5.00 each you grind for me. You pay me $1.00 each for each one you screw up. All I am saying is, I've been there, done that too many times, too many different ways to know this is a very difficult task. Maybe you will be lucky. It's been mostly a failure for me as I said beyond a couple khz bye grinding or 25 khz bye etching. However, I must say, trying to grind crystals yourself is a great learning experience.

Lee, w0vt


Re: FT243 crystal grinding.

Sam Neal
 

Hello Rex,

If only I had known this 59 years ago when I was KN5LZJ. All I knew was that a
xtal could be ground up in frequency.

I did use, either Bon-Ami or Ajax abrasive cleanser, mixing it with water on
the smoothest concrete sidewalk I could find and grind awhile, drying the
crystal, keeping skin oil off of it, reassembling the xtal, and testing it in
the rig and usually after about 3 or 4 tries, I was near where I wanted to be.
Anything to get off of Radio Moscow on 7183!

When I went past my target frequency, I would mark both sides on the xtal with
a #2 leal pencil to lower it.

Thanks for the radio history.

73,

Sam Neal N5AF


Subject: [4sqrp] FT243 crystal grinding.

Gangue,

The crystal grinding workshop at Ozarkcon was given by Daorrel Brehm,
WA3OPY, Ron Hale, AC5UR, and me, W1REX. My friends Darrel and Ron both
work at International Crystal Manufacturingin Oklahoma City and I, of
course, 'work' at QRPme. The boys at ICM provided some frequency
counting equipment while I supplied the FT243 crystals and my special
crystal oscillators. My unique contribution to the art of crystal
grinding was the crystal oscillators. They were based on the ubiquitous
universal crystal oscillator circuit with a twist. I built the
oscillators inside tuna cans with a bare copper pcb on the top of the
can. The entire copper pcb was a grounding plate where you placed the
crystal for frequency measurement. The second electrode for the FT243
crystal was a copper plumbing cap attached to a wire going a Manhattan
pad whichis also connected to the pcb to the oscillator inside.

The procedure was to FIRST measure the unmodified FT243 crystal holding
the FT243 to the Manhattan pad and ground plate.

Then you take apart the FT243 and measure the frequency of the blank by
placing it on the pcb ground plate and placing the plumbing cap
electrode on top.

Now you can slowly add lead shot, BBs or any other uniform small weights
into the plumbing cap until the frequency reads sufficiently CLOSE to
the original unmodified frequency. Now you have the cap fixture 'tuned'
to the spring & pressure plates inside the FT243 holder.

You can do some grinding... we used Bon Ami on 1/2" plate glass grinding
surfaces. Clean the blanks thoroughly with distilled water, dry with hot
air and test in the cap fixture.

Once you get a reading you are happy with, you reassemble the FT243
using your new blank and you should then be fairly spot on to the
desired frequency. I scored on a big batch of 6975 FT243s and we
successfully moved them all to 7030 which was a hard to find crystal in
those days...I wrote up the whole process and did a kit run of the
oscillator at FDIM... It was my first attempt at a NO Solder Buildathon.
We did itlive over the Internet and it was billed as the FDIM Build-A-Long.

Link here:http://qrpme.com/?p=product&id=BAK


Rex W1REX


Re: 4QRP Email Blog

WA0ITP
 

good one Walter!
72 WAØITP
I love this radio stuff.
www.wa0itp.com
www.4sqrp.com
On 12/28/2016 7:54 PM, Walter - K5EST walter.k5est@... [4sqrp] wrote:

 

4QRP
The original email blog of the 4SQRP Group -- copyright December 2016
Walter - K5EST - Editor



The Bayou Jumper

The famous Bayou Jumper is in high demand! Thank you everyone for supporting the designers and 4SQRP to help fund OzarkCon.

Yes, we suspended sales while the kitter gets time to restock and we had a shock of one component having a 15 to 17 weeks wait from the manufacturer. HA....well don't worry since a cache was found which is already purchased. Please watch the 4SQRP and QRP email reflectors for updates when sales and shipping can resume............de K5EST

 🎌


Grinding Crystals Ideas

The Ancients were used to grinding crystals to get on the desired frequency. In our modern times, folks just spin the VFO! There is something sacred about using rock bound radio equipment. Skill and clever operating times will normally yield contacts. 

Doing a simple search on Google, "grinding radio crystals" gave more results than expected. Do a Google or whatever search engine you use for more information.

One of our 4SQRP members, Nick - WA5BDU has a nice FT-243 grinding webpage......see http://wa5bdu.blogspot.com/2011/03/ft243-crystal-grinding.html

🎌

Reverse Beacon Network

The Reverse Beacon Network (RBN) is a great help is determining your transmitter and antenna combination. Ever wonder where the beacon ears are located? How far am I being heard? The great news is if you will go to the RBN website an answer to many questions is at your fingertips........    http://www.reversebeacon.net/nodes/detail.php


🎌

Hello 2017

January 8, 2017 is the date of the Second Sunday Sprint (SSS). Please watch the 4SQRP reflector for the announcements and if you can join in then you can have extra fun on a Sunday night.

April 7 and 8, 2017 OZARKCON in Branson, MO. Attendance last year was the biggest ever and we want you to enjoy another amazing QRP Conference this year. Here are the stats.......

Database Records of Attendance for each Year
Data for event years prior to those shown were not captured in the database.
Year Confirmed Registrations States Represented
2016 148 18
2015 134 19
2014 117 17
2013 111 17
2012 108 16
2011 111 16

The following QTH's have been represented at OzarkCon Events: 
AL, AR, AZ, CA, CO, FL, GA, Hampshire England, IA, ID, IL, IN, KS, LA, ME, MI, MN, MO, MS, ND, NE, NH, NM, OK, SC, TN, TX, UT, VA, WI

🎌

Antenna Reading and Ideas

Running QRP is challenging sometimes and a good antenna is your signal print to the other station. Being antenna challenged by HOAs, space restrictions, etc are a normal event in the lives of QRP operators. A FREE (my kinda price) Antenna book can be downloaded which is about 20MB. Antentop homepage is at    http://www.antentop.org/

 
🎌

That is the end of the 4QRP blog for 2016

Happy New QRP Year

72/73....Walter - K5EST


FT243 crystal grinding.

Rex Harper
 

Gangue,

The crystal grinding workshop at Ozarkcon was given by Darrel Brehm, WA3OPY,  Ron Hale, AC5UR, and me, W1REX. My friends Darrel and Ron both work at International Crystal Manufacturing in Oklahoma City and I, of course, 'work' at QRPme. The boys at ICM provided some frequency counting equipment while I supplied the FT243 crystals and my special crystal oscillators. My unique contribution to the art of crystal grinding was the crystal oscillators. They were based on the ubiquitous universal crystal oscillator circuit with a twist. I  built the oscillators inside tuna cans with a bare copper pcb on the top of the can. The entire copper pcb was a grounding plate where you placed the crystal for frequency measurement. The second electrode for the FT243 crystal was a copper plumbing cap attached to a wire going a Manhattan pad which is also connected to the pcb to the oscillator inside.

The procedure was to FIRST measure the unmodified FT243 crystal holding the FT243 to the Manhattan pad and ground plate.

Then you take apart the FT243 and measure the frequency of the blank by placing it on the pcb ground plate and placing the plumbing cap electrode on top.

Now you can slowly add lead shot, BBs or any other uniform small weights into the plumbing cap until the frequency reads sufficiently CLOSE to the original unmodified frequency. Now you have the cap fixture 'tuned' to the spring & pressure plates inside the FT243 holder.

You can do some grinding... we used Bon Ami on 1/2" plate glass grinding surfaces. Clean the blanks thoroughly with distilled water, dry with hot air and test in the cap fixture.

Once you get a reading you are happy with, you reassemble the FT243 using your new blank and you should then be fairly spot on to the desired frequency.  I scored on a big batch of 6975 FT243s and we successfully moved them all to 7030 which was a hard to find crystal in those days...I wrote up the whole process and did a kit run of the oscillator at FDIM... It was my first attempt at a NO Solder Buildathon. We did it live over the Internet and it was billed as the FDIM Build-A-Long.

Link here:http://qrpme.com/?p=product&id=BAK


Rex  W1REX


Re: Monitoring 7122 - 28 Dec, 2016 1 PM / 6 PM

Sam Neal
 

Hello,

Thanks for the QSO. I play with QRPp also and will change to
the QRPp rig soon, a MFJ-9040 with a variable Voltage power supply. It will go
from about 7 Watts down to 25 mW or less.

I have one of those jobs with a 7 day weekend and monitor 7122 all day
everyday. I hope to work you again soon.

72,

Sam. Neal. N5AF
...............................
















 









Hey Samyour AC1 sounding good today here in Ga.Thanks for coming back to
my CQ this afternoon..The rig here was just put together this afternoonand
you. were the first contact , it is a Sea Sprite from Rex at QRPme ..Tnx get
the contact en Happy New YearTom WA4ZOF

Sent from Yahoo Mail for iPhone

On Dec 28, 2016, 14:10:34, 'Sam Neal' n5af@usa.net
[4sqrp]4sqrp@yahoogroups.com> wrote:












Hello,



I am in the shack for the afternoon and am monitoring 7122 at this time until

about 6 PM.



Running a 6V6 tube at 4 Watts output ( Ameco AC-1 clone ) to a dipole
antenna.

Receiver is an Icom 756PROII.



72,



Sam Neal N5AF


Re: Crystal sockets

Sam Neal
 

Hello,

This is slightly off what is being discussed. In the Ameco AC-1 clone partial
kit I am using, the designer intended for the user to use either a 1/4 inch
key jack - or plug the key into half of an 8 pin octal tube socket on the top
of the chassis using a gutted FT-243 xtal case, and using the other pins of
the socker to plug your xtal into.

I didn't do that. I wired the octal socket for crystals only.

Wire pins 1&2 together, pins 3&4 together, pins 5&6 together and 7&8 together.
Ground pins 1&2&5&6. Attach a wire so that 3&4 connect to 7&8 and run the
other end to the grid connection of the oscillator tube.

By doing this, you can plug your FT-243 into any combinations of pins that it
will fit into and not have to remember which two to use as you would the
other way.
Sam. Neal. N5AF
…..............................



Subject: Re: [4sqrp] Crystal sockets


Re: Bayou Jumper tricks I came up with

davemrtn
 

You can also use a 'square' against the crystal body to insure the pins are standing straight up.

I also used the FT-243 pins as a form for shaping the the crimp tabs to fit into the PCB holes.

NA1MH


On 12/28/2016 20:18, 'Jim Sheldon' w0eb@... [4sqrp] wrote:
 

Got my Bayou Jumper kit from Larry Hastings this morning - started
building it around 1:30 this afternoon (after I put the "Golden Oak"
stain on the wood box and set it to dry). Build finished, alignment
done and the box was dry enough so I mounted it in the box - completion
around 5 p.m. It still needs a few tweaks to the Regen, but it hears and
it transmits. I need to get the regen feedback up a bit for better
receive but the frequency of the receiver came out right on what it
should have so I got the most hated part (the multi winding toroid)
close to correct and no need to further adjust the receiver frequency
other than getting the regeneration working a bit better. At least
there's only one of them little donuts to wind in this one. All the
other inductors are either solder-in or etched right on the PC board.

Here's a trick you can use to get the Molex crystal socket pins right if
you have an actual FT-243 crystal (just the case with pins is enough).
Follow the directions and get the pins set in their holes. Then, plug an
FT-243 crystal into them to keep the horizontal spacing right and then
carefully solder the pins on the TOP of the board first while making
sure the crystal sets vertical. Then, leaving the crystal plugged in,
turn the board over and solder the bottom side. Make sure the solder has
cooled on one pin before soldering the other on so you don't mess up
your original alignment. (Leaving the crystal plugged in supports the
pins mechanically so they don't get out of alignment when you solder the
bottom). Worked like a champ and doing it that way, the insulators went
over the pins perfectly from the top side of the front panel when they
were called for. It don't get much easier than that. Whoever wrote the
manual might want to consider adding this info to it. It DOES hinge on
having an actual crystal or crystal case with the pins on hand though.

Jim - W0EB


-- 
David Martin - NA1MH - Mountain Home, Ar.
-----------------------------------------


Bayou Jumper tricks I came up with

Jim Sheldon
 

Got my Bayou Jumper kit from Larry Hastings this morning - started
building it around 1:30 this afternoon (after I put the "Golden Oak"
stain on the wood box and set it to dry). Build finished, alignment
done and the box was dry enough so I mounted it in the box - completion
around 5 p.m. It still needs a few tweaks to the Regen, but it hears and
it transmits. I need to get the regen feedback up a bit for better
receive but the frequency of the receiver came out right on what it
should have so I got the most hated part (the multi winding toroid)
close to correct and no need to further adjust the receiver frequency
other than getting the regeneration working a bit better. At least
there's only one of them little donuts to wind in this one. All the
other inductors are either solder-in or etched right on the PC board.

Here's a trick you can use to get the Molex crystal socket pins right if
you have an actual FT-243 crystal (just the case with pins is enough).
Follow the directions and get the pins set in their holes. Then, plug an
FT-243 crystal into them to keep the horizontal spacing right and then
carefully solder the pins on the TOP of the board first while making
sure the crystal sets vertical. Then, leaving the crystal plugged in,
turn the board over and solder the bottom side. Make sure the solder has
cooled on one pin before soldering the other on so you don't mess up
your original alignment. (Leaving the crystal plugged in supports the
pins mechanically so they don't get out of alignment when you solder the
bottom). Worked like a champ and doing it that way, the insulators went
over the pins perfectly from the top side of the front panel when they
were called for. It don't get much easier than that. Whoever wrote the
manual might want to consider adding this info to it. It DOES hinge on
having an actual crystal or crystal case with the pins on hand though.

Jim - W0EB


Re: Crystal sockets

Don Wilhelm
 

I know it will modify the "Paraset" appearance, but if you cannot obtain real FT-243 crystal sockets, know that the crystals will fit into alternate pins of an octal tube socket. We used to do that in the "olden days" In fact, you can plug 2 FT-243 crystals into an octal socket and use a switch to choose between them.

73,
Don W3FPR

On 12/28/2016 8:58 PM, 'Jim Sheldon' w0eb@cox.net [4sqrp] wrote:


It doesn't come with a real crystal socket. They make it using Molex
pins and some slip on insulators that are installed through the holes in
the top panel. Little tricky but they work just fine and are cheaper to
buy than the FT-243 sockets. Much easier to get in the quantities
needed as well.

Jim - W0EB


Re: Crystal sockets

Jim Sheldon
 

It doesn't come with a real crystal socket.  They make it using Molex pins and some slip on insulators that are installed through the holes in the top panel.  Little tricky but they work just fine and are cheaper to buy than the FT-243 sockets.  Much easier to get in the quantities needed as well. 
 
Jim - W0EB
 

------ Original Message ------
From: "Bry Carling af4k@... [4sqrp]" <4sqrp@...>
To: "4sqrp@..." <4sqrp@...>; "Brian Ford" <kf4tap@...>
Sent: 12/28/2016 7:32:02 PM
Subject: Re: [4sqrp] Crystal sockets
 


I think the Bayou Jumper comes with a crystal socket.


If anyone would like extra ones we have them available in at least three different styles. Ceramic, phenolic and plastic etc.


http://af4k.com/crystal_sockets.htm

af4k.com
AF4K's CRYSTAL SOCKETS ORDER PAGE. Amateur radio crystal sockets available for FT243, hc6u, FT171B, DC34, DC35, CR-1/A, hc25, hc50 and many other types.


73 de AF4K, Bry




From: 4sqrp@... <4sqrp@...> on behalf of Brian Ford kf4tap@... [4sqrp] <4sqrp@...>
Sent: Wednesday, December 28, 2016 7:45 PM
To: 4sqrp@...
Subject: [4sqrp] Crystal sockets
 
 

I have new made ft 243 sockets that I ran about 10 years ago.   You have to supply your on contact pins.  Take some from a broken octal socket.   They are a buck apiece. 





4QRP Email Blog

Walter - K5EST
 


4QRP
The original email blog of the 4SQRP Group -- copyright December 2016
Walter - K5EST - Editor



The Bayou Jumper

The famous Bayou Jumper is in high demand! Thank you everyone for supporting the designers and 4SQRP to help fund OzarkCon.

Yes, we suspended sales while the kitter gets time to restock and we had a shock of one component having a 15 to 17 weeks wait from the manufacturer. HA....well don't worry since a cache was found which is already purchased. Please watch the 4SQRP and QRP email reflectors for updates when sales and shipping can resume............de K5EST

 🎌


Grinding Crystals Ideas

The Ancients were used to grinding crystals to get on the desired frequency. In our modern times, folks just spin the VFO! There is something sacred about using rock bound radio equipment. Skill and clever operating times will normally yield contacts. 

Doing a simple search on Google, "grinding radio crystals" gave more results than expected. Do a Google or whatever search engine you use for more information.

One of our 4SQRP members, Nick - WA5BDU has a nice FT-243 grinding webpage......see http://wa5bdu.blogspot.com/2011/03/ft243-crystal-grinding.html

🎌

Reverse Beacon Network

The Reverse Beacon Network (RBN) is a great help is determining your transmitter and antenna combination. Ever wonder where the beacon ears are located? How far am I being heard? The great news is if you will go to the RBN website an answer to many questions is at your fingertips........    http://www.reversebeacon.net/nodes/detail.php


🎌

Hello 2017

January 8, 2017 is the date of the Second Sunday Sprint (SSS). Please watch the 4SQRP reflector for the announcements and if you can join in then you can have extra fun on a Sunday night.

April 7 and 8, 2017 OZARKCON in Branson, MO. Attendance last year was the biggest ever and we want you to enjoy another amazing QRP Conference this year. Here are the stats.......

Database Records of Attendance for each Year
Data for event years prior to those shown were not captured in the database.
YearConfirmed RegistrationsStates Represented
201614818
201513419
201411717
201311117
201210816
201111116

The following QTH's have been represented at OzarkCon Events: 
AL, AR, AZ, CA, CO, FL, GA, Hampshire England, IA, ID, IL, IN, KS, LA, ME, MI, MN, MO, MS, ND, NE, NH, NM, OK, SC, TN, TX, UT, VA, WI

🎌

Antenna Reading and Ideas

Running QRP is challenging sometimes and a good antenna is your signal print to the other station. Being antenna challenged by HOAs, space restrictions, etc are a normal event in the lives of QRP operators. A FREE (my kinda price) Antenna book can be downloaded which is about 20MB. Antentop homepage is at    http://www.antentop.org/

 
🎌

That is the end of the 4QRP blog for 2016

Happy New QRP Year

72/73....Walter - K5EST

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