Barebone K2 Amplifier?
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Are there any 50 or 100 watt external amplifiers,
that a barebone QRP K2 can drive? Is anyone using one, for SSB and CW? Itch'n to build nother ........... Thanks, Fred N3CSY K2 54xx, 6/06 ____________________________________________________________________________________ Cheap talk? Check out Yahoo! Messenger's low PC-to-Phone call rates. http://voice.yahoo.com _______________________________________________ Elecraft mailing list Post to: [hidden email] 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 |
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Long ago Ten-Tec made a model 405 amplifier. It could take 5 watts in
and produce 50 watts out. There are also some Tokyo Highpower amps around that people have bought directly from Japan. You could also arrange to buy one directly from the company. They technically aren't legal because the FCC has restrictions on input power, bands and gain to (unsuccessfully) prevent CB operators from running more than 4 watts output. Otherwise, there are plans and boards to build a 140 watt amp that would be quite suitable. I also believe it is possible to make the KPA100 an external amplifier. I've used a number of these and in my book if you want 100 watts - buy the KPA100. I built one of the first and it was a gem. 73, Doug -- KØDXV Fred (FL) wrote: > Are there any 50 or 100 watt external amplifiers, > that a barebone QRP K2 can drive? Is anyone > using one, for SSB and CW? > > Itch'n to build nother ........... > > Thanks, > Fred N3CSY > K2 54xx, 6/06 > > > > ____________________________________________________________________________________ > Cheap talk? > Check out Yahoo! Messenger's low PC-to-Phone call rates. > http://voice.yahoo.com > _______________________________________________ > Elecraft mailing list > Post to: [hidden email] > 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: [hidden email] 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 |
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In reply to this post by Fred (FL)
Why not build the KPA100 and put it in an EC2 to make it outboard??? You'll
really be happy! -----Original Message----- From: [hidden email] [mailto:[hidden email]] On Behalf Of Fred (FL) Sent: Thursday, December 07, 2006 4:23 PM To: [hidden email] Subject: [Elecraft] Barebone K2 Amplifier? Are there any 50 or 100 watt external amplifiers, that a barebone QRP K2 can drive? Is anyone using one, for SSB and CW? Itch'n to build nother ........... Thanks, Fred N3CSY K2 54xx, 6/06 ____________________________________________________________________________ ________ Cheap talk? Check out Yahoo! Messenger's low PC-to-Phone call rates. http://voice.yahoo.com _______________________________________________ Elecraft mailing list Post to: [hidden email] 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: [hidden email] 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 |
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In reply to this post by Fred (FL)
On Dec 7, 2006, at 2:23 PM, Fred (FL) wrote: > Are there any 50 or 100 watt external amplifiers, > that a barebone QRP K2 can drive? Is anyone > using one, for SSB and CW? > > Itch'n to build nother ........... > Under the current FCC rules, an external amplifier cannot be driven to its rated output win an input of less than 50 watts. Additionally it cannot have more than 15 dB gain. Under the changes that take effect on December 15, the 50 watt restriction is removed, although the 15 dB gain limit is retained (don't ask me why). The KPA-100 isn't subject to the 50 watt rule, because it is designed to be integrated with the K2 as a single unit. It can be operated separately (usually á la <http://www.kk7p.com/k2kpa100.html> but this is considered a modification by the amateur, which is permitted). I expect that after the new rule becomes effective, there may be other amplifiers on the market suitable for use with a K2 or other QRP rigs (some exist now, but their legality is doubtful). The rules prohibit an amp which can easily be modified to transmit between 26 and 28 MHz, but don't say anything about modification to increase the gain, which I think in some cases might be done by removing an attenuator). Since the K2's rated output is 15 W, an amp with 15 dB of gain would have an output of 474 watts, so this wouldn't apply in the case of 100 watt rig designed to be driven by 3.16 watts or less. If you want an amp which will operate on 12 and 10 meters, it becomes a bit difficult even under the new rules, since high-power filters with steep skirts are rather impractical (rejection from 26 to 28.000, no loss at 28.001 is physically impossible). The KPA100 uses a digital signal from the K2 to know what frequency is being amplified, but another amp might require the use of a KIO2 to provide similar information (not quite bare bones). Bob, N7XY _______________________________________________ Elecraft mailing list Post to: [hidden email] 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: Barebone K2 Amplifier?
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In reply to this post by Fred (FL)
See http://hfprojects.com.
Leigh/WA5ZNU On Thu, 7 Dec 2006 2:23 pm, Fred (FL) wrote: > Are there any 50 or 100 watt external amplifiers, > that a barebone QRP K2 can drive? Is anyone > using one, for SSB and CW? _______________________________________________ Elecraft mailing list Post to: [hidden email] 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 |
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In reply to this post by Fred (FL)
You might want to check this one out.
http://www.hfprojects.com/hfprojects/ Bob -----Original Message----- From: [hidden email] [mailto:[hidden email]]On Behalf Of Fred (FL) Sent: Thursday, December 07, 2006 2:23 PM To: [hidden email] Subject: [Elecraft] Barebone K2 Amplifier? Are there any 50 or 100 watt external amplifiers, that a barebone QRP K2 can drive? Is anyone using one, for SSB and CW? Itch'n to build nother ........... Thanks, Fred N3CSY K2 54xx, 6/06 ____________________________________________________________________________ ________ Cheap talk? Check out Yahoo! Messenger's low PC-to-Phone call rates. http://voice.yahoo.com _______________________________________________ Elecraft mailing list Post to: [hidden email] 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: [hidden email] 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 |
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In reply to this post by Fred (FL)
I am currently building one using a Communication-Concepts AN762 amplifier
kit, and using The band pass filter board from hfprojects. I built a case out of PC Boards, and am currently wiring It up. I need to take some pictures, and can make them available as it goes. Mike AI4NS -----Original Message----- From: [hidden email] [mailto:[hidden email]] On Behalf Of Fred (FL) Sent: Thursday, December 07, 2006 4:23 PM To: [hidden email] Subject: [Elecraft] Barebone K2 Amplifier? Are there any 50 or 100 watt external amplifiers, that a barebone QRP K2 can drive? Is anyone using one, for SSB and CW? Itch'n to build nother ........... Thanks, Fred N3CSY K2 54xx, 6/06 ____________________________________________________________________________ ________ Cheap talk? Check out Yahoo! Messenger's low PC-to-Phone call rates. http://voice.yahoo.com _______________________________________________ Elecraft mailing list Post to: [hidden email] 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: [hidden email] 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 |
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What is the current total cost (parts + shipping, US$) of the
combination of the AN762 and the band pass filter board, including the case and fitting? I wanted to make a cost comparison between that plus an auto-tuner vs the KPA100 which I understand incorporates a tuner. (I think the amp is a 140 watt jobbie?) Thanks. -Dave VE7HP On Thu, Dec 07, 2006 at 05:33:14PM -0600, Mike Short wrote: > I am currently building one using a Communication-Concepts AN762 amplifier > kit, and using > The band pass filter board from hfprojects. I built a case out of PC Boards, > and am currently wiring > It up. I need to take some pictures, and can make them available as it goes. > > Mike > AI4NS > > -----Original Message----- > From: [hidden email] > [mailto:[hidden email]] On Behalf Of Fred (FL) > Sent: Thursday, December 07, 2006 4:23 PM > To: [hidden email] > Subject: [Elecraft] Barebone K2 Amplifier? > > Are there any 50 or 100 watt external amplifiers, > that a barebone QRP K2 can drive? Is anyone > using one, for SSB and CW? > > Itch'n to build nother ........... > > Thanks, > Fred N3CSY > K2 54xx, 6/06 > > > > ____________________________________________________________________________ > ________ > Cheap talk? > Check out Yahoo! Messenger's low PC-to-Phone call rates. > http://voice.yahoo.com > _______________________________________________ > Elecraft mailing list > Post to: [hidden email] > 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: [hidden email] > 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 -- David Dawson The greatest dangers to liberty lurk in insidious encroachment by men of zeal, well-meaning but without understanding. -- Justice Louis D. Brandeis _______________________________________________ Elecraft mailing list Post to: [hidden email] 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 |
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In reply to this post by Fred (FL)
Fred,
Elecraft has the KPA100 which offers automatic bandswitching and a lot of other features. It can be driven by the barebones K2 quite nicely. Add an EC2 enclosure and you can have the KPA100 external and still with all the function of the inboard unit - your basic K2 will still be ready to 'grab and go' as a QRP transceiver. Pricewise - yes, it may seem like a lot in one 'ball of wax', but if you price the components to build any external amplifier and include the enclosure and other hardware, I believe the KPA100 price will be on a par with others. OTOH, you may wish to wait until Dec 15 when the restrictions on external amplifiers that can be driven with less than 50 watts is lifted and see what appears on the market. But I would bet that none of them will have the operating conveinence of the K2/KPA100 combination - not to mention the addition of the automatic tuner the KAT100 if one does not have resonant antennas for every band. 73, Don W3FPR > -----Original Message----- > > Are there any 50 or 100 watt external amplifiers, > that a barebone QRP K2 can drive? Is anyone > using one, for SSB and CW? > > Itch'n to build nother ........... > > Thanks, > Fred N3CSY > K2 54xx, 6/06 > No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.432 / Virus Database: 268.15.15/579 - Release Date: 12/7/2006 1:31 PM _______________________________________________ Elecraft mailing list Post to: [hidden email] 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 |
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In reply to this post by Fred (FL)
Doug, Fred, and all,
I had forgotten about the 405! But you are also correct Tokyo Highpower makes two models of amplifters, a 50 watt and a 100 watt. There was also an article in QST in the last year or two that described the type of amp Fred was looking for. Fred(FL) don't forget to check E-Bay as they frequently show up. Also subscribe to the FT-817 list on groups.yahoo.com as they are often listed. And a search of the archives will give you information on how (and whom) to contact at the factory. Yet I concur with the majority, the KPA-100 is a nicer solution, and coupled with the KAT-100 it makes for a very sweet radio. My configuration is a K-2 with all the trimmings in QRP mode, and a KPA-100/KAT-100 in an EC-2 enclosure. It affords the best of both worlds, unplug it and it is the best QRP radio of all time, and bring it back in and you have a very good 100 watt radio. If only the firmware could determine when it was connected to the KPA-100/KAT-100 or not and return control to the KAT-2. (Sorry Wayne <g>.) I dont think the KPA-100 is more expensive than a Tokyo amp either. 73, Joe N9JR ----- Original Message ---- From: Doug Person <[hidden email]> To: Fred (FL) <[hidden email]> Cc: [hidden email] Sent: Thursday, December 7, 2006 4:36:15 PM Subject: Re: [Elecraft] Barebone K2 Amplifier? Long ago Ten-Tec made a model 405 amplifier. It could take 5 watts in and produce 50 watts out. There are also some Tokyo Highpower amps around that people have bought directly from Japan. You could also arrange to buy one directly from the company. They technically aren't legal because the FCC has restrictions on input power, bands and gain to (unsuccessfully) prevent CB operators from running more than 4 watts output. Otherwise, there are plans and boards to build a 140 watt amp that would be quite suitable. I also believe it is possible to make the KPA100 an external amplifier. I've used a number of these and in my book if you want 100 watts - buy the KPA100. I built one of the first and it was a gem. 73, Doug -- KØDXV _______________________________________________ Elecraft mailing list Post to: [hidden email] 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 |
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A few years ago, after completing my first K2, I had investigated the
Tokyo Highpower amplifiers. I exchanged emails with a salesman at Tokyo Highpower and he was very cooperative. The delivered price of the 100 watt amp was about $450 shipped from Japan. Considering everything it was not a bad price. But then the KPA100 was announced and the choice was obvious. BTW my very early KPA100 went together without a hitch and worked perfectly on all bands. I operated mostly SB with it not being quite the cw op I am now. 73, Doug -- KØDXV Joseph Reed wrote: > Doug, Fred, and all, > > I had forgotten about the 405! But you are also correct Tokyo Highpower makes two models of amplifters, a 50 watt and a 100 watt. There was also an article in QST in the last year or two that described the type of amp Fred was looking for. > > Fred(FL) don't forget to check E-Bay as they frequently show up. Also subscribe to the FT-817 list on groups.yahoo.com as they are often listed. And a search of the archives will give you information on how (and whom) to contact at the factory. > > Yet I concur with the majority, the KPA-100 is a nicer solution, and coupled with the KAT-100 it makes for a very sweet radio. My configuration is a K-2 with all the trimmings in QRP mode, and a KPA-100/KAT-100 in an EC-2 enclosure. It affords the best of both worlds, unplug it and it is the best QRP radio of all time, and bring it back in and you have a very good 100 watt radio. > > If only the firmware could determine when it was connected to the KPA-100/KAT-100 or not and return control to the KAT-2. (Sorry Wayne <g>.) > > I dont think the KPA-100 is more expensive than a Tokyo amp either. > > 73, > Joe N9JR > > ----- Original Message ---- > From: Doug Person <[hidden email]> > To: Fred (FL) <[hidden email]> > Cc: [hidden email] > Sent: Thursday, December 7, 2006 4:36:15 PM > Subject: Re: [Elecraft] Barebone K2 Amplifier? > > > Long ago Ten-Tec made a model 405 amplifier. It could take 5 watts in > and produce 50 watts out. There are also some Tokyo Highpower amps > around that people have bought directly from Japan. You could also > arrange to buy one directly from the company. They technically aren't > legal because the FCC has restrictions on input power, bands and gain to > (unsuccessfully) prevent CB operators from running more than 4 watts > output. Otherwise, there are plans and boards to build a 140 watt amp > that would be quite suitable. I also believe it is possible to make the > KPA100 an external amplifier. I've used a number of these and in my > book if you want 100 watts - buy the KPA100. I built one of the first > and it was a gem. > > 73, Doug -- KØDXV > > > _______________________________________________ Elecraft mailing list Post to: [hidden email] 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 |
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Hi Group,
KPA100 is very good when it operates with K2. However, if you have other non-K2 QRP rigs, you may wish to consider other 3rd party amplifiers such as those from Tokyo High Power or HFproject. You may need an amplifier not only restricted to the operation of K2. I would think, before making any decision, you should think about your operation preference. Do you want an amplifier serving K2 solely? If you don't need the amplifier in future, can it be sold readily in the second hand market without substantial price cut? One thing I would like to share, the barebone K2 can drive a ICPW-1 or Quadra System to over 300 watts. If you have the budget for the kilowatt amplifiers in the very nearest future, you may wish to hold the purchase of a 100 watt amplifier now. BTW, I am waiting the coming of KPA800 / 1600 from Elecraft. 73 Johnny Siu VR2XMC _________________________________________________________________ 享用世界上最大的电子邮件系统― MSN Hotmail。 http://www.hotmail.com _______________________________________________ Elecraft mailing list Post to: [hidden email] 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 |
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In reply to this post by Don Wilhelm-3
As hinted to in Don's comments there is another reason for going with the
KPA-100. I love the fact that the KPA-100 has an integrated solid state T/R switch so you can run full QSK. Most of the imported amps are relay driven via the PTT line or RF sensing with a time delay and are not able to be keyed at normal keying speeds. Of course you could always buy an old B&W or Johnson tube T/R switch but now your running 3 boxes with cables etc. The KPA-100 is the "neatest" solution. - Tom K2TA K2 #1117 ----- Original Message ----- From: "Don Wilhelm" <[hidden email]> To: "Fred (FL)" <[hidden email]>; <[hidden email]> Sent: Thursday, December 07, 2006 8:37 PM Subject: RE: [Elecraft] Barebone K2 Amplifier? > Fred, > > Elecraft has the KPA100 which offers automatic bandswitching and a lot of > other features. It can be driven by the barebones K2 quite nicely. > > Add an EC2 enclosure and you can have the KPA100 external and still with all > the function of the inboard unit - your basic K2 will still be ready to > 'grab and go' as a QRP transceiver. > > Pricewise - yes, it may seem like a lot in one 'ball of wax', but if you > price the components to build any external amplifier and include the > enclosure and other hardware, I believe the KPA100 price will be on a par > with others. > > OTOH, you may wish to wait until Dec 15 when the restrictions on external > amplifiers that can be driven with less than 50 watts is lifted and see > appears on the market. But I would bet that none of them will have the > operating conveinence of the K2/KPA100 combination - not to mention the > addition of the automatic tuner the KAT100 if one does not have resonant > antennas for every band. > > 73, > Don W3FPR > > > -----Original Message----- > > > > Are there any 50 or 100 watt external amplifiers, > > that a barebone QRP K2 can drive? Is anyone > > using one, for SSB and CW? > > > > Itch'n to build nother ........... > > > > Thanks, > > Fred N3CSY > > K2 54xx, 6/06 > > > -- > No virus found in this outgoing message. > Checked by AVG Free Edition. > Version: 7.5.432 / Virus Database: 268.15.15/579 - Release Date: 12/7/2006 > 1:31 PM > > _______________________________________________ > Elecraft mailing list > Post to: [hidden email] > 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: [hidden email] 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 |
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Tom Althoff wrote:
> As hinted to in Don's comments there is another reason for going with the > KPA-100. > > I love the fact that the KPA-100 has an integrated solid state T/R switch so > you can run full QSK. > > Most of the imported amps are relay driven via the PTT line or RF sensing > with a time delay and are not able to be keyed at normal keying speeds. I might as well add my 2 cents. Although I have a KPA100 I also have another amplifier which can be used with a barefoot K2. It's a modified Henry Radio 100B, just a pair of 2SC2876's like the KPA100 uses. I added a set of relay-switched lowpass filters from HFProjects <http://www.hfprojects.com/hfprojects/> and replaced the clunky t/r relay with a pair of Aromat (Matushtita) RSD12V reed relays. These relays are almost totally silent and more than fast enough for full QSK at any paddle-sent speed. The filter kit is complete, inexpensive and easy to put together. Although you may not have an old 100B around, it would be easy to build a similar amplifier with CCI components <http://www.communication-concepts.com/hf_amplifiers.htm>. They sell the boards, etc. I use my amplifier with an Argonaut 515 that I've been playing with (yes, I still prefer my K2). To use it with a K2, you would need to add an amplfier keying circuit such as that on the Elecraft website. Bandswitching can be with an external switch, or it can be automatic if you have a KRC2. My amplifier easily produces 140w CW (100w recommended on SSB due to IM issues). The main advantages of the KPA100 are that it can fit in the same box as the K2 and that it provides automatic bandswitching without a KRC2. -- 73, Vic, K2VCO Fresno CA http://www.qsl.net/k2vco _______________________________________________ Elecraft mailing list Post to: [hidden email] 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 |
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In reply to this post by David C Dawson-2
Hi All,
I received a new 2 band ( 80 and 40M) board for my K1 and a NB. The Saga starts: I needed my eyes examined, I'm 64, and I have a lot of change in my lenses prescriptions, plus have beginning of cataracts in left eye, which is my good eye. Great to get old, LOL So ordered a new pair of glasses just for computer and kit building ( big high bifocals) and will get a good pair next year when health care buck are available. I have received from eBay a solder station and a magnifying work station light and soon will be ready to open parts packages. Bob _______________________________________________ Elecraft mailing list Post to: [hidden email] 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 |
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In reply to this post by Fred (FL)
Hi Fred,
I've built the HF Packer amp (kit) which gives my barefoot K2 a little more oomph on PSK31. It puts out a bout 35 watts and is pretty straight forward. The manual can be downloaded here: http://www.hfprojects.com/projects/hfpacker/HFPackerAmp.pdf Let me know if I can be of any further help Tom WB2QDG K2 1103 ====================================== When a clock is hungry, does it goes back four seconds? ----- Original Message ----- From: "Fred (FL)" <[hidden email]> To: <[hidden email]> Sent: Thursday, December 07, 2006 5:23 PM Subject: [Elecraft] Barebone K2 Amplifier? > Are there any 50 or 100 watt external amplifiers, > that a barebone QRP K2 can drive? Is anyone > using one, for SSB and CW? > > Itch'n to build nother ........... > > Thanks, > Fred N3CSY > K2 54xx, 6/06 > > > > ____________________________________________________________________________________ > Cheap talk? > Check out Yahoo! Messenger's low PC-to-Phone call rates. > http://voice.yahoo.com > _______________________________________________ > Elecraft mailing list > Post to: [hidden email] > 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: [hidden email] 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 |
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