Date   

Re: SSS Second Sunday Sprints

Paul Smith
 

It is snowing here as well, ground is white. I have a crew heading to the campus in a couple hours... I may supervise them from my radio chair he he he....actually my assistant has the watch. Will see u tonight in the SSS 

de Paul N0NBD

Sent from my iPad

On Dec 8, 2013, at 9:08 AM, "WA0ITP" <wa0itp@...> wrote:

 



Second Sunday Sprint tonight  7-9 Central.  It's snowing here, and will stay cold all day - what a  super day and evening for playing radio!   Is Winter great or what !!!
 
Hope to work a bunch of Four Staters tonight.
 
----------------------------------
Back to the bench, Winter's too valuable to waste.
I love this radio stuff !
72   WA0ITP
www.wa0itp.com
www.4sqrp.com
 
 
 
----- Original Message -----
Sent: Friday, December 06, 2013 7:54 PM
Subject: [4sqrp] SSS Second Sunday Sprints

December is here.....brrrrrrrr!

Our last Second Sunday Sprint of this year is coming up
this Sunday evening. Given the propagation, who knows
but from 7pm to 9pm we can see what the signals tell
us. Guessing the 160 and 80 meter bands may be a
good place to work the Sprint, and maybe even the
40 meter band if it has not gone long.

So......with the QSOs counting for an unveiled prize
concerning OzarkCon, lets try to collect all the QSO
contacts possible. 

Reporting, using the email address on the group website

or


Put "Sprint" in the email subject.......
in the body, we need # of QSOs and
band.

Please send them into me by Tuesday Dec 10th
and we shall have current totals on the reflector.
The totals are turned over to our new Contest
& Sprint Coordinator....John - AA0VE.

I will get another several reminder emails sent 
Saturday and Sunday.

72....Walter - K5EST
 


Re: SSS Second Sunday Sprints

WA0ITP
 


Second Sunday Sprint tonight  7-9 Central.  It's snowing here, and will stay cold all day - what a  super day and evening for playing radio!   Is Winter great or what !!!
 
Hope to work a bunch of Four Staters tonight.
 
----------------------------------
Back to the bench, Winter's too valuable to waste.
I love this radio stuff !
72   WA0ITP
www.wa0itp.com
www.4sqrp.com
 
 
 

----- Original Message -----
Sent: Friday, December 06, 2013 7:54 PM
Subject: [4sqrp] SSS Second Sunday Sprints

December is here.....brrrrrrrr!

Our last Second Sunday Sprint of this year is coming up
this Sunday evening. Given the propagation, who knows
but from 7pm to 9pm we can see what the signals tell
us. Guessing the 160 and 80 meter bands may be a
good place to work the Sprint, and maybe even the
40 meter band if it has not gone long.

So......with the QSOs counting for an unveiled prize
concerning OzarkCon, lets try to collect all the QSO
contacts possible. 

Reporting, using the email address on the group website

or


Put "Sprint" in the email subject.......
in the body, we need # of QSOs and
band.

Please send them into me by Tuesday Dec 10th
and we shall have current totals on the reflector.
The totals are turned over to our new Contest
& Sprint Coordinator....John - AA0VE.

I will get another several reminder emails sent 
Saturday and Sunday.

72....Walter - K5EST
 


Re: Morning Nets

Steve Sellmeyer <ssellmeyer@...>
 

Hi Terry
 
I vote for a Thursday morning. Mondays are hectic around here with the start of a new week and all.
 
Steve/WB0QQT


Morning Nets -- QRP only

Chuck Carpenter
 

Terry,

Are the nets intended to be QRP only or...?

Just don't want to forget to turn the power down... :-)

Chuck Carpenter, W5USJ
EM22cv, Rains Co. TX


Re: Morning Nets

Chuck Carpenter
 

I should be able to make Thursday mornings. Mon, Wed and Fri are out. Otherwise Tue and Thu.

Anything evenings doesn't work for me anymore... :-)

At 09:45 PM 12/7/2013, you wrote:
We need to decide if we want once or twice weekly morning nets. If twice
weekly, I suggest Monday and Thursday mornings. If once then Thursday seems to
be a good choice. Comments?

Chuck Carpenter, W5USJ
EM22cv, Rains Co. TX


Re: Ice

W0IIT
 

Boy!! That Norm knows how to rub salt in an open wound:-) Just wondering what brand of beer Norm was sipping down under!! I used to really enjoy a couple of ice cold "Foster's" after a day on the river in my canoe. One time we had a "world traveler" with us and he laughed an said an Aussie wouldn't be caught dead drinking that swill and then named a brand that they really enjoyed drinking, which I have long forgotten. But inquiring minds would like to know, did I fall for the advertisements or do the folks down under really like "Foster's". My old battle worn solo canoe is now retired like me and I can't remember the last cold one I enjoyed???

cu es 72, Bart W0IIT
Pittsburg, KS


Re: Morning Nets

W0IIT
 

Terry,

Mondays and Thursdays work well for me if we decide on twice weekly morning nets. I vote for twice. I know many retired folks are as busy as when they worked if not more so. It might work out that folks would go for twice during the cold months and once in the months that are more conducive to getting out and around. Just my 2 cents worth!

cu es 72, Bart W0IIT
Pittsburg, KS


Magic box 4-sale

neivahul@...
 

I have a very cleanly built magic box to part with. Ready to enclose. Never used. $45.00 includes shipping. Pay pal. Also, Qrpometer, 4s-link digital interface, 3 flying pig rigs, one un-built with enclosure (ten tec) , SS40 receiver, enclosed, SAVXO, NS-40 transmitter. All below cost and well built. Contact me off-line if interested. A 40M Rock- Mite too. Custom enclosure. Good items. Shawn Reed. neivahul@...


Morning Nets

WA0ITP
 

We need to decide if we want once or twice weekly morning nets. If twice
weekly, I suggest Monday and Thursday mornings. If once then Thursday seems to
be a good choice. Comments?

----------------------------------
Back to the bench, Winter's too valuable to waste.
I love this radio stuff !
72 WA0ITP
www.wa0itp.com
www.4sqrp.com


Re: potiental divider

Shawn Reed <neivahul@...>
 

On 12/7/2013 4:31 PM, John R. Lonigro wrote:
 

Shawn:

Just because it is a 400 Watt transformer doesn't mean you can draw 400 Watts from any of the secondary windings.  Each winding has its own current rating, depending on the gauge of the wire used.  If you can measure the gauge of the various secondary windings, you'll have a better idea what you can do with the transformer.

72,

John AA0VE


On 12/07/2013 04:51 PM, Shawn Reed wrote:
 

On 12/7/2013 2:05 PM, WA0ITP wrote:
 



GA Shawn,  nearly everyone on the list will have better ideas than I do, but heres some food for thought.
 
Does your PS have lower voltages available?  If so use something closer to 20 or 30 volts if you can. With semiconductor projects you'll seldom need more than 20 volts.
 
Barring that:
 
I think the best option is to use a buck-boost regulator and set the output to 30-40 volts, then use your 317.  Or just use the buck/boost as your primary regulator and forget the 317.   The buck boost will have to be capable of handling quite a bit of power so choose it with that in mind.
 
One possibility is to use a series pass transistor (1 or more) to handle the full voltage, while providing more current capacity than the 317.  A regulator or voltage divider would need to be incorporated to supply the 317/337.  This would take somw fiddling to make it work. There are lots of 315 circuits and calculators on the web.
 
Another possibility is to use a resistive divider to make the voltage drop for the 317. They arent very practical however.  It would need to pass about 10 times the current you'd expect to pull from the supply in  order to be stiff enough to work.  I used this approach a long time ago and don't recommend it, except in vy low current applications (ma range).  Even there a 3 termial regulator is as easy and is superior.
 
Another option might be to add a zener in the ground leg of the regulator between the adjusting pot and ground.  The idea would be to prevent the 317 from seeing the full 56 volts.  So the zener would have to be rated at more than 16 volts.  Havent tried this approach so dontknow how effective it would be.
 
In any of these, a heat sink will be needed, e.g dropping 16 volts at 1A = 16 Watts.   Good luck, it's an interesting project.
 
----------------------------------
Back to the bench, Winter's too valuable to waste.
I love this radio stuff !
72   WA0ITP
www.wa0itp.com
www.4sqrp.com
 
 
 
----- Original Message -----
Sent: Saturday, December 07, 2013 2:23 PM
Subject: [4sqrp] potiental divider

Hello 4stategroup.

      I have a LM317adj. TO220 regulator-1.5A, 40v max., I mean to use. --Coming off my  PS transformer I have several voltages, one of them being 56vdc, unused. I would like to drop this to 40v output, and then use a 10-turn pot. to vary the voltage down to the min. 1.5vdc.The 56v has been filtered. What is a preferred method to drop this voltage? I imagine a heat sink may be needed, also?  Thanks for any help. Shawn Reed, kf7yff

    Good to hear from you Terry! Thanks for the different thoughts on an approach. The voltages I do have are; 10, 17.5, neg. 28, and 56vdc. Plus 3.2ac. I have the 17.5vdc going to a 7815 reg., and then to a variable situation. I've never figured if I could also use that voltage towards another, separate  circuit. It's a 400W transformer. I imagine I could, and that would be great! What could I do with the negative 28vdc? Maybe just have a neg. variable voltage on hand. -------cold days up here. 17deg. at the moment. Low down to 5 deg. No ice. Some snow expected in a day or two. I've got every 4-state project to bump back to this season, and take them a step further. Great fun, and learning. Having started at zero, I'm doing 60 now :-) Best regards, Shawn, kf7yff

Hello John. It may be best I deal with something more lightweight. The transformer, (Tamradio),  came out of an nice stereo receiver, so I thought I could make it apply to a versatile bench PS. I think I got a picture of it in my 4state photos. I see what you mean, tho. The secondary windings are relatively small - appear to be 18-20 awg. The wires coming off the rectified and filtered board are 20 awg. Two fuses say 1A -125v at the ac input, and the other, 3A-125v, towards the dc end. Never able to find any data with prior searches. Just for gp's, I will add a photo of the circuit board bottom in my photos. Thanks for answering. I've studied into a bit, but know little, at this stage. Shawn, kf7yff


Re: potiental divider

John Lonigro
 

Shawn:

Just because it is a 400 Watt transformer doesn't mean you can draw 400 Watts from any of the secondary windings.  Each winding has its own current rating, depending on the gauge of the wire used.  If you can measure the gauge of the various secondary windings, you'll have a better idea what you can do with the transformer.

72,

John AA0VE


On 12/07/2013 04:51 PM, Shawn Reed wrote:
 

On 12/7/2013 2:05 PM, WA0ITP wrote:
 



GA Shawn,  nearly everyone on the list will have better ideas than I do, but heres some food for thought.
 
Does your PS have lower voltages available?  If so use something closer to 20 or 30 volts if you can. With semiconductor projects you'll seldom need more than 20 volts.
 
Barring that:
 
I think the best option is to use a buck-boost regulator and set the output to 30-40 volts, then use your 317.  Or just use the buck/boost as your primary regulator and forget the 317.   The buck boost will have to be capable of handling quite a bit of power so choose it with that in mind.
 
One possibility is to use a series pass transistor (1 or more) to handle the full voltage, while providing more current capacity than the 317.  A regulator or voltage divider would need to be incorporated to supply the 317/337.  This would take somw fiddling to make it work. There are lots of 315 circuits and calculators on the web.
 
Another possibility is to use a resistive divider to make the voltage drop for the 317. They arent very practical however.  It would need to pass about 10 times the current you'd expect to pull from the supply in  order to be stiff enough to work.  I used this approach a long time ago and don't recommend it, except in vy low current applications (ma range).  Even there a 3 termial regulator is as easy and is superior.
 
Another option might be to add a zener in the ground leg of the regulator between the adjusting pot and ground.  The idea would be to prevent the 317 from seeing the full 56 volts.  So the zener would have to be rated at more than 16 volts.  Havent tried this approach so dontknow how effective it would be.
 
In any of these, a heat sink will be needed, e.g dropping 16 volts at 1A = 16 Watts.   Good luck, it's an interesting project.
 
----------------------------------
Back to the bench, Winter's too valuable to waste.
I love this radio stuff !
72   WA0ITP
www.wa0itp.com
www.4sqrp.com
 
 
 
----- Original Message -----
Sent: Saturday, December 07, 2013 2:23 PM
Subject: [4sqrp] potiental divider

Hello 4stategroup.

      I have a LM317adj. TO220 regulator-1.5A, 40v max., I mean to use. --Coming off my  PS transformer I have several voltages, one of them being 56vdc, unused. I would like to drop this to 40v output, and then use a 10-turn pot. to vary the voltage down to the min. 1.5vdc.The 56v has been filtered. What is a preferred method to drop this voltage? I imagine a heat sink may be needed, also?  Thanks for any help. Shawn Reed, kf7yff

    Good to hear from you Terry! Thanks for the different thoughts on an approach. The voltages I do have are; 10, 17.5, neg. 28, and 56vdc. Plus 3.2ac. I have the 17.5vdc going to a 7815 reg., and then to a variable situation. I've never figured if I could also use that voltage towards another, separate  circuit. It's a 400W transformer. I imagine I could, and that would be great! What could I do with the negative 28vdc? Maybe just have a neg. variable voltage on hand. -------cold days up here. 17deg. at the moment. Low down to 5 deg. No ice. Some snow expected in a day or two. I've got every 4-state project to bump back to this season, and take them a step further. Great fun, and learning. Having started at zero, I'm doing 60 now :-) Best regards, Shawn, kf7yff


Re: Ice

Dale Putnam
 


With only 3 degrees, and a breeze at 15.. I'm wishing we could share... 
you could even keep all the beer....
Have a great day,
 
 
--... ...-- Dale - WC7S in Wy
 
 



To: 4sqrp@...
From: marjannorm@...
Date: Sun, 8 Dec 2013 09:28:28 +1000
Subject: [4sqrp] Re: Ice

 
Hi gang,
85 degrees F here at my daughters place in Brisbane, clear blue sky, gentle breezes. A quiet beer on the veranda, listening into the local 40 metre net. Bliss! Eatcha hearts out!
Kind regards
Norm vk5gi / p vk4

Sent from my iPad


Re: Ice

Wayne Dillon
 

Not sure what I'm jealous of... the temp or the beer!
Wayne - KC0PMH


On Sat, Dec 7, 2013 at 5:32 PM, WA0ITP <wa0itp@...> wrote:
 

Norm, You're killing us :o) man, are we jealous!!

----------------------------------
Back to the bench, Winter's too valuable to waste.
I love this radio stuff !
72 WA0ITP
www.wa0itp.com
www.4sqrp.com

----- Original Message -----
From: "Norman Lee" <marjannorm@...>
To: <4sqrp@...>
Sent: Saturday, December 07, 2013 5:28 PM
Subject: [4sqrp] Re: Ice

| Hi gang,
| 85 degrees F here at my daughters place in Brisbane, clear blue sky, gentle
breezes. A quiet beer on the veranda, listening into the local 40 metre net.
Bliss! Eatcha hearts out!
| Kind regards
| Norm vk5gi / p vk4
|
| Sent from my iPad
|
| ------------------------------------
|
| 4SQRP Website: http://4sqrp.com
| OzarkCon is coming April 4-5, 2014 in Branson, MO
| View Details at http://www.ozarkcon.com/index.phpYahoo Groups Links
|
|
|




--
http://www.qsl.net/kc0pmh/   Under construction but please visit anyway.
 
QRP -  EFFICIENCY AND SKILL, NOT POWER. 
 
I'm British by birth but American by CHOICE!

Jesus came to pay a debt He didn't owe because we owe a debt we cannot pay...

The Lord bless you and keep you
The Lord make His face shine upon you, and be gracious unto you
The Lord lift up his contenance upon you and give you peace.

God Bless from Wayne Dillon - KC0PMH

Joshua 24:14-15
2 Cor 5:17
1 Jn 2:17
 

4 State QRP Group NCS - 40m & 160m
4SQRP #95
FPQRP #342 (Flying Pigs QRP Club)
G-QRP-C #11504
NAQCC # 0759
QRP-ARCI #11505
SKCC #1155C
SOC #848
30MDG#1176
NEQRP #693
GORC #192
DMC (Digital Modes Club) # 06686


Re: Ice

WA0ITP
 

Norm, You're killing us :o) man, are we jealous!!

----------------------------------
Back to the bench, Winter's too valuable to waste.
I love this radio stuff !
72 WA0ITP
www.wa0itp.com
www.4sqrp.com

----- Original Message -----
From: "Norman Lee" <marjannorm@gmail.com>
To: <4sqrp@yahoogroups.com>
Sent: Saturday, December 07, 2013 5:28 PM
Subject: [4sqrp] Re: Ice


| Hi gang,
| 85 degrees F here at my daughters place in Brisbane, clear blue sky, gentle
breezes. A quiet beer on the veranda, listening into the local 40 metre net.
Bliss! Eatcha hearts out!
| Kind regards
| Norm vk5gi / p vk4
|
| Sent from my iPad
|
| ------------------------------------
|
| 4SQRP Website: http://4sqrp.com
| OzarkCon is coming April 4-5, 2014 in Branson, MO
| View Details at http://www.ozarkcon.com/index.phpYahoo Groups Links
|
|
|


Re: Carpet Static Cure

Tom Sevart
 

On 12/07/2013 14:29, David Martin wrote:
Ankle straps, that's the ticket.

If you don't have any just go to the local Sheriff's office and they'll
loan you some !!!
They have a nice selection of bracelets, too.

--
Tom Sevart N2UHC
St. Paul, KS


Re: Ice

marjannorm
 

Hi gang,
85 degrees F here at my daughters place in Brisbane, clear blue sky, gentle breezes. A quiet beer on the veranda, listening into the local 40 metre net. Bliss! Eatcha hearts out!
Kind regards
Norm vk5gi / p vk4

Sent from my iPad


Re: Carpet Static Cure

Tom Sevart
 

I remember when I was a kid and we got brand new carpet in the house. The next winter was a miserable one because we were shocking ourselves every time we touched something or someone. I remember we had a blue and green foil garland hung on the mantle of our fireplace, and if you built up a charge and touched it, it HURT! Though it was kind of fun having static fights with my sisters.

Luckily we bought a humidifier which helped until the carpet got worn down a bit.

--
Tom Sevart N2UHC
St. Paul, KS


Re: Carpet Static Cure

Mike Zedan <kn8zmich@...>
 

Keep the humidity up to the mid 40%, if you can. Just misting with a spray bottle isn't enough. A small living space may require over a gallon/day, if the dew point is low. If you have a humidifier, but don't know what your level is, then get a meter to determine where you are; They're cheap enough -

http://www.ebay.com/sch/i.html?_nkw=humidity+meter

If you don't want to get into the above, you can make your own anti-static spray, using fabric softener:

http://www.firehow.com/200912196243/how-to-make-anti-static-spray.html

You can also buy products that are made for the purpose:

http://www.amazon.com/s?ie=UTF8&page=1&rh=i%3Aaps%2Ck%3Aanti%20static%20spray

http://www.ebay.com/sch/i.html?_nkw=anti+static+spray

There are even anti-static products added to jet fuel to keep bad things from happening.

The bottom line is that static electricity can range from a nuisance to a serious danger, and cutesy answers don't solve it.


Mike, KN8Z


--------------------------------------------

On Sat, 12/7/13, Bill Cromwell <wrcromwell@gmail.com> wrote:

Subject: Re: [4sqrp] Carpet Static Cure
To: 4sqrp@yahoogroups.com, "Chuck Carpenter" <w5usj@9plus.net>
Cc: "WA0ITP" <wa0itp@mchsi.com>
Date: Saturday, December 7, 2013, 5:57 PM
















 









On 12/07/2013 05:43 PM, Chuck Carpenter wrote:

>

> Terry,

>

> Also, all cotton clothing, no synthetics and very high
humidity... :-)

>

> Chuck Carpenter, W5USJ

> EM22cv, Rains Co. TX

>

>

There was an article in one of the magazines a number of
years ago about

installing a new gasfet in a preamp in the bathroom all
steamed up by

running hot water in the shower. That was intended to
eliminate the

static problems and was reported to have worked.



73,



Bill KU8H


Re: Carpet Static Cure

Wayne Dillon
 

I have to say guys that the only real way to deal with the Carpet Static is to A: do away with the carpet, B: use a correctly grounded workstation and dissipative mat (dissipative to ground) at the workstation and C: try and keep the humidity between 30% and 70%. How do I know, well the ESD area at work (one complete room about 40 by 40 feet) is one of my areas of responsibility. The biggest deal is to use a dissipative as opposed to a completely conductive work surface. This is to bleed away the static charge from yourself as well as whatever you are working on. Also a fixture on the mat to connect a wrist strap to is necessary for complete protection. A totally conductive surface (conductive to ground) will surly remove the charge but may do it in such a way as to partially damage the component(S) you are trying to protect. Even with the above it is still possible to damage the components but it an order of magnitude less likely.
Just my $0.02 from the trenches.
72/3 es God Bless de Wayne - KC0PMH

--
http://www.qsl.net/kc0pmh/   Under construction but please visit anyway.
 
QRP -  EFFICIENCY AND SKILL, NOT POWER. 
 
I'm British by birth but American by CHOICE!

Jesus came to pay a debt He didn't owe because we owe a debt we cannot pay...

The Lord bless you and keep you
The Lord make His face shine upon you, and be gracious unto you
The Lord lift up his contenance upon you and give you peace.

God Bless from Wayne Dillon - KC0PMH

Joshua 24:14-15
2 Cor 5:17
1 Jn 2:17
 

4 State QRP Group NCS - 40m & 160m
4SQRP #95
FPQRP #342 (Flying Pigs QRP Club)
G-QRP-C #11504
NAQCC # 0759
QRP-ARCI #11505
SKCC #1155C
SOC #848
30MDG#1176
NEQRP #693
GORC #192
DMC (Digital Modes Club) # 06686


Re: Carpet Static Cure

Bill Cromwell
 

On 12/07/2013 05:43 PM, Chuck Carpenter wrote:

Terry,

Also, all cotton clothing, no synthetics and very high humidity... :-)

Chuck Carpenter, W5USJ
EM22cv, Rains Co. TX

There was an article in one of the magazines a number of years ago about installing a new gasfet in a preamp in the bathroom all steamed up by running hot water in the shower. That was intended to eliminate the static problems and was reported to have worked.

73,

Bill KU8H