Date   

Re: Bayou Jumper on 7,122

Tim N9PUZ
 

Jim --

I was having some cable issues in the shack and the station was mostly deaf. I was primarily IDing just in case I'd radiated a signal. It seems that I did. Sorry I did not hear you to be your first Bayou Jumper Q.

For a hobby that's "wireless", there sure seems to be a lot of wires and cables in my shack.

Tim N9PUZ

On 12/29/2016 12:47 PM, 'Jim Sheldon' w0eb@cox.net [4sqrp] wrote:

Been listening & occasionally calling CQ with my Bayou Jumper on 7.122.
I heard Tim, N9PUZ give his call twice on frequency a while ago. I
called him, but got no return. I checked my frequency and the crystal
is putting out on 7.12205. I'm listening still on 7.122 looking for a
1st QSO on the Jumper.

Jim - W0EB


Re: Sockets

Sam Neal
 

Hello Lon,

I am listening now ( 3 PM and will be in the shack until approximately 8 PM
CST. Hope we can make it.

73,

Sam Neal N5AF
4SQRP #82
................................................................



Love reading the threads on this group. Great information and wonderful
exchange of ideas. Name is Lon/N5DJY 4sqrp 1295. If anyone is interested
in trying to contact Washington State with their HB rigs, I will be on 7.122
for about half hour sending CQ. Be gentle, I am relearning my CW so
probably cannot keep up with most of you.



73



From: 4sqrp@yahoogroups.com [mailto:4sqrp@yahoogroups.com]
Sent: Thursday, December 29, 2016 10:22 AM
To: 4sqrp@yahoogroups.com; Bry Carling; Bob Nelson
Subject: Re: [4sqrp] Sockets





Bob,

I am a neophyte to all this Ham stuff, only having my tickets for 14 months
BUT IMHO is isn't so much about the effort as it is about the nostalgia AND
learning both old and new stuff.

Your reference to a 'DDFS board' sent me searching to find out what that
was...what I found was just as interesting as is this 'crystal'
grinding/making information.

Just maybe another item to add to my ever growing skills list.

All this ham stuff just amazes me. Good Luck, 73s

RWeeks, AF5AF



On 12/29/2016 12:04 PM, Bry Carling af4k@hotmail.com [4sqrp] wrote:



Bob - it is more the fun factor. Hams love to experiment!




_____


From: 4sqrp@yahoogroups.com <mailto:4sqrp@yahoogroups.com>
<4sqrp@yahoogroups.com> on behalf of Bob Nelson rln37@yahoo.com [4sqrp]
<mailto:4sqrp@yahoogroups.com> <4sqrp@yahoogroups.com>
Sent: Thursday, December 29, 2016 12:52 PM
To: 4sqrp@yahoogroups.com; Brian Ford
Subject: Re: [4sqrp] Sockets





Please excuse my skepticism, but is all this effort to re-grind, house and
socket

crystals worth the time and bother??

Why not invest the same time and effort into building a DDFS board, that can


generate almost any freq you might want on, say, 40 meters. And do it from
one

crystal that is readily available for a buck or two, and never needs to be
plugged

in or out, so needs no socket.

Modern tech has eliminated the need to labor over crystals with hand
grinding,

and all the risk and bother that entails.



Just asking. . .

73 - Bob, K6KL





On Thursday, December 29, 2016 11:30 AM, "Brian Ford kf4tap@yahoo.com
[4sqrp]" <mailto:4sqrp@yahoogroups.com> <4sqrp@yahoogroups.com> wrote:





Since it is the holidays, I'll add to the give a way, I'll draw from the
response's over the next 24 hours, and draw names, for 6 of my ft-243
sockets.



Keith kf4tap


Sent from Yahoo Mail for iPad <https://yho.com/footer0>


Re: Sockets

Bry Carling <af4k@...>
 

I am sure that there is more to it than that. Some of us greatly enjoy the nostalgia factor too. that is why there are operating events and there is great popularity for running old tube gear.  Yes, some of us may learn lessons that seem redundant, or futile to others, when we operate or repair those older rigs. Why not ONLY run an HB1B or some other DDS gizmo? You will have to ask the guys that love old technology. I can't answer for them. I also won't try to argue with them that they should step in line.


The great thing about amateur radio is we have SO MANY avenues to explore! One man's meat is another man's poison as they say.

Some guys just like to do things that you or I may not understand. Let's leave it at that and let them enjoy themselves.


73 de AF4K, Bry



From: 4sqrp@... <4sqrp@...> on behalf of Bob Nelson rln37@... [4sqrp] <4sqrp@...>
Sent: Thursday, December 29, 2016 1:19 PM
To: 4sqrp@...; Bry Carling
Subject: Re: [4sqrp] Sockets
 
 

Bry, fun is fine.  But why not use the
same time and effort to build skills with lasting
value, that can be applied to other areas as well?

I did some xtal grinding back in the 1950's, when
I was a young Novice, and if I had had access to
the kind of digital products we have now, I'd have
been able to learn new things that could be applied
to other technical subjects.

One thing I believe I have learned about operating the
HF bands is that frequency diversity if far more productive
than being rockbound to a single freq for every xtal you
happen to own.

IMHO, it's a lot more valuable to build new tech skills
(and knowledge) than it is to learn that Bon Ami is the
best stuff to rub a wafer with.

73 - Bob, K6KL  (in frozen North Dakota)





On Thursday, December 29, 2016 12:04 PM, "Bry Carling af4k@... [4sqrp]" <4sqrp@...> wrote:


 
Bob - it is more the fun factor. Hams love to experiment!



From: 4sqrp@... <4sqrp@...> on behalf of Bob Nelson rln37@... [4sqrp] <4sqrp@...>
Sent: Thursday, December 29, 2016 12:52 PM
To: 4sqrp@...; Brian Ford
Subject: Re: [4sqrp] Sockets
 
 
Please excuse my skepticism, but is all this effort to re-grind, house and socket
crystals worth the time and bother??
Why not invest the same time and effort into building a DDFS board, that can
generate almost any freq you might want on, say, 40 meters.  And do it from one
crystal that is readily available for a buck or two, and never needs to be plugged
in or out, so needs no socket.
Modern tech has eliminated the need to labor over crystals with hand grinding,
and all the risk and bother that entails.

Just asking.  .  . 
73 - Bob, K6KL



On Thursday, December 29, 2016 11:30 AM, "Brian Ford kf4tap@... [4sqrp]" <4sqrp@...> wrote:


 
Since it is the holidays, I'll add to the give a way, I'll draw from the response's over the next 24 hours, and draw names, for 6 of my ft-243 sockets.






Re: 1st Bayou Jumper QSO

Sam Neal
 

Hello Jim,

It was a pleasure to be QSO #1 with your new rig. If it is convenient, send a
photo to us.

73,

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


Subject: [4sqrp] 1st Bayou Jumper QSO

Well somebody finally heard my Bayou Jumper on 7.12205. Just worked
Sam, N5AF with 449 signals. One thing, I'm going to have to plug in one
of my bugs and use the dash paddle to key it with. That built in key is
neat, but hard for someone like me with a serious glass arm to send
with. I'm left handed (use a bug & paddles right handed but a straight
key left handed) and the key is on the wrong side of the box for me - up
a little too high as well, but that's the nature of the beast.
Fortunately there is an external key jack and I'll just have to plug
something in there that I can send with. Boy, that little HC/49 7.122
crystal that came with the kit is very close to frequency in my Jumper.
I did solder it into an FT-243 case, turned the front plate on the
FT-243 around and using my Dremel, polished the brass and very
unskillfully engraved 7122 on it. I put a little black paint in the
numbers. They don't look too bad, but you can sure tell I'm no engraver
- LOL. The 7.030 rock was a larger sized one and wouldn't fit a normal
FT-243 with the guts removed so I milled out the internal bakelite in
the crystal holder enough to be able to fit it in and did the same
polish/engrave the reverse of the old crystal's front plate. At least I
can easily tell what frequency it's on anyway.

I still have a bit of tweaking to do on the Receiver's regeneration.
It's hearing but the regen sometimes drops out on me so I probably
better put that extra capacitor in. I'm switching to the ATS-II and
still listening on 7.122 while I do some more work on the Bayou Jumper
including gluing another wood block in the lid with holes drilled to act
as a crystal holder for the two crystals.

Jim - W0EB


1st Bayou Jumper QSO

Jim Sheldon
 

Well somebody finally heard my Bayou Jumper on 7.12205. Just worked
Sam, N5AF with 449 signals. One thing, I'm going to have to plug in one
of my bugs and use the dash paddle to key it with. That built in key is
neat, but hard for someone like me with a serious glass arm to send
with. I'm left handed (use a bug & paddles right handed but a straight
key left handed) and the key is on the wrong side of the box for me - up
a little too high as well, but that's the nature of the beast.
Fortunately there is an external key jack and I'll just have to plug
something in there that I can send with. Boy, that little HC/49 7.122
crystal that came with the kit is very close to frequency in my Jumper.
I did solder it into an FT-243 case, turned the front plate on the
FT-243 around and using my Dremel, polished the brass and very
unskillfully engraved 7122 on it. I put a little black paint in the
numbers. They don't look too bad, but you can sure tell I'm no engraver
- LOL. The 7.030 rock was a larger sized one and wouldn't fit a normal
FT-243 with the guts removed so I milled out the internal bakelite in
the crystal holder enough to be able to fit it in and did the same
polish/engrave the reverse of the old crystal's front plate. At least I
can easily tell what frequency it's on anyway.

I still have a bit of tweaking to do on the Receiver's regeneration.
It's hearing but the regen sometimes drops out on me so I probably
better put that extra capacitor in. I'm switching to the ATS-II and
still listening on 7.122 while I do some more work on the Bayou Jumper
including gluing another wood block in the lid with holes drilled to act
as a crystal holder for the two crystals.

Jim - W0EB


Bayou Jumper on 7,122

Jim Sheldon
 

Been listening & occasionally calling CQ with my Bayou Jumper on 7.122.
I heard Tim, N9PUZ give his call twice on frequency a while ago. I
called him, but got no return. I checked my frequency and the crystal
is putting out on 7.12205. I'm listening still on 7.122 looking for a
1st QSO on the Jumper.

Jim - W0EB


Re: Sockets

Lon Shelton <lon.shelton@...>
 

Good Morning all,

 

Love reading the threads on this group.  Great information and wonderful exchange of ideas.  Name is Lon/N5DJY  4sqrp 1295.  If anyone is interested in trying to contact Washington State with their HB rigs, I will be on 7.122 for about half hour sending CQ.  Be gentle, I am relearning my CW so probably cannot keep up with most of you…

 

73

 

From: 4sqrp@... [mailto:4sqrp@...]
Sent: Thursday, December 29, 2016 10:22 AM
To: 4sqrp@...; Bry Carling; Bob Nelson
Subject: Re: [4sqrp] Sockets

 

 

Bob,

I am a neophyte to all this Ham stuff, only having my tickets for 14 months BUT IMHO is isn't so much about the effort as it is about the nostalgia AND learning both old and new stuff.

Your reference to a 'DDFS board' sent me searching to find out what that was...what I found was just as interesting as is this 'crystal' grinding/making information.

Just maybe another item to add to my ever growing skills list.

All this ham stuff just amazes me.  Good Luck, 73s

RWeeks, AF5AF

 

On 12/29/2016 12:04 PM, Bry Carling af4k@... [4sqrp] wrote:

 

Bob - it is more the fun factor. Hams love to experiment!

 


From: 4sqrp@... <4sqrp@...> on behalf of Bob Nelson rln37@... [4sqrp] <4sqrp@...>
Sent: Thursday, December 29, 2016 12:52 PM
To: 4sqrp@...; Brian Ford
Subject: Re: [4sqrp] Sockets

 

 

Please excuse my skepticism, but is all this effort to re-grind, house and socket

crystals worth the time and bother??

Why not invest the same time and effort into building a DDFS board, that can

generate almost any freq you might want on, say, 40 meters.  And do it from one

crystal that is readily available for a buck or two, and never needs to be plugged

in or out, so needs no socket.

Modern tech has eliminated the need to labor over crystals with hand grinding,

and all the risk and bother that entails.

 

Just asking.  .  . 

73 - Bob, K6KL

 

 

On Thursday, December 29, 2016 11:30 AM, "Brian Ford kf4tap@... [4sqrp]" <4sqrp@...> wrote:

 

 

Since it is the holidays, I'll add to the give a way, I'll draw from the response's over the next 24 hours, and draw names, for 6 of my ft-243 sockets.

 

 

 


Re: Sockets

RCWeeks <neotoxo54@...>
 

Bob,

I am a neophyte to all this Ham stuff, only having my tickets for 14 months BUT IMHO is isn't so much about the effort as it is about the nostalgia AND learning both old and new stuff.

Your reference to a 'DDFS board' sent me searching to find out what that was...what I found was just as interesting as is this 'crystal' grinding/making information.

Just maybe another item to add to my ever growing skills list.

All this ham stuff just amazes me.� Good Luck, 73s

RWeeks, AF5AF


On 12/29/2016 12:04 PM, Bry Carling af4k@... [4sqrp] wrote:
�

Bob - it is more the fun factor. Hams love to experiment!




From: 4sqrp@... <4sqrp@...> on behalf of Bob Nelson rln37@... [4sqrp] <4sqrp@...>
Sent: Thursday, December 29, 2016 12:52 PM
To: 4sqrp@...; Brian Ford
Subject: Re: [4sqrp] Sockets
�
�
Please excuse my skepticism, but is all this effort to re-grind, house and socket
crystals worth the time and bother??
Why not invest the same time and effort into building a DDFS board, that can
generate almost any freq you might want on, say, 40 meters.� And do it from one
crystal that is readily available for a buck or two, and never needs to be plugged
in or out, so needs no socket.
Modern tech has eliminated the need to labor over crystals with hand grinding,
and all the risk and bother that entails.

Just asking.� .� .�
73 - Bob, K6KL



On Thursday, December 29, 2016 11:30 AM, "Brian Ford kf4tap@... [4sqrp]" <4sqrp@...> wrote:


�
Since it is the holidays, I'll add to the give a way, I'll draw from the response's over the next 24 hours, and draw names, for 6 of my ft-243 sockets.





Re: Sockets

Bob Nelson
 

Bry, fun is fine.  But why not use the
same time and effort to build skills with lasting
value, that can be applied to other areas as well?

I did some xtal grinding back in the 1950's, when
I was a young Novice, and if I had had access to
the kind of digital products we have now, I'd have
been able to learn new things that could be applied
to other technical subjects.

One thing I believe I have learned about operating the
HF bands is that frequency diversity if far more productive
than being rockbound to a single freq for every xtal you
happen to own.

IMHO, it's a lot more valuable to build new tech skills
(and knowledge) than it is to learn that Bon Ami is the
best stuff to rub a wafer with.

73 - Bob, K6KL  (in frozen North Dakota)





On Thursday, December 29, 2016 12:04 PM, "Bry Carling af4k@... [4sqrp]" <4sqrp@...> wrote:


 
Bob - it is more the fun factor. Hams love to experiment!



From: 4sqrp@... <4sqrp@...> on behalf of Bob Nelson rln37@... [4sqrp] <4sqrp@...>
Sent: Thursday, December 29, 2016 12:52 PM
To: 4sqrp@...; Brian Ford
Subject: Re: [4sqrp] Sockets
 
 
Please excuse my skepticism, but is all this effort to re-grind, house and socket
crystals worth the time and bother??
Why not invest the same time and effort into building a DDFS board, that can
generate almost any freq you might want on, say, 40 meters.  And do it from one
crystal that is readily available for a buck or two, and never needs to be plugged
in or out, so needs no socket.
Modern tech has eliminated the need to labor over crystals with hand grinding,
and all the risk and bother that entails.

Just asking.  .  . 
73 - Bob, K6KL



On Thursday, December 29, 2016 11:30 AM, "Brian Ford kf4tap@... [4sqrp]" <4sqrp@...> wrote:


 
Since it is the holidays, I'll add to the give a way, I'll draw from the response's over the next 24 hours, and draw names, for 6 of my ft-243 sockets.






Re: Sockets

Bry Carling <af4k@...>
 

Bob - it is more the fun factor. Hams love to experiment!




From: 4sqrp@... <4sqrp@...> on behalf of Bob Nelson rln37@... [4sqrp] <4sqrp@...>
Sent: Thursday, December 29, 2016 12:52 PM
To: 4sqrp@...; Brian Ford
Subject: Re: [4sqrp] Sockets
 
 

Please excuse my skepticism, but is all this effort to re-grind, house and socket
crystals worth the time and bother??
Why not invest the same time and effort into building a DDFS board, that can
generate almost any freq you might want on, say, 40 meters.  And do it from one
crystal that is readily available for a buck or two, and never needs to be plugged
in or out, so needs no socket.
Modern tech has eliminated the need to labor over crystals with hand grinding,
and all the risk and bother that entails.

Just asking.  .  . 
73 - Bob, K6KL



On Thursday, December 29, 2016 11:30 AM, "Brian Ford kf4tap@... [4sqrp]" <4sqrp@...> wrote:


 
Since it is the holidays, I'll add to the give a way, I'll draw from the response's over the next 24 hours, and draw names, for 6 of my ft-243 sockets.




Re: Sockets

Bob Nelson
 

Please excuse my skepticism, but is all this effort to re-grind, house and socket
crystals worth the time and bother??
Why not invest the same time and effort into building a DDFS board, that can
generate almost any freq you might want on, say, 40 meters.  And do it from one
crystal that is readily available for a buck or two, and never needs to be plugged
in or out, so needs no socket.
Modern tech has eliminated the need to labor over crystals with hand grinding,
and all the risk and bother that entails.

Just asking.  .  . 
73 - Bob, K6KL



On Thursday, December 29, 2016 11:30 AM, "Brian Ford kf4tap@... [4sqrp]" <4sqrp@...> wrote:


 
Since it is the holidays, I'll add to the give a way, I'll draw from the response's over the next 24 hours, and draw names, for 6 of my ft-243 sockets.




Re: Sockets

RCWeeks <neotoxo54@...>
 

Keith,

Thanks for offering these sockets.

Please include me in the responces for the drawing.

RWeeks, AF5AF


On 12/29/2016 11:29 AM, Brian Ford kf4tap@... [4sqrp] wrote:
 

Since it is the holidays, I'll add to the give a way, I'll draw from the response's over the next 24 hours, and draw names, for 6 of my ft-243 sockets.




Re: Sockets

Ariel Jacala
 

Brian

I am interested 

Ariel NY4G


On Thursday, December 29, 2016 12:30 PM, "Brian Ford kf4tap@... [4sqrp]" <4sqrp@...> wrote:


 
Since it is the holidays, I'll add to the give a way, I'll draw from the response's over the next 24 hours, and draw names, for 6 of my ft-243 sockets.




Sockets

keith ford
 

Since it is the holidays, I'll add to the give a way, I'll draw from the response's over the next 24 hours, and draw names, for 6 of my ft-243 sockets.


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

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