Re: [Elecraft] RE:RF Ground

If the center conductor and shield are shorted at the rig, ONLY the shield has any effect, and velocity factor does not enter into the action of this type of counterpoise. There is another type using coax, where a capacitor shorts the shield and braid for RF purposes, (0.001 mf ceramic disc cap

Re: [Elecraft] Re: K2 Pin available online. How many want a K1?

Although it is not as fancy as a pin, I made a logbook/notebok for my KX1 using the downloadable QSL card image from the Elecraft site. It is at http://www.cafepress.com/wa5znu_kx1 ... There is a coffee mug there too but I never ordered one. Also a K1 journal at http://www.cafepress.com/wa5zn

Re: [Elecraft] Elecraft Product Ideas

On May 22, 2006, at 8:35 AM, Fred (FL) wrote: Anyone out there - think a 200Watt PEP tube 6146 amplifier - would cut it with a K2? Why? Why not? You gonna run four tubes to get 200 watt PEP out? I've been through this, Fred. 6146's were great in their day, but that day has passed. Get the

RE: [Elecraft] Elecraft RF Probe

Thanks, Ron, and everyone. I am trying to measure the RF voltage at the dummyload, and calibrate the K2 RF meter. The probe is fine at 20watts, what everyone has recommended I check it at. I was just trying to read it at 100watts to verify that the K2 meter tracked with the output. That's w

[Elecraft] More Dayton ...

I spent a few minutes hanging out at the Elecraft booth at Dayton. There has been enough said about the excitement surrounding the new amplifier(s), they are well engineered products that address a market need. The real news about Dayton is the almost universal appeal of ALL Elecraft products

RE: [Elecraft] Elecraft RF Probe

As you make the RF probe better able to handle high RF voltages you will also cause it to be less accurate at lower RF voltages. The common RF probe diodes have a turn-on voltage of about 0.2 volts. Below that, they are almost open circuits and have no output. Higher PRV diodes have turn-on voltag

Re: [Elecraft] Elecraft RF Probe

My brain got got a little ahead of my fingers. That should be _without_ extinguishing the diode... Oops... On May 22, 2006, at 6:47 PM, Jack Brindle wrote: Interesting solution. Be aware that neon lamps fire at about 60-70 volts. At that voltage you have _definitely_ exceeded the PRV of a

RE: [Elecraft] K2 5436

Ed, The Hi-Cur message comes from the base K2, not the KPA100. Since your KPA100 is reporting only 1 watt output (actually this may be none), the base K2 is trying to pump full power into the amp in an attempt to produce some power output but it is failing. You should look at your KPA100 to see

Re: [Elecraft] Elecraft RF Probe

Interesting solution. Be aware that neon lamps fire at about 60-70 volts. At that voltage you have _definitely_ exceeded the PRV of a 1N4148! You might want to consider a heavier diode in this application - the 1N4007 should take quite a bit higher PRV, allowing the neon lamp to illuminate

RE: [Elecraft] And now, for my next trick...

Vin, If you follow the instructions for the KXB3080 "to the letter", it will not make any difference... BUT -- there is some close fits between the KXAT1 relay cases and the LPF assembly for the KXB3080, so it would be better to build the KAT1 first, and then you can adjust the physical position

[Elecraft] K2 5436

Thought I was making great progress right through KPA100 but.. KPA100 shows Hi-Cur 1.0 1.0-1 on tune/all bands at 5w so back back to K2 per other postings to solve Hi-cur. Re-aligned transmitter all bands output OK except for 12meters only shows 2 tenths w output. Not sure if this is related to

RE: [Elecraft] Elecraft RF Probe

Now, that solution shows the power of the group! All this piker could do was look up a 200V diode or suggest connecting two in series. When the NE-51 lights you know you have exceeded the diode reverse voltage! And it's time to add a resistance pad. Mike Scott AE6WA Tarzana, CA Elecraft KX1 40M

[Elecraft] And now, for my next trick...

Hey everybody. Welcome home to our intrepid Dayton attendees. I hope to be at Dayton at least once in my life, but now to the crux of the matter. I plan to build a KX-1 next. I can't afford to get all the accessories at once, but I do want eventually to put in the 30/80 option, the ATU, and the

[Elecraft] Posting on the Reflector Problems.

I know this is off topic, but I am having problems with my yahoo email account. Every time I want to post to the Reflector, Outlook Express opens instead of Yahoo. I am eager to start learning about my new K2 rig, but I cant post through my Yahoo email. I hope someone can help with this. Thanks.

Re: [Elecraft] QRO

It'll also match a 4:1 SWR at 1000 Watts. 73, Tom N0SS At 06:04 PM 5/22/2006, Earl W Cunningham wrote: Lou wrote: "...but the Elecraft will only match 3:1 at 1500 watts, not a lot of room." == It means a lot when you consider that the Alpha and Acom amps fault at 2:1. 73, de Earl,

[Elecraft] RE: QRO

That makes sense Wayne. I was not faulting the tuner at all. The comment I was responding was that having the internal tuner was an advantage of the new amp. Its somewhat limited range may not obviate the need for a broader range external tuner if required by the antenna system. I run SteppIR anten

Re: [Elecraft] Elecraft RF Probe

Funny you should mention that -- just in the past few days I was browsing through an old [1968 edition] ARRL "Hints and Kinks". In an article titled "Diode Protection for the Heath R.F. Probe" the author suggested adding a NE-51 neon lamp across the diode (a solution he came up with after frying

RE: [Elecraft] QRO

The latter will be my approach for SO2R contesting eventually. Given the features already leaked, it is clear this amp is aimed at the contesting crowd as one of the primary potential customers. Anyone know of any other amp out there at any price with dual inputs and outputs with auto-bandswit

Re: [Elecraft] QRO

No, it should be here & I know which one it is and I was hoping for a better device. http://www.advancedpower.com/rfdisplay/default.aspx?marketid=13&appid=-1 On May 22, 2006, at 3:18 PM, Bill NY9H wrote: it an APT device http://www.advancedpower.com/rfdisplay/default.aspx? marketid=3:4

Re: [Elecraft] Elecraft Product Ideas

In a message dated 5/22/06 8:38:50 AM Eastern Daylight Time, [EMAIL PROTECTED] writes: > As I said before, I DO NOT want to install an > hf amplifier INSIDE my K2. A nice outboard amp > would suit me. As others have already pointed out, just build the KPA100 in an EC2 enclosure, Elecraft c

Re: [Elecraft] K2 Pin available online. How many want a K1?

I want a K1 pin! 72 de JT, W6FO ___ 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:

[Elecraft] Re: QRO

On May 22, 2006, at 3:33 PM, Lou Laderman wrote: True, but the Elecraft will only match 3:1 at 1500 watts Hi Lou, The tuner can match a wider range (about 5:1) at reduced power, and this can automatically be handled in the amp thanks to a switchable input attenuator. The behavior of th

[Elecraft] more on the KPA800/1500

In the KPA series, we're using a different construction technique than that of other amps. Rather than interconnect modules using a slew of RF and control cables, we use a single large motherboard, into which all functional modules simply plug in. (It's very Elecraftish, and looks better, too :

Re: [Elecraft] QRO

Lou wrote: "...but the Elecraft will only match 3:1 at 1500 watts, not a lot of room." == It means a lot when you consider that the Alpha and Acom amps fault at 2:1. 73, de Earl, K6SE ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net Y

Re: [Elecraft] Elecraft RF Probe

H. That means you need more than 100V. Maybe a pair if 1N5711s in series with balancing resistors? Larry N8LP Stan Rife wrote: I forgot to mention that I put a 1N4148 in and it seems to have taken it out too. I put too much voltage on my poor probe. Is there a heavier

Re: [Elecraft] K2 Pin available online. How many want a K1?

Jon: The trouble with the-. --- -.-. --- -.. .pin is that those who may want it will have no idea what it is. But, then, maybe that's appropriate. best wishes, dave belsley, w1euy On May 22, 2006, at 6:24 PM, Jon wrote: We we quite pleased that so many of you bough

[Elecraft] Re: K2 Pin available online. How many want a K1?

On May 22, 2006, at 3:24 PM, Jon wrote: We we quite pleased that so many of you bought a K2 pin while at Dayton. Nice work on the pin, Jon. I'm sure a K1 pin would also do well, but don't forget the KX1! 73, Wayne N6KR --- http://www.elecraft.com ___

Re: [Elecraft] Elecraft RF Probe

How about a 1N5711? Larry N8LP Stan Rife wrote: I put too much voltage on my poor probe. Is there a heavier diode that will take a little more voltage, say around 70v, that I can replace the 1N31A with? Stan Rife W5EWA Houston, TX K2 S/N 4216

RE: [Elecraft] QRO

One of the Alpha customers allegedly burned down his house by performing a "stupid antenna trick". (Unmatched antenna in unfortunate proximity to his deck) Ed Lambert KD3Y > ...but at these voltages and currents... ___ Elecraft mailing list Post to:

RE: [Elecraft] QRO

True, but the Elecraft will only match 3:1 at 1500 watts, not a lot of room. Lou -Original Message- From: Ed Lambert [mailto:[EMAIL PROTECTED] Sent: Monday, May 22, 2006 5:11 PM To: [EMAIL PROTECTED]; Elecraft@mailman.qth.net Subject: RE: [Elecraft] QRO Antenna tuning in addition to

[Elecraft] K2 Pin available online. How many want a K1?

We we quite pleased that so many of you bought a K2 pin while at Dayton. If we can get at least 300 reservations for a K1 pin we can make it. The K2 picture on our website does not do it justice. Everyone who saw it in person liked the design. Glad it made its way over to the reflector You can g

[Elecraft] Elecraft RF Probe

I forgot to mention that I put a 1N4148 in and it seems to have taken it out too. I put too much voltage on my poor probe. Is there a heavier diode that will take a little more voltage, say around 70v, that I can replace the 1N31A with? Stan Rife W5EWA Houston, TX K2 S/N 4216

[Elecraft] Elecraft RF Probe

I put too much voltage on my poor probe. Is there a heavier diode that will take a little more voltage, say around 70v, that I can replace the 1N31A with? Stan Rife W5EWA Houston, TX K2 S/N 4216 ___ Elecraft mailing list Post to: Elecraft@mai

RE: [Elecraft] QRO

Antenna tuning in addition to auto tuning is a very desirable feature for me. The Elecraft amps include antenna tuning in addition to auto tuning. Alpha says they are working on an antenna tuner. So, add the cost of that unit to the $9100.00. Of course, tube amplifiers are maybe not as sensitive to

Re: [Elecraft] QRO

At 02:19 PM 5/22/2006, Lou Laderman wrote: >Isn't "conventional wisdom" that tube-based amplifiers are inherently >more rugged and forgiving that transistor amplifiers, easier to work on >or repair in the field, and that tube amps are the "way to go?" >Has that changed, and other than price alone,

Re: [Elecraft] Hey, you Dayton hf attendees

Earl W Cunningham wrote: What nobody has mentioned in this thread about the Elecraft solid state amps is that the output circuit is not only autotune, but there is also a built-in antenna tuner. Alpha and Acom can't match that! Pun intended? Larry N8LP __

Re: [Elecraft] QRO

At 04:19 PM 5/22/2006, Lou Laderman wrote: and other than price alone, why should I consider the new Elecraft amp over a tube design featuring auto tuning such as the Acom or the Alpha (older 87A or the new 9500)? 1. the auto tune in the kpa 800/1500 will be faster, since there are no induc

Re: [Elecraft] QRO

Isn't "conventional wisdom" that tube-based amplifiers are inherently more rugged and forgiving that transistor amplifiers, easier to work on or repair in the field, and that tube amps are the "way to go?" Has that changed, and other than price alone, why should I consider the new Elecraft amp ove

Re: [Elecraft] Hey, you Dayton hf attendees

What nobody has mentioned in this thread about the Elecraft solid state amps is that the output circuit is not only autotune, but there is also a built-in antenna tuner. Alpha and Acom can't match that! Saw them at Visalia last month and am eagerly awaiting their sales debut. 73, de Erl, K6SE __

Re: [Elecraft] QRO

Ten Tec also sells ready made enclosures, steel or aluminum : http://www.tentec.com/ Rich k2cpe K2 #1102 --- Brian F. Wruble wrote: I have always wanted to try building one of those big amplifiers. One thing t

[Elecraft] FS: KX1 Built and Fully Loaded

KX1 KXB30 KXAT1 KXPD1 Purchased in Oct. 2005. $365 shipped CONUS. Paypal preferred. Tedd K6OI ___ 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.): h

[Elecraft] K2 Station QRP(BAT)-QRO

Elecraft K2/100 - 02110 Rev B (Latest Elecraft Mods) Options: KSB2 - SSB Option K160RX - 160M / 2nd RX Antenna Option K60XV - 60M / Xvrtr Intf. Option KAT100-2 - 100W ATU with EC2 panels KAT100PNL - Kit to convert KAT100-1 to -2 KAT2 - 20W Internal Auto Tuner KBT2 - Internal 2.9AH Battery Kit KDS

RE: [Elecraft] QRO

Non-K2 owners - take note: It is not even necessary to have one K2 to drive the Elecraft amp. Of course, many would also like to have the K2 as one or both transcivers. Don W3FPR -Original Message- I had not yet thought that thru,,, Since the amp take 2 rigs, elecraft was wise to figure

[Elecraft] Power adjustment

I had gone through the procedure of setting R26 to match the front panel control. After that, I did Tom's RFC-10 mod to get rid of the parasitics on 40m. I noticed today that my actual output is about 20watts lower than what I have the front panel control set for. Would moving RFC-

Re: [Elecraft] QRO

tom said: you can actually have two DIFFERENT rigs connected at the same time and still control the amp with EITHER rig.,, I had not yet thought that thru,,, Since the amp take 2 rigs, elecraft was wise to figure the other radio might not be a K2 !!! COOL.. good to see ya To

[Elecraft] FS: unbuilt KSB2 and KIO2

I have the latest version un-built for each: KSB2 asking $95 shipped CONUS. KIO2 asking $85 shipped CONUS. Buy both for $170 shipped CONUS. Ron ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list.

Re: [Elecraft] QRO

This means more power splitters and combiners! Can someone please tell us exactly which mosfets are used in the KPA800? On May 22, 2006, at 11:00 AM, Ed Lambert wrote: The big amp uses 16 FET's (not Motorola but I can't remember which ones)

[Elecraft] Cute blond woman - & nerds

When a cute blond woman cannot make it to the front of a pack of guys, you know you're dealing with a bunch of true nerds and geeks! :-) - Keith - -Original Message- > My wife tried to surprise me with a KX1 but could not get near the > booth, even though she is blond and cute; I ha

Re: [Elecraft] QRO

Hi Jim, et al: Oh, I suspect they'll sell MANY amps... and NOT just to Elecraft owners. The mere fact that the KPA800/1500 is NOT specific to the Elecraft line of products, means that it'll work with just about ANY current-production transceiver, and will many older production rigs as well, p

Re: RE: [Elecraft] Hey, you Dayton hf attendees

G'day, Think I may have to wait 10 years or so to catch a used one on ebay for under 2,000, Cant do that 4 and 5,000 thing. Sadly Elecraft has been unbelievably coy about these items. Sure you can go to an Hamvention and look at one and apparently Eric has now lost his voice telling all. C

Re: [Elecraft] QRO

Brian F. Wruble wrote: I have always wanted to try building one of those big amplifiers. One thing that stops me is that I have no idea where you get or how you build all the "sheet metal" parts --- complicated pieces of chassis, etc. Anybody out there who knows how people manage to build or so

Re: [Elecraft] QRO

Brian, In the past, there were 3 basic options; I suspect they are the same today: 1. Buy a standard sized box to use as the chassis; use a drill press to drill small screw holes after your layout is determined and inked in the box. Use a chassis punch set to cut the larger hol

[Elecraft] Re: Hey, you Dayton hf attendees

My wife tried to surprise me with a KX1 but could not get near the booth, even though she is blond and cute; I had to muscle in later to complete the purchase. I must have been on break :) Wayne N6KR --- http://www.elecraft.com ___ Elecraf

Re: [Elecraft] Elecraft Product Ideas

On May 22, 2006, at 5:35 AM, Fred (FL) wrote: As I said before, I DO NOT want to install an hf amplifier INSIDE my K2. A nice outboard amp would suit me. What are my small HF AMP choices, in the 100/200W PEP ranges? - HF Packer @ 35amp - hardly enough DB gain. - Tokoyo 100W - a bit illegal

RE: [Elecraft] QRO

I have always wanted to try building one of those big amplifiers. One thing that stops me is that I have no idea where you get or how you build all the "sheet metal" parts --- complicated pieces of chassis, etc. Anybody out there who knows how people manage to build or source these? Thanks. 73

[Elecraft] Re: net

There were Flying Pigs from 7040 to 7050 kHz. The standard Elecraft CW Net frequency is 7045 kHz. It had far too many Pigs to allow me to run the net there. 7044 kHz was quiet when I sent my series of QRL ? so I ran the net there. No one owns any frequencies in the amateur radio spectrum.

Re: [Elecraft] Elecraft Product Ideas

Why don't you build a KPA100 and put it in a separate EC2 enclosure as many, myself included, have done. &3, Doug W6JD -- Original message -- From: "Fred (FL)" <[EMAIL PROTECTED]> > As I said before, I DO NOT want to install an > hf amplifier INSIDE my K2. A nice out

Re: [Elecraft] QRO

michael taylor wrote: I'm curious, what makes RF amplifiers fairly expensive projects? Tube amplifiers are expensive because high power components (HV variable capacitors, high power bandswitches, power transformers, tubes, sockets, etc.) are expensive. In addition, although the basic circu

Re: RE: [Elecraft] Hey, you Dayton hf attendees

>From: Craig Rairdin <[EMAIL PROTECTED]> >Date: Mon May 22 10:15:42 CDT 2006 >To: elecraft@mailman.qth.net >Subject: RE: [Elecraft] Hey, you Dayton hf attendees Think I may have to wait 10 years or so to catch a used one on ebay for under 2,000, Cant do that 4 and 5,000 thing. Bill KA3IXF >>

RE: [Elecraft] Hey, you Dayton hf attendees

-Original Message- From: Ed Lambert [mailto:[EMAIL PROTECTED] Sent: Monday, May 22, 2006 8:23 AM To: 'N2TK, Tony' Subject: RE: [Elecraft] Hey, you Dayton hf attendees Yes I agree that the KPA 1500 was the hit of the show. My informal survey showed higher traffic at the Elecraft Bo

RE: [Elecraft] QRO

For me it is the cost of the tube ~$600, the enclosures (I was planning to purchase new) ~$300 -$400, power supply transformer ~$500 - $600, power supply capacitor ~$400 -$500, vacuum variable capacitors several hundred dollars, etc. I was planning to purchase all new; considerable savings by look

Re: [Elecraft] QRO

The reasons amps seem expensive: 1) They use expensive parts if bought new. Manufacturers can't/won't/don't use surplus, so they have to pay full price for everything. 2) Many of the parts are expensive because they're custom and/or low quantity items. 3) The market is relatively limited,

Re: [Elecraft] QRO

On 5/22/06, Ed Lambert <[EMAIL PROTECTED]> wrote: I am no expert on QRO but I am in the process of building the 3CX1500D7 amp in the 2006 handbook. I am as interested in the engineering aspects of QRO as in the engineering aspects of QRP. The economics of my project are getting a little out of h

Re: Fw: [Elecraft] Coolest Thing at Dayton--PIN

the K2 pin ( I HAD to buy one ) looks correct H X W the pin is with a perspective from just above, which shows the lid & speaker, and looks fine back here at the shack. I am resisting measuring to determine that it is off dimensionally, I'll just enjoy it. Perhaps the web sit

RE: [Elecraft] Hey, you Dayton hf attendees

> Any mention of when they will be for sale? October was mentioned. Tentative pricing: $5900/$5500 assembled/kit for 1500W; $3900/$3500 assembled/kit for 800W. The box was bigger than I thought it would be. Didn't take any measurements, and to my disappointment I realized I got home without ta

Re: [Elecraft] Elecraft Product Ideas

Hello Fred, As I said before, I DO NOT want to install an hf amplifier INSIDE my K2. A nice outboard amp would suit me. What are my small HF AMP choices, in the 100/200W PEP ranges? KPA100 in an EC2. See Enjoy! Lyle KK7P ___

[Elecraft] QRO

I am no expert on QRO but I am in the process of building the 3CX1500D7 amp in the 2006 handbook. I am as interested in the engineering aspects of QRO as in the engineering aspects of QRP. The economics of my project are getting a little out of hand so I visited the Alpha Booth at Dayton to see

RE: [Elecraft] Hey, you Dayton hf attendees

What new amp? Just kidding. I think Eric was losing his voice from talking about the new amp. I feel the KPA1500 was the hit of the show. Looks like we got to wait till fall to get one. Eric was taking a list of those interested in getting more info and/or purchasing one. The KPA1500 was using a pa

Re: [Elecraft] Hey, you Dayton hf attendees

Elecraft is one of the few booths I got a chance to visit as I was chained to my own booth for the whole show. It's not something I would buy, but they sure looked well done. I wonder if it's a precursor to a new contest grade K3 with integral SO2R capability??? Amazingly, even though I only

[Elecraft] Hey, you Dayton hf attendees

Can't believe no one has mentioned the new amps. I await opinions of the amps. Are you attendees so QRP you didn't even look at em?? Let's hear it from you QRO guys. I'd like to know your opinion. Any mention of when they will be for sale? I really like what I have seen and heard so far

Re: [Elecraft] WARNING ... KXPD1-K2 Paddle Clamp ...

Well, Ken, that one made it through. I guess Boston College has its priorities. best wishes, dave belsley, w1euy On May 22, 2006, at 9:37 AM, Ken Alexander wrote: We'll be sure not to send you any messages about antenna erection techniques! 73 - Ken, VE3HLS --- "David A. Belsley" <[EM

Re: [Elecraft] WARNING ... KXPD1-K2 Paddle Clamp ...

We'll be sure not to send you any messages about antenna erection techniques! 73 - Ken, VE3HLS --- "David A. Belsley" <[EMAIL PROTECTED]> wrote: > > Great technique...and the method of insertion is > right/left > > Well, that previous line caused this message to be > placed in the Junk > fold

Re: [Elecraft] WARNING ... KXPD1-K2 Paddle Clamp ...

On May 21, 2006, at 11:31 PM, Thom R LaCosta wrote: On Sun, 21 May 2006, Ken Alexander wrote: My...such high-tech solutions! I just take my shoes off and walk around the area barefoot for the rest of the day. The missing parts eventually embed themselves in my foot...problem solved. Natura

[Elecraft] Elecraft Product Ideas

As I said before, I DO NOT want to install an hf amplifier INSIDE my K2. A nice outboard amp would suit me. What are my small HF AMP choices, in the 100/200W PEP ranges? - HF Packer @ 35amp - hardly enough DB gain. - Tokoyo 100W - a bit illegal to buy - HF SuperPro 100W - if it becomes availabl