Unfortunately, at the price you get the K2 with 100 Watts and SSB, you may as well get a K3s.
On Thu, Jul 23, 2026 at 12:02 PM <[email protected]> wrote: > Send Elecraft mailing list submissions to > [email protected] > > To subscribe or unsubscribe via the World Wide Web, visit > http://mailman.qth.net/mailman/listinfo/elecraft > or, via email, send a message with subject or body 'help' to > [email protected] > > You can reach the person managing the list at > [email protected] > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of Elecraft digest..." > > > Today's Topics: > > 1. Re: K2/100 (Bruce Beford) > 2. Fwd: K2 (John Harper) > 3. Re: K2 (Jack Brindle) > 4. Re: K2 (W3FPR) > 5. K2/100 (John Harper) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Wed, 22 Jul 2026 13:14:20 -0400 > From: Bruce Beford <[email protected]> > To: [email protected] > Cc: [email protected] > Subject: Re: [Elecraft] K2/100 > Message-ID: <[email protected]> > Content-Type: text/plain; charset=utf-8 > > You are correct, John. > The K2/100 can?t also have the KAT2 antenna tuner installed at the same > time. The lid that has the 100W amplifier occupies the space that the KAT2 > QRP tuner would be in. > > Sometimes, an owner will keep the original cover and speaker with the KAT2 > attached, to swap out the KPA100 lid. The description and pictures in this > listing do not show that. > Thanks, > > Bruce Beford > > N1RX > > > > > ---------------------------------------------------------------------- > > > > Message: 1 > > Date: Wed, 22 Jul 2026 11:10:03 -0400 > > From: John Harper <[email protected]> > > To: Elecraft list <[email protected]> > > Subject: [Elecraft] K2/100 > > Message-ID: > > <CAPHmH=mzmmgsec+ehkq89ou01rzick8ke7fygw5zia5abyp...@mail.gmail.com> > > Content-Type: text/plain; charset="UTF-8" > > > > Hello all, > > > > Am I correct in thinking that the K2 would support either the 100w > > capability or a built-in ATU - but not both? > > > > An eBay offering caught my eye but I believe the description of the > > included options is incorrect: > > > > https://ebay.io/m/kq27IV > > > > 73, > > > > John AE5X > > https://ae5x.blogspot.com > > > > > > ------------------------------ > > > > _______________________________________________ > > Elecraft mailing list > > Post to: [email protected] > > http://mailman.qth.net/mailman/listinfo/elecraft > > You must be a subscriber to post. > > Elecraft web page: http://www.elecraft.com > > > > End of Elecraft Digest, Vol 267, Issue 15 > > ***************************************** > > > ------------------------------ > > Message: 2 > Date: Wed, 22 Jul 2026 14:16:39 -0400 > From: John Harper <[email protected]> > To: Elecraft list <[email protected]> > Subject: [Elecraft] Fwd: K2 > Message-ID: > <CAPHmH=N0GQVX6rVhghAKkuCKp= > [email protected]> > Content-Type: text/plain; charset="UTF-8" > > Interesting results. 17 respondents said that, no, a K2 cannot house both > the 100W amp and the ATU. > > One said it can, and he did it. > > John AE5X > https://ae5x.blogspot.com > > > Well, John, I know what I built and it had both. Built it almost 20 years > ago and stunned the > K2 is still in production. Kudos to Elecraft! > > > ------------------------------ > > Message: 3 > Date: Wed, 22 Jul 2026 14:02:45 -0500 > From: Jack Brindle <[email protected]> > To: John Harper <[email protected]> > Cc: Elecraft list <[email protected]> > Subject: Re: [Elecraft] K2 > Message-ID: <[email protected]> > Content-Type: text/plain; charset=utf-8 > > When a KPA100 is installed in a K2, there is no space for the ATU. But it > also doesn?t make sense to use that ATU since it will only handle 20 watts > and would be destroyed by the 100 watts of the KPA100. > A number of customers acquired the external cabinet (EC2 was it?) and > mounted the KPA100 and KAT100 in it. In this case the ATU could stay in the > K2?s enclosure for use when it was disconnected from the KPA/KAT. > > The K2 enclosure has room for two items - the ATU and a small lead-acid > battery, which recharged when the K2 was plugged in to 12V power. > > My K2 has every option we made, although the battery has long ago expired > and been removed. It is a really good little radio, and a lot of fun to > build and holds a prominent place on my desk. Still, I far prefer my K3s > for their performance. > Unfortunately many of the K2 options have been discontinued since > components are no longer available. Still, a fun rig to use, and definitely > recommended! > > 73, > Jack, W6FB > > > > On Jul 22, 2026, at 1:16?PM, John Harper via Elecraft < > [email protected]> wrote: > > > > Interesting results. 17 respondents said that, no, a K2 cannot house both > > the 100W amp and the ATU. > > > > One said it can, and he did it. > > > > John AE5X > > https://ae5x.blogspot.com > > > > > > Well, John, I know what I built and it had both. Built it almost 20 years > > ago and stunned the > > K2 is still in production. Kudos to Elecraft! > > ______________________________________________________________ > > Elecraft mailing list > > Home: http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/mmfaq.htm > > Post: mailto:[email protected] > > > > This list hosted by: http://www.qsl.net > > Please help support this email list: http://www.qsl.net/donate.html > > Message delivered to [email protected] > > > > ------------------------------ > > Message: 4 > Date: Wed, 22 Jul 2026 15:20:30 -0400 > From: W3FPR <[email protected]> > To: Jack Brindle <[email protected]>, John Harper > <[email protected]> > Cc: Elecraft list <[email protected]> > Subject: Re: [Elecraft] K2 > Message-ID: <[email protected]> > Content-Type: text/plain; charset=UTF-8; format=flowed > > John, > > Jack's comments are spot on - If the KPA100 and/or the KAT100 are housed > in an EC2 enclosure (same size as the basic K2, then it is possible, but > if the KAT100 is mounted on the K2 itself, then the 20 watt KAT2 cannot > be mounted, they would have to occupy the same physical space. > > If what you are considering is a 2 box rig, then it is possible, but not > in the single enclosure. > Note that the KPA100 and KAT100 and the EC2 enclosure have been > discontinued while the QRP K2 currently lives on. > > 73, > Don W3FPR > > > On 7/22/2026 3:02 PM, Jack Brindle via Elecraft wrote: > > When a KPA100 is installed in a K2, there is no space for the ATU. But > it also doesn?t make sense to use that ATU since it will only handle 20 > watts and would be destroyed by the 100 watts of the KPA100. > > A number of customers acquired the external cabinet (EC2 was it?) and > mounted the KPA100 and KAT100 in it. In this case the ATU could stay in the > K2?s enclosure for use when it was disconnected from the KPA/KAT. > > > > The K2 enclosure has room for two items - the ATU and a small lead-acid > battery, which recharged when the K2 was plugged in to 12V power. > > > > My K2 has every option we made, although the battery has long ago > expired and been removed. It is a really good little radio, and a lot of > fun to build and holds a prominent place on my desk. Still, I far prefer my > K3s for their performance. > > Unfortunately many of the K2 options have been discontinued since > components are no longer available. Still, a fun rig to use, and definitely > recommended! > > > > 73, > > Jack, W6FB > > > > > ------------------------------ > > Message: 5 > Date: Wed, 22 Jul 2026 20:35:26 -0400 > From: John Harper <[email protected]> > To: Elecraft list <[email protected]> > Subject: [Elecraft] K2/100 > Message-ID: > <CAPHmH=N51=568iAvFbJY6cEvFP-DHz9= > [email protected]> > Content-Type: text/plain; charset="UTF-8" > > Thanks all, for the posts here and the emails, 95% of which confirmed what > I believed to be the case. I may have been tempted to bid on the radio if > 100W and built-in ATU were possible but as someone mentioned, I can get a > K3 with those features for that price. > > 73 and thanks again, > > John AE5X > https://ae5x.blogspot.com > > > ------------------------------ > > _______________________________________________ > Elecraft mailing list > Post to: [email protected] > http://mailman.qth.net/mailman/listinfo/elecraft > You must be a subscriber to post. > Elecraft web page: http://www.elecraft.com > > End of Elecraft Digest, Vol 267, Issue 16 > ***************************************** > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]
