Re: [Elecraft] Linear thoughts

Perhaps a new, legal limit power amplifier should be non-linear so as to achieve very high efficiency. Broadcasters seem to use such designs routinely, and the latest QEX described a ham version under development. __ Elecraft mailing

Re: [Elecraft] Linear thoughts

I want to echo that a KPA-1500 be the same as the KPA500 in terms of ease of use and interface, solid state, QSK switching, etc. Some of my points: Some have said "at least 1000W". In my opinion, that is not a big enough step above the KPA500, but some will make the case that 1500 isn't

Re: [Elecraft] Linear thoughts

Besides the usual things nearly every other hi-end linear has: - tuner built-in as an option - really light weight - at least 90% efficiency - one, max 2 antenna ports (these fit into the portable rig philosophy of Elecraft) 73 Arie PA3A

Re: [Elecraft] Linear thoughts

I think the FCC is going to change the rules on the gain factor, hopefully soon. 1500w out on RTTY with zero limitations on duty cycle or very little limitation. Very quiet cooling. 6m would be nice but probably an issue at that power. Price is probably the biggest what if. No tune

Re: [Elecraft] Linear thoughts

Eric, That's easy, #1 requirement should be spectral purity at full smoke. So simply take the features and functions of the KPA500 and increase output to 1500W PEP. I'd not like to see Elecraft waste their time with an Spurious/IMD spec that only just pass the FCC requirements, it's about time

Re: [Elecraft] [Elecraft) Linear thoughts

4rk...@gmail.com> Sent: Tuesday, March 21, 2017 10:45 AM To: Elecraft<mailto:elecraft@mailman.qth.net> Subject: [Elecraft] [Elecraft) Linear thoughts Christopher, Kinda takes the fun out of "operating". Jim - W4RKS - >+1. Wish I never had to touch the buttons or l

[Elecraft] Linear thoughts

Christopher, Kinda takes the fun out of "operating". Jim - W4RKS - > "+1. Wish I never had to touch the buttons or look at the displays on my KPA500 or KAT500 ever." - >On Sun, Mar 19, 2017 at 1:49 AM, Erik Basilier

[Elecraft] [Elecraft) Linear thoughts

Christopher, Kinda takes the fun out of "operating". Jim - W4RKS - >+1. Wish I never had to touch the buttons or look at the displays on my KPA500 or KAT500 ever. >On Sun, Mar 19, 2017 at 1:49 AM, Erik Basilier > wrote: >* Now

Re: [Elecraft] Linear thoughts

+1. Wish I never had to touch the buttons or look at the displays on my KPA500 or KAT500 ever. On Sun, Mar 19, 2017 at 1:49 AM, Erik Basilier wrote: > Now I have the KPA500 and KAT500 actually up and running for the first > time. > I am very happy with my purchase, and

Re: [Elecraft] Linear thoughts

Getting back to Eric's original question, I suggest that the main appeal of the KPA500 is its easy interoperability with the Elecraft product line, and that this should be the baseline feature for a new high powered amp. Yes the KPA500 can be used very easily with other transceivers, but it's

Re: [Elecraft] Linear thoughts

Now I have the KPA500 and KAT500 actually up and running for the first time. I am very happy with my purchase, and the combo is better integrated than anything else I have used. By integrated, I mean the boxes work together well. The fact that they are separate boxes, that I could purchase at

Re: [Elecraft] Linear thoughts

George, My Harris Platinum-1 (ch. 2 TV) linear runs 1000w output for 11w drive which is 19.6 dB gain. But this is on 6m which I do not believe is restricted to 15-dB gain by the FCC. My understanding that this rule just affected HF amplifiers. In any case it is legally built under FCC

Re: [Elecraft] Linear thoughts

I don't know how to do it with ONE press of a switch, but there is a cheaper way to change bands on the K3/K3S with two. 73, Scott K9MA On 3/18/2017 22:00, Wes Stewart wrote: I just bought one to use as a bandswitch:-) On 3/18/2017 12:04 PM, Ron D'Eau Claire wrote: Hitting the band switch

Re: [Elecraft] Linear thoughts

I just bought one to use as a bandswitch:-) On 3/18/2017 12:04 PM, Ron D'Eau Claire wrote: Hitting the band switch on the KPA500 is a quick way to avoid cycling through the bands sequentially on the K3. 73, Ron AC7AC __ Elecraft

Re: [Elecraft] Linear thoughts

mailman.qth.net> Subject: RE: [Elecraft] Linear thoughts Are you going to nx1p.net? I don't see anything unusual here. Ken K6MR From: Bill Johnson<mailto:k9...@live.com> Sent: Saturday, March 18, 2017 5:05 PM To: KV5J<mailto:nela...@yahoo.com>; KV5J via Elecraft<mailto:elec

Re: [Elecraft] Linear thoughts

Her website. Her copywrited paper is also available at: http://www.oz6hq.dk/userfiles/downloads/kpa500%20mods.pdf Shows details about her modification to add 2.5 db gain by eliminating the input attenuator and modifying the sensor circuit to keep the protection circuit - protecting. Elecraft

Re: [Elecraft] Linear thoughts

Are you going to nx1p.net? I don’t see anything unusual here. Ken K6MR From: Bill Johnson<mailto:k9...@live.com> Sent: Saturday, March 18, 2017 5:05 PM To: KV5J<mailto:nela...@yahoo.com>; KV5J via Elecraft<mailto:elecraft@mailman.qth.net> Subject: Re: [Elecraft] Linear tho

Re: [Elecraft] Linear thoughts

lman.qth.net Subject: Re: [Elecraft] Linear thoughts I signed up on NX1P web site and tried to log in and a pop up said I was black listed while logging in. I think I'll stay way also. Keith -- View this message in context: http://elecraft.365791.n2.nabble.com/Linear-thoughts-tp7628069p7628254.ht

Re: [Elecraft] Linear thoughts

I signed up on NX1P web site and tried to log in and a pop up said I was black listed while logging in. I think I'll stay way also. Keith -- View this message in context: http://elecraft.365791.n2.nabble.com/Linear-thoughts-tp7628069p7628254.html Sent from the Elecraft mailing list archive at

Re: [Elecraft] Linear thoughts

al Message- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Ken K6MR Sent: Saturday, March 18, 2017 2:09 PM To: Dan Baker <km...@km6cq.com>; elecraft@mailman.qth.net Subject: Re: [Elecraft] Linear thoughts Check out the web page of NX1P. Reasonably simple mods to add a few

Re: [Elecraft] Linear thoughts

I'm totally with these suggestions. A separate power supply that can be positioned away from the operating desk would be, IMO, very desirable. An internal tuner option sounds nice. But may be difficult as the components for 1500 watts get kind of big. I think it would be very desirable,

Re: [Elecraft] Linear thoughts

The only controls I ever touch on the KPA500 are the ON and the oper/stby. -- Many of life's problems can be solved by simply deciding what we can do without. - John Dolan __ Elecraft mailing list Home:

Re: [Elecraft] Linear thoughts

In every way exactly like the KPA500 but 1500 out - full key-down. Doug -- K0DXV On 3/17/2017 11:06 AM, Eric Swartz - WA6HHQ, Elecraft wrote: Interesting discussion. Folks, if we did introduce a 1500 W solid state amp similar to our KPA500 in operation, what features etc would be important?

Re: [Elecraft] Linear thoughts

on and off. John KK9A -Original Message- From: Ron D'Eau Claire [mailto:r...@cobi.biz] Sent: Saturday, March 18, 2017 3:04 PM To: j...@kk9a.com; elecraft@mailman.qth.net Subject: RE: [Elecraft] Linear thoughts Hitting the band switch on the KPA500 is a quick way to avoid cycling through

Re: [Elecraft] Linear thoughts

All of them. It's not a question of assigning a "value" to each button to determine which is more important to be visible. Those choices will vary with user anyway. Some users like the band buttons on the KPA500 to change bands on their K-Line. When operating, I can distract myself from DXing

Re: [Elecraft] Linear thoughts

; Sent: Saturday, March 18, 2017 9:32 AM To: elecraft@mailman.qth.net<mailto:elecraft@mailman.qth.net> Subject: Re: [Elecraft] Linear thoughts It would be very nice to have the ability to make a unauthorized, unofficial simple mod. Maybe call it the KX3 mod. This mod would allow one to d

Re: [Elecraft] Linear thoughts

@mailman.qth.net Subject: [Elecraft] Linear thoughts What buttons are you using besides ON and maybe OPER/STBY? John KK9A From: Ed Muns ed at w0yk.com Sat Mar 18 14:25:12 EDT 2017 Based on the excellent KPA500 design, augmented by user experience, and the added comments to Eric's question below, I'm

[Elecraft] Linear thoughts

What buttons are you using besides ON and maybe OPER/STBY? John KK9A From: Ed Muns ed at w0yk.com Sat Mar 18 14:25:12 EDT 2017 Based on the excellent KPA500 design, augmented by user experience, and the added comments to Eric's question below, I'm confident Elecraft can define another great

Re: [Elecraft] Linear thoughts

Based on the excellent KPA500 design, augmented by user experience, and the added comments to Eric's question below, I'm confident Elecraft can define another great product if they so choose. My request is that the button colors be more functional than they are on the KPA500. "Black on Black" is

Re: [Elecraft] Linear thoughts

Has the rule limiting gain to 15dB been changed or rescinded by the FCC yet? Do you expect Elecraft to provide such a "mod" before the rule has changed? Snickerand cover it under warranty? On 3/18/2017 12:01 PM, Gmail - George wrote: I agree Dan, Make a modification kit available to

Re: [Elecraft] Linear thoughts

I agree Dan, Make a modification kit available to licensed operators and blessed by Elecraft. Kit of parts w/pc board would be ok by me. Maybe one with 2 inputs - one for K3 (100 watt rigs) and another for KX2 or KX3 (QRP) rigs. Seems wasteful to feed the KPA500 with a KX3 + KPX100 to the input

Re: [Elecraft] Linear thoughts

It would be very nice to have the ability to make a unauthorized, unofficial simple mod. Maybe call it the KX3 mod. This mod would allow one to drive the amp to full output with a KX2 or KX3. Dan KM6CQ __ Elecraft mailing list Home:

Re: [Elecraft] Linear thoughts

This is relevant. The original ACOM2000 and ACOM antenna switch had to be used over a "network" for integration with the 2000. The "network" was an unusual one that many people tried to write software to access without success. There were all kinds of issues. It ended up being unusable.

Re: [Elecraft] Linear thoughts

I forgot that the KPA500 and K3s are the same size. Point remains KPA1500AT won't fit in the KPA500/K3s box. On 3/18/2017 9:57 AM, Kevin wrote: I hate to interrupt the group fantasy but, No way a "1500W key down forever any mode" solid state amp is going to be quiet, affordable, or fit in

Re: [Elecraft] Linear thoughts

The capability of switching ATU settings for different antennas, on the same band, with or without also switching output jacks. Control via simple logic signals, not only via serial commands and software. Alternately, provide a stand-alone accessory box which could respond to logic signals

Re: [Elecraft] Linear thoughts

[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Eric Swartz - WA6HHQ, Elecraft Sent: Friday, March 17, 2017 1:07 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] Linear thoughts Interesting discussion. Folks, if we did introduce a 1500 W solid state amp similar to our KPA500 in operation

Re: [Elecraft] Linear Thoughts

dm780 (buddy s) > 14. Re: Linear thoughts (Chris Tate - N6WM) > 15. Re: Preamp 2 and upcoming F/W (Wayne Burdick) > 16. Re: Linear thoughts (Mitch) > 17. OT: RFI problem on 80,40 with AT Uverse (John Saxon) > 18. Re: (Elecraft) Linear thoughts (Thomas Donohue) > 19. Re: OT: RFI

Re: [Elecraft] Linear thoughts on pricing

one pricing advantage Elecraft has over the flex... no need to have the importer ( Flex) & the Manufacturer (Ranko 403A) in Montenegro both making a profit 1. connectivity for predistortion 2. trade in allowancefor my ACOMhih bill

Re: [Elecraft] Linear thoughts

A box which has a combiner for using two KPA500’s in unison plus pre-distortion. Dale, K9VUJ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post:

Re: [Elecraft] Linear thoughts

You haven't been paying attention. I asked for both of those. On 3/17/2017 5:20 PM, Gary K9GS wrote: A lot of great suggestions but two I have not seen discussed: 1) I really like the idea of a separate power supply simply because if the amp has to ever go in for service or be shipped it is

Re: [Elecraft] Linear thoughts

and I didn't mention price because I really don't care. Not that I'm loaded but I know that what I'm asking for isn't cheap. But I've always found Elecraft to be excellent value for the money. nuff said. jim ab3cv On Fri, Mar 17, 2017 at 10:19 PM, Jim Miller wrote: > Forgot

Re: [Elecraft] Linear thoughts

Forgot to mention: I hate the fan noise of the ACOM1500. KPA1500 should emulate the KPA500, noise only when necessary! On Fri, Mar 17, 2017 at 9:56 PM, Jim Miller wrote: > TLDR version: Basically I want a full legal limit key down version of the > KPA500 and a companion ala

Re: [Elecraft] Linear thoughts

should help reduce per-unit cost. 73, Erik K7TV -Original Message- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of w7aqk Sent: Friday, March 17, 2017 6:59 PM To: Elecraft Reflector <elecraft@mailman.qth.net> Subject: Re: [Elecraft] Linear thoughts Hi All, I don't

Re: [Elecraft] Linear thoughts

I've had pretty good success with the KPA500, but since you asked, another couple S units is always better than less. If you don't need 1500 out, dial it back. You can't push a smaller amp up, but you can throttle a large amp down... there if you need it. Matching automatic tuner with the

Re: [Elecraft] Linear thoughts

Hi All, I don't really have an oar in this debate, since I am 99.99% sure I won't be buying one--a 1500 watt linear, that is. However, it seems to me that all this advice to Eric should include some reasonable estimate of what one would be willing to pay for it!!! So far, I think I've only

Re: [Elecraft] Linear thoughts

TLDR version: Basically I want a full legal limit key down version of the KPA500 and a companion ala KAT1500 Details: I recently purchased a ACOM1500 while biding my time for a KPA1500. (I already have a KPA500 and really like it.) Things I don't like about this tube amp:: 1. Tuning 2. Waiting

Re: [Elecraft] Linear thoughts

- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Erik Basilier Sent: Friday, March 17, 2017 3:00 PM To: Elecraft@mailman.qth.net Subject: [Elecraft] Linear thoughts To make this an Elecraft amp, it should be designed based on the best architectural ideas from the Elecraft trad

[Elecraft] Linear thoughts

I'm gonna quote a previous poster: "...Needless to say, full perfect QSK at 110 WPM, zero IMD, and be able to eliminate TX phase noise if used with some notable non-Elecraft transmitters. An LCD display for a trapezoid pattern to assure linearity would be a plus but not essential since it's

[Elecraft] Linear thoughts

Same size box as the KPA500, with the internal switching supply. It could actually weigh less than the KPA500. This would be an achievement that would be unique to Elecraft and desirable. The tuner would be in an external box, same width and depth as the amp. If it could be done for twice the

Re: [Elecraft] Linear thoughts

A lot of great suggestions but two I have not seen discussed: 1) I really like the idea of a separate power supply simply because if the amp has to ever go in for service or be shipped it is a lot easier without a heavy power supply inside the cabinet. Just send the RF deck to Elecraft. 2)

Re: [Elecraft] Linear thoughts

Speaking as someone who has never operated above 100W, in other words -- I don't know what I really want: 100% duty cycle for RTTY, FM etc. Make it possible to have the big, bulky, noisy items separable from the control head. Make it possible to locate the amp (& tuner) near the

Re: [Elecraft] Linear thoughts

The "KPA1500" should look, feel, and behave like a KPA500. OK, it can weigh a little more but should be liftable by your average age ham [oldish]. If you want to sell it widely, the "KAT1500" will also be needed since there are a whole bunch of folks who have less than monoband stacks on all

Re: [Elecraft] Linear thoughts

> -Original Message- > From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of > Peter LaBissoniere > Sent: Friday, March 17, 2017 1:02 PM > To: Eric Swartz - WA6HHQ, Elecraft <e...@elecraft.com<mailto:eric > @elecraft.com>> > Cc: elecraft@mailman

Re: [Elecraft] Linear thoughts

t;e...@elecraft.com<mailto:e...@elecraft.com>> Cc: elecraft@mailman.qth.net<mailto:elecraft@mailman.qth.net> Subject: Re: [Elecraft] Linear thoughts KPA-500 trade-in program. Sent from my iPhone On Mar 17, 2017, at 12:06 PM, Eric Swartz - WA6HHQ, Elecraft <e...@elecraft.com<mailto

Re: [Elecraft] Linear thoughts

On Fri,3/17/2017 10:06 AM, Eric Swartz - WA6HHQ, Elecraft wrote: Folks, if we did introduce a 1500 W solid state amp similar to our KPA500 in operation, what features etc would be important? Full break-in, as clean as a good tube amp, legal limit through 6M with 50% duty cycle (to support

Re: [Elecraft] Linear thoughts

boun...@mailman.qth.net] On Behalf Of Peter LaBissoniere Sent: Friday, March 17, 2017 1:02 PM To: Eric Swartz - WA6HHQ, Elecraft <e...@elecraft.com> Cc: elecraft@mailman.qth.net Subject: Re: [Elecraft] Linear thoughts KPA-500 trade-in program. Sent from my iPhone > On Mar 17, 2017, at 1

[Elecraft] Linear thoughts

To make this an Elecraft amp, it should be designed based on the best architectural ideas from the Elecraft tradition. At this point of the evolution, this must be seen at the system level, including the (never-to-be ?) "K4" and all other "K-line" components. Why such a broad scope? The

[Elecraft] Linear thoughts

, March 17, 2017 10:06 AM To: elecraft at mailman.qth.net Subject: Re: [Elecraft] Linear thoughts Interesting discussion. Folks, if we did introduce a 1500 W solid state amp similar to our KPA500 in operation, what features etc would be important? 73, Eric /elecraft.com

Re: [Elecraft] Linear thoughts

I second that! Plus trade in for my KPA500 and KAT500. K8NU > On Mar 17, 2017, at 3:54 PM, Bert Garcia N8NN wrote: > > My wish list for a 1500 watt Elecraft linear: > > Separate power supply so I can lift it one piece at a time. > Light weight power supply. > Wide-range

Re: [Elecraft] Linear thoughts

If you develop a internal or external tuner for it, please include a lock switch. This would allow the tuning solution to be locked in place unlike the KAT500 manual switch. Thanks,Dan -- KM6CQ Dan Baker www.km6cq.com Don't sacrifice your hobby for the right house.

Re: [Elecraft] Linear thoughts

Eric (Wayne): I'm not a potential customer (price/advantage ratio too high for my casual HF usage). But having 1200-1500 at 6m would see a potential market in the 6m-eme community for those with ability to pay. 6m-eme is increasing quickly in light of low solar cycles being projected (how

Re: [Elecraft] Linear thoughts

I'm firmly in the component or modular engineering camp. All things equal, less integration of function trumps integration if its a choice. The other guys have already hit on most of the big items... Here's what is important to me. 1500+W (Prefer something built to 2-3K Watts capable and then

Re: [Elecraft] Linear thoughts

Swartz - WA6HHQ, Elecraft Sent: Friday, March 17, 2017 1:07 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] Linear thoughts Interesting discussion. Folks, if we did introduce a 1500 W solid state amp similar to our KPA500 in operation, what features etc would be important? 73, Eric

Re: [Elecraft] Linear thoughts

The imaginary transceiver to match the imaginary amplifier. On 3/17/2017 11:21 AM, Wayne Burdick wrote: On Mar 17, 2017, at 11:14 AM, Wes Stewart wrote: Three times the power, one-third the cost? Somewhat more seriously: legal limit, internal tuner for up to at least

Re: [Elecraft] Linear thoughts

Dear Eric, IF Elecraft was to introduce a 1500W amp, I would love it to interface as well as the KPA500 does now. If I could have anything additional, my first choice would be to have a tuner inside the box, that can either be used or bypassed as necessary. The ability to be run on either 110V

Re: [Elecraft] Linear thoughts

] On Behalf Of Eric Swartz - WA6HHQ, Elecraft Sent: Friday, March 17, 2017 1:07 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] Linear thoughts Interesting discussion. Folks, if we did introduce a 1500 W solid state amp similar to our KPA500 in operation, what features etc would be important? 73

Re: [Elecraft] Linear thoughts

voltage selection on power supply. Bert N8NN -Original Message- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Eric Swartz - WA6HHQ, Elecraft Sent: Friday, March 17, 2017 1:07 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] Linear thoughts Interesting

Re: [Elecraft] (Elecraft) Linear thoughts

Hi to all: I had the strong suspicion based on what I heard an Elecraft rep say at last years Dayton Hamvention that a 1500W linear was being worked on; so, I was not surprised by Eric's request. My input is as follows: (1) 1500W+ output, key down; (2) light weight (30 lbs or less); if the

Re: [Elecraft] Linear thoughts

Hi Eric, Thanks for opening up this can of worms ;-) I haven't been following the discussion until now, but my suggestion comes from another angle: make any new amplifier very remotable. This means the following: - Have API's that support complete remote control, also available to other

Re: [Elecraft] Linear thoughts

, 2017 11:21 AM To: Wes Stewart Cc: elecraft@mailman.qth.net Subject: Re: [Elecraft] Linear thoughts On Mar 17, 2017, at 11:14 AM, Wes Stewart <wes_n...@triconet.org> wrote: > Three times the power, one-third the cost? > > Somewhat more seriously: legal limit, internal tuner for up

Re: [Elecraft] Linear thoughts

On Fri, Mar 17, 2017 at 2:21 PM, Wayne Burdick wrote: > The what? K4. Whatever the K3x finally evolves to, plus a front-end that does brainwave interpretation by a combination brainwave detector, microphone, headphone, computer display, eye reading device that looks like an

[Elecraft] Linear thoughts

Hhhhmmm... 1000W minimum. Excellent performance. Clean signal. Easy interconnection with K3 (or K4.) Reasonable weight and form factor (power supply in second box would be OK.) Auto-tuner rated for output and reasonable SWR. Antenna selection for at least 4 antennas. Not as expensive as the

Re: [Elecraft] Linear thoughts

On Fri, Mar 17, 2017 at 2:21 PM, Wayne Burdick wrote: > ​T​ > he what? ​He said K4. :) ​ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post:

Re: [Elecraft] Linear thoughts

My thoughts in order of importance to me: 1) 1500 W continuous duty - 100% clean signal. 2) 160 - 6 M 3) QSK - no relays 4) 1 package - no separate power supply 5) Lightweight (this is relative of course) 6) Remotely controllable 7) Internal tuner not required 73, Bud N7CW On Fri, Mar 17, 2017

Re: [Elecraft] Linear thoughts

On Mar 17, 2017, at 11:14 AM, Wes Stewart wrote: > Three times the power, one-third the cost? > > Somewhat more seriously: legal limit, internal tuner for up to at least 3:1 > SWR (option?), optional separate power supply, quieter cooling. Bigger box to > match K4.

Re: [Elecraft] Linear thoughts

Three times the power, one-third the cost? Somewhat more seriously: legal limit, internal tuner for up to at least 3:1 SWR (option?), optional separate power supply, quieter cooling. Bigger box to match K4. Wes N7WS On 3/17/2017 10:06 AM, Eric Swartz - WA6HHQ, Elecraft wrote: Interesting

Re: [Elecraft] Linear thoughts

1. Separate power supply or small control box (ala ACOM 2000A). Same form factor as K line if separate power supply (small control box able to control an integral or separate "KAT1500" as well). 2. Solid state. 3. Full integration with K line similar to KPA500 and easy integration with

Re: [Elecraft] Linear thoughts

>box. 1200-1300 watts would be a sweet spot if 1.5K is a problem. Shoot >for >30 pounds or under. >73, andy ae6y (KPA500 ser. 77). > >-Original Message- >From: Eric Swartz - WA6HHQ, Elecraft >Sent: Friday, March 17, 2017 10:06 AM >To: elecraft@mailman.qth.net &

Re: [Elecraft] Linear thoughts

KPA-500 trade-in program. Sent from my iPhone > On Mar 17, 2017, at 12:06 PM, Eric Swartz - WA6HHQ, Elecraft > wrote: > > Interesting discussion. > > Folks, if we did introduce a 1500 W solid state amp similar to our KPA500 in > operation, what features etc would be

Re: [Elecraft] Linear thoughts

Also, same facilities as KPA500 and built in KAT1500 tuner. 73, Alan. G4GNX -Original Message- From: Gerald Manthey Sent: Friday, March 17, 2017 5:24 PM To: Eric Swartz - WA6HHQ, Elecraft Cc: elecraft@mailman.qth.net Subject: Re: [Elecraft] Linear thoughts Super quiet fans! Full

Re: [Elecraft] Linear thoughts

ecraft@mailman.qth.net<mailto:elecraft@mailman.qth.net>; Eric Swartz - WA6HHQ, Elecraft<mailto:e...@elecraft.com> Subject: Re: [Elecraft] Linear thoughts Eric, Hallelujah! First acknowledgment of such a possibility! I vote to put a second amp module in the RF Deck (i.e., an RF dec

Re: [Elecraft] Linear thoughts

KPA1500? QSK. Bombproof. IF possible, amp only in K3 form factor, separate power supply regulated with sense line from the amplifier module. KAT1500 with ability to place it remotely, able to place KAT1500 control buttons in an otherwise blank spot on KPA1500 front panel. KAT1500 with memory per

Re: [Elecraft] Linear thoughts

Super quiet fans! Full duty cycle. > On Mar 17, 2017, at 12:06 PM, Eric Swartz - WA6HHQ, Elecraft > wrote: > > Interesting discussion. > > Folks, if we did introduce a 1500 W solid state amp similar to our KPA500 in > operation, what features etc would be important? > >

Re: [Elecraft] Linear thoughts

: [Elecraft] Linear thoughts Interesting discussion. Folks, if we did introduce a 1500 W solid state amp similar to our KPA500 in operation, what features etc would be important? 73, Eric /elecraft.com/ __ Elecraft mailing list Home: http

Re: [Elecraft] Linear thoughts

. Shoot for 30 pounds or under. 73, andy ae6y (KPA500 ser. 77). -Original Message- From: Eric Swartz - WA6HHQ, Elecraft Sent: Friday, March 17, 2017 10:06 AM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] Linear thoughts Interesting discussion. Folks, if we did introduce a 1500 W

Re: [Elecraft] Linear thoughts

__ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list:

Re: [Elecraft] Linear thoughts

This debate seems to get resurrected a lot. I think the reason for that is more philosophical than technical. Clearly 1 KW is better than 500 watts, at least in many cases. The question really is, do you actually need it, and can you make that leap practically. Answers to those questions

Re: [Elecraft] Linear thoughts

Interesting discussion. Folks, if we did introduce a 1500 W solid state amp similar to our KPA500 in operation, what features etc would be important? 73, Eric /elecraft.com/ __ Elecraft mailing list Home:

Re: [Elecraft] Linear thoughts

To: elecraft@mailman.qth.net Subject: [Elecraft] Linear thoughts I still have not seen the Genius pricing. I'm not sure what ever happened to the Acom 1200S. Many people use the SPE 1.3KW on expeditions, I wonder how easy it is to hook it up to the K3S. The KPA-500 works nicely with the K3S but giving

Re: [Elecraft] Linear thoughts

17 2:27 PM > To: Elecraft@mailman.qth.net > Subject: [Elecraft] Linear thoughts > > I recently sold my legal limit tube amp after a bit of a mental struggle. > The seller in me finally won after I realized that "if I can't lift it, I > shouldn't own it". I was tempted to repla

Re: [Elecraft] Linear thoughts

I have a 2K-FA and as Jim mentions, you can use the bare basic RCA cable to key it etc... however, depending on your setup, it's certainly easy to make up some custom cables Get some CAT5 stranded cable and read the manuals (RTFM). The CAT control input on all the SPE amps have the same pinout

Re: [Elecraft] Linear thoughts

: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Bill Johnson Sent: Thursday, March 16, 2017 3:38 PM To: Charlie T, K3ICH; elecraft@mailman.qth.net Subject: Re: [Elecraft] Linear thoughts Charlie, I think one of the main reasons for switching to a smaller amp was the weigh

Re: [Elecraft] Linear thoughts

On Thu,3/16/2017 8:36 PM, James F. Boehner MD via Elecraft wrote: Expert Linears Dan Tassell KC5PCB makes up a custom plug-and-play cable for the K3/SPE, so interfacing is really not a problem. NO special cable is required. All you need is the RCA - RCA keying cable between the K3 and the

Re: [Elecraft] Linear thoughts

I bought a 1K used from a friend. It's usability is ok, but he's had it fixed a couple of times and my measurements show that it's not a very clean amp. I've heard that the 1.3K is pretty dirty. The primary virtue of the 1.3K is its very light weight, so it's great to take on an airplane. I

Re: [Elecraft] Linear thoughts

; elecraft@mailman.qth.net Subject: [Elecraft] Linear thoughts Just as an FYI, Expert Linears Dan Tassell KC5PCB makes up a custom plug-and-play cable for the K3/SPE, so interfacing is really not a problem. ’73 de JIM N2ZZ -Original Message- From: Elecraft [mailto:elecraft-boun

Re: [Elecraft] Linear thoughts

KPA1000 is pretty easy to do with a bit of hardware… :^) Ken K6MR From: j...@kk9a.com<mailto:j...@kk9a.com> Sent: Thursday, March 16, 2017 6:42 PM To: elecraft@mailman.qth.net<mailto:elecraft@mailman.qth.net> Subject: [Elecraft] Linear thoughts I still have not seen the Genius

[Elecraft] Linear thoughts

, 2017 10:25 PM To: j...@kk9a.com; elecraft@mailman.qth.net Subject: Re: [Elecraft] Linear thoughts At Orlando the introductory price for the Genius was $6999.00 and they were taking orders for. I think, June delivery. They just received the FCC type acceptance a few days before. I would assume

Re: [Elecraft] Linear thoughts

17 3:38 PM To: Charlie T, K3ICH; elecraft@mailman.qth.net Subject: Re: [Elecraft] Linear thoughts Charlie, I think one of the main reasons for switching to a smaller amp was the weight involved in the 1.5Kw rigs. Just thought I would add back in. The MJF AB1000 combiner looks interesting, but I would

Re: [Elecraft] Linear thoughts

CW it was like having a 1.5K K3..just hummed along all weekend.  73-Gary K9GS  Original message From: j...@kk9a.com Date: 3/16/17 8:36 PM (GMT-06:00) To: elecraft@mailman.qth.net Subject: [Elecraft]  Linear thoughts I still have not seen the Genius pricing. I'm not sure

[Elecraft] Linear thoughts

I still have not seen the Genius pricing. I'm not sure what ever happened to the Acom 1200S. Many people use the SPE 1.3KW on expeditions, I wonder how easy it is to hook it up to the K3S. The KPA-500 works nicely with the K3S but giving up 4.5dBs is considerable, a KPA-1000 would be hard to

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