[Elecraft] Hi current
I just installed my KPA 100 with the KAT100 antenna tuner. Every thing was working fine on all bands - until I attempted to tune on 40 meters. Suddenly I got an alarm and the panel is locked - I can't get to menu or any of the controls. The alarm is a continuous beeping. I removed the high power (Anderson power pole) supply and went to the low current barrel supply - no change. ??? Bob Greenwalt K6VZT ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Samlex SEC-1223 12VDC Switching P/S - RFI Reduction
Greetings folks: Thanks to Nigel Hayton, ZL2DF, I have just posted to my web site at www.n0ss.net an article which described Nigel's efforts to reduce the not insignificant switching spurs he was experiencing from his Samlex 1223 power supply. Basically, Nigel, with only a couple additions to the output circuitry of the PSU, was able to reduce his 160M birdies from the S-9 level to a level of S-1 to S-2... a pretty significant reduction, for a small investment. The PDF of this article can be found about 1/3 of the way down my rambling home page, just below the photo of the Samlex 1223. If you happen to have a Samlex 1223, you might also be interested in some service info for this power supply which can be found at the same location on my home page. The schematic which came from Samlex, was pretty shoddy, and after many photocopyings had become pretty difficult to read. I have now included an newly re-drawn copy of the schematic, along with the original copy I received. I hope you will find the new schematic a bit easier to work with. Enjoy. 73, and MANY thanks to Nigel for sharing his success with us. Tom HammondN0SS ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K1 sold
Thanks , John KF7OM ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Gel Cell Charger
Hi All, Some of you wanted info on a gel cell charger I made in the 1990's. I have uploaded the article to: http://users.ev1.net/~spituch/Steve's%20Page/Radio/Steve's%20Radio%20Page.ht m If you have any questions send me an e-mail. Regards, and 72 and a half, Steve Pituch, W2MY/5 --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.811 / Virus Database: 552 - Release Date: 12/13/2004 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Missing knurled ring on Heil mic?
I don't mean to re-hash the same subject either, but I guess I missed the end of this discussion also. Regarding the vertical tube that comes from the stand to the mic, can someone tell me if the threads on the bottom section are supposed to screw all of the way into the base? Mine goes in about half way and then there is a few rows of threads still visible. I haven't tried to apply too much pressure as I don't want to strip the threads that are already in the base. Or, perhaps I have it upside down? Thanks, Tom WB2QDG K2 1103 - Original Message - From: John <[EMAIL PROTECTED]> Date: Thursday, December 16, 2004 7:25 pm Subject: [Elecraft] Missing knurled ring on Heil mic? > What was the final outcome on the Heil deskmic knurled ring that > was cussed > and discussed here a while back? Should there have been 1 or 2 > rings with > the mic? Mine had 1 and it went together ok but it would probably > look > better with the second ring. If there should be 2, how do we go > about > getting the second one? > -- > John K7SVV > > ___ > Elecraft mailing list > Post to: Elecraft@mailman.qth.net > You must be a subscriber to post to the list. > Subscriber Info (Addr. Change, sub, unsub etc.): > http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/subscribers.htm > Elecraft web page: http://www.elecraft.com > ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] units of measurement, mmfd>pf, puffing for nf [END of threads]
Interesting topic, but we're overloading the list with way too many
postings.
Let's let these threads rest for now :-)
73, Eric WA6HHQ
List Moderator
Brian Wruble wrote:
Guys, Steve was kidding, and I took the bait. My face continues to redden
as the thread goes on. In my own defense --- it was before I'd had my
coffee, my cat was sitting on the mousepad, and I have a teenage daughter.
73 and Happy Holidays to all
Brian, W3BW
-Original Message-
From: Brian Wruble [mailto:[EMAIL PROTECTED]
Sent: Friday, December 17, 2004 09:02
To: 'Steve Jackson'
Subject: RE: [Elecraft] units of measurement, explained
Very good. You got me! Also very funny. I am happy to be your straight
man. 73, Brian
-Original Message-
From: Steve Jackson [mailto:[EMAIL PROTECTED]
Sent: Friday, December 17, 2004 08:59
To: Brian Wruble
Subject: RE: [Elecraft] units of measurement, explained
Uh-oh. Is my humor really that dry?
... or is yours drier? ;-)
--- Brian Wruble <[EMAIL PROTECTED]> wrote:
How in the world did a change to solid state affect
a naming convention? 1
Hz = 1 cps, regardless of the circuit devices. 1
uuf ("micro micro farad")
= 1 pf, regardless of the devices used in the
circuit. I am baffled by this
notion. Can you provide more evidence? 73 de Brian
W3BW
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FW: [Elecraft] units of measurement, explained
Guys, Steve was kidding, and I took the bait. My face continues to redden
as the thread goes on. In my own defense --- it was before I'd had my
coffee, my cat was sitting on the mousepad, and I have a teenage daughter.
73 and Happy Holidays to all
Brian, W3BW
-Original Message-
From: Brian Wruble [mailto:[EMAIL PROTECTED]
Sent: Friday, December 17, 2004 09:02
To: 'Steve Jackson'
Subject: RE: [Elecraft] units of measurement, explained
Very good. You got me! Also very funny. I am happy to be your straight
man. 73, Brian
-Original Message-
From: Steve Jackson [mailto:[EMAIL PROTECTED]
Sent: Friday, December 17, 2004 08:59
To: Brian Wruble
Subject: RE: [Elecraft] units of measurement, explained
Uh-oh. Is my humor really that dry?
... or is yours drier? ;-)
--- Brian Wruble <[EMAIL PROTECTED]> wrote:
> How in the world did a change to solid state affect
> a naming convention? 1
> Hz = 1 cps, regardless of the circuit devices. 1
> uuf ("micro micro farad")
> = 1 pf, regardless of the devices used in the
> circuit. I am baffled by this
> notion. Can you provide more evidence? 73 de Brian
> W3BW
>
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Re: [Elecraft] mmfd>pf change over
You guys are taking this waaay too serious .. he was FOOLING AROUND! On Fri, 17 Dec 2004 16:34:28 +, Bill_Harris <[EMAIL PROTECTED]> wrote: > Good morning Steve: > I'm interested where you got your source of information on the metric > change over from mmfd to pf. I thought the Germans were using "Hertz" back > in the 30's. If my memory serves me correctly, that was slightly before the > transistor came on the scene. Appreciate any info you can direct me too. > > 73's & Merry Xmas > > Bill_Harris > > > uuF was used to spec cap values in tube equipment. > > The introduction of semiconductors forced a conversion > > to use the 'pico' prefix. > > > > Same with hertz. Tube gear measured frequency in > > cycles per second. The transistor changed all of > > that. > > > > Today, the use of surface mount parts has caused the > > need for 'nano.' > > > > > > > > > > > > __ > > Do you Yahoo!? > > Meet the all-new My Yahoo! - Try it today! > > http://my.yahoo.com > > > > > > ___ > > Elecraft mailing list > > Post to: Elecraft@mailman.qth.net > > You must be a subscriber to post to the list. > > Subscriber Info (Addr. Change, sub, unsub etc.): > > http://mailman.qth.net/mailman/listinfo/elecraft > > > > Help: http://mailman.qth.net/subscribers.htm > > Elecraft web page: http://www.elecraft.com > ___ > Elecraft mailing list > Post to: Elecraft@mailman.qth.net > You must be a subscriber to post to the list. > Subscriber Info (Addr. Change, sub, unsub etc.): > http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/subscribers.htm > Elecraft web page: http://www.elecraft.com > ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] mmfd>pf change over
Good morning Steve: I'm interested where you got your source of information on the metric change over from mmfd to pf. I thought the Germans were using "Hertz" back in the 30's. If my memory serves me correctly, that was slightly before the transistor came on the scene. Appreciate any info you can direct me too. 73's & Merry Xmas Bill_Harris > uuF was used to spec cap values in tube equipment. > The introduction of semiconductors forced a conversion > to use the 'pico' prefix. > > Same with hertz. Tube gear measured frequency in > cycles per second. The transistor changed all of > that. > > Today, the use of surface mount parts has caused the > need for 'nano.' > > > > > > __ > Do you Yahoo!? > Meet the all-new My Yahoo! - Try it today! > http://my.yahoo.com > > > ___ > Elecraft mailing list > Post to: Elecraft@mailman.qth.net > You must be a subscriber to post to the list. > Subscriber Info (Addr. Change, sub, unsub etc.): > http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/subscribers.htm > Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] units of measurement, explained
At 07:22 AM 12/17/2004, Steve Jackson wrote: Today, the use of surface mount parts has caused the need for 'nano.' Not to mention the need for an increase in cursing at the workbench. :-) Pete NV4V ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Puffing to keep up with the Nanofarads...
At 09:06 PM 12/16/2004, Doug Faunt N6TQS +1-510-655-8604 wrote... >And "cycles" for frequency, by itself means very little. The proper >term was "cycles per second", which is what "Hertz" replaces, not just >"cycles" > >I don't think Mr. Hertz used "cycles" since he was a scientist, and >would think accuracy of expression was important, but he probably used >"cycles per second". One might presume so, incorrectly. It was common convention to use kilocycles (KC) and megacycles (MC), excluding any reference to "per second." Here's an ARC-5 transmitter, showing same: http://hug-a-bug.com/arc5b.jpg This convention also carried over into more formal texts: http://www.nj7p.org/manuals/arc-5/arc-5.html#_Toc460591310 Hertz himself, although occasionally making reference to "times per second", more often used "period of oscillation" and usually used wavelength, which makes sense, since this was much easier to measure at the time. Here's a brief portion of "Electrical Waves": http://historical.library.cornell.edu/gifcache/cdl/cdl334/00134.TIF6.gif ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Is it possible to monitor digital transmissions.
I monitor my digital transmissions through an audio out jack on my rigblaster. Simply plug the computer speakers into the audio out jack on your interface and you should be able to hear the tones being generated by the computer. -- R. Kevin Stover, ACØH ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Re:Elecraft] K1 on a sailboat
Before I insulated my backstay I used Hamsticks on the stearn. Since I don't have a copper plate on the hull I threaded 33ft of insulated tinned wire through poly rope with a small float on the end and let it trail in the water for a ground. Over salt water you don't need an elaborate antenna system for good results! I would think that the suggested vertical wire hoisted aloft would also give good results. 73 es enjoy your tripTed...AA5CK -- No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.296 / Virus Database: 265.5.4 - Release Date: 12/15/2004 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] OT power supply question
My Astron does it also, I suspected it was the capacitors, now thanks to you guys I know for sure. Now, can someone tell me why I make the same noise when my wife wakes me up at 5 am to get me off to work??? Happy Holidays to all, Tom WB2QDG K2 1103 - Original Message - From: "[EMAIL PROTECTED]" <[EMAIL PROTECTED]> Date: Thursday, December 16, 2004 12:31 pm Subject: [Elecraft] OT power supply question > > I use a Pyramid power supply. PS35G to be exact. Sometimes when > I turn it on it makes a thudding sound. But it works fine and it > doesnt do it all the time. I am not the original owner and Ive > had it for a couple years so I know its getting pretty old by now. > Wondering what would make that noise. Kinda sounds like someone > hit a metal box with a mallet best I can describe it. > > WT5Y > ___ > Elecraft mailing list > Post to: Elecraft@mailman.qth.net > You must be a subscriber to post to the list. > Subscriber Info (Addr. Change, sub, unsub etc.): > http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/subscribers.htm > Elecraft web page: http://www.elecraft.com > ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Is it possible to monitor digital transmissions.
I am new to my K2 , #4472, and would like to know if it is possible to monitor my digital transmissions. On CW I can hear what I am sending, but not on PSK, rtty and Hell modes. Is that normal. Thanks in advance to all who respond. Jerry, N2UZ ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Puffing to keep up with the Nanofarads...
Yes, this does seem logical... I have a kit of precision resistors that's at least 15 years old that is marked in that way... so it's not new. I know there have been recent attempts to standardize on a new system for parts... put forth by CCIR or IEEE or someone. I guess I can deal with change, but there's something comforting about the system that was in place when I used to flip through the Allied and Lafayette catalogs as a youth... when the warm glow of vacuum tubes permeated the shack, when we used to have to trudge through a mile of 6' deep snow to go to school, when an atom was only made up of protons, neutrons and electrons... and when Superman stood for Truth, Justice and the American way ;-) Larry N8LP In Europe at least things seem to have gone another step forward in some quarters with what was expressed as 4.7nF (0.0047uF) now often written as 4n7. This follows through in other decades as 4p7 for 4.7pF, 4u7 for 4.7uF and so on. The idea also seems to have been used with resistors where a 0.47 ohm is seen as R47, a 4.7 ohm is now seen as 4R7, a 4.7K ohm as 4K7 and a 4.7M ohm as 4M7. The method has less chance of misinterpretation it would seem. The biggest change on my part was going from metres to kc/s and the like, kc/s to kHz not really representing a problem. Bob, G3VVT ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] OT power supply question
John - I have known some supplies to do this with the initial current inrush. A problem reported by some is "singing" of the transformer, usually due to loose laminations or transformer not tightened to case. I have never been fond of the Pyramid power supplies. My experience is that Pyramid achieved lower retail costs than Astron and other suppliers by "cutting corners" with the heat sink size (thermal mass) and filter capacitor ratings. The eHam.net product reviews appear to support my observations and experience http://www.eham.net/reviews/detail/974 http://www.eham.net/reviews/detail/960 As Dave Metz points out (and the reviews) some these short comings can be addressed by replacing key components with better values and ratings. http://www.seits.org/features/pwrsup.htm w9gb > Message: 3 > Date: Thu, 16 Dec 2004 17:31:49 GMT > From: WT5Y > Subject: [Elecraft] OT power supply question > To: Elecraft mailing list > > I use a Pyramid power supply. PS35G to be exact. Sometimes when I turn it > on it makes a > thudding sound. But it works fine and it doesn't do it all the time. I am > not the original owner > and I've had it for a couple years so I know its getting pretty old by now. > Wondering what would > make that noise. Kinda sounds like someone hit a metal box with a mallet > best I can describe > it. > > WT5Y > ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] units of measurement, explained
At 08:08 AM 12/17/2004, Brian Wruble wrote...
>How in the world did a change to solid state affect a naming convention? 1
>Hz = 1 cps, regardless of the circuit devices. 1 uuf ("micro micro farad")
>= 1 pf, regardless of the devices used in the circuit. I am baffled by this
>notion. Can you provide more evidence? 73 de Brian W3BW
Post hoc, ergo propter hoc. It's an error in logic, same as concluding that
your alarm clock causes the sun to rise. That is of course incorrect, since it
actually causes the horizon to set.
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RE: [Elecraft] units of measurement, explained
How in the world did a change to solid state affect a naming convention? 1
Hz = 1 cps, regardless of the circuit devices. 1 uuf ("micro micro farad")
= 1 pf, regardless of the devices used in the circuit. I am baffled by this
notion. Can you provide more evidence? 73 de Brian W3BW
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Steve Jackson
Sent: Friday, December 17, 2004 07:22
To: elecraft@mailman.qth.net
Subject: [Elecraft] units of measurement, explained
uuF was used to spec cap values in tube equipment.
The introduction of semiconductors forced a conversion
to use the 'pico' prefix.
Same with hertz. Tube gear measured frequency in
cycles per second. The transistor changed all of
that.
Today, the use of surface mount parts has caused the
need for 'nano.'
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Re: [Elecraft] Puffing to keep up with the Nanofarads...
In a message dated 16/12/04 18:44:22 GMT Standard Time, [EMAIL PROTECTED] writes: Larry, N8LP wrote: Oops... it was pointed out to me off-list that the required cap is 4.7 "nf"... not the 4.7 "pf" I misread it as. I would expect 4.7 nf more commonly to be written as .0047 uf, but maybe it's an international thing. In Europe at least things seem to have gone another step forward in some quarters with what was expressed as 4.7nF (0.0047uF) now often written as 4n7. This follows through in other decades as 4p7 for 4.7pF, 4u7 for 4.7uF and so on. The idea also seems to have been used with resistors where a 0.47 ohm is seen as R47, a 4.7 ohm is now seen as 4R7, a 4.7K ohm as 4K7 and a 4.7M ohm as 4M7. The method has less chance of misinterpretation it would seem. The biggest change on my part was going from metres to kc/s and the like, kc/s to kHz not really representing a problem. Bob, G3VVT ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] units of measurement, explained
uuF was used to spec cap values in tube equipment. The introduction of semiconductors forced a conversion to use the 'pico' prefix. Same with hertz. Tube gear measured frequency in cycles per second. The transistor changed all of that. Today, the use of surface mount parts has caused the need for 'nano.' __ Do you Yahoo!? Meet the all-new My Yahoo! - Try it today! http://my.yahoo.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
