KX3 2m external amplifier
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Does anyone use a KX3 + internal 2m transverter with an external amplifier?
I am looking for any recommendations. I have looked at RM Italy LA-144 and Mirage B-34-G. My intention is to use it with both FM and SSB. Does anyone have experience with one of these amplifiers? -- 73, Dirk SA4DHT ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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On Thu,7/28/2016 9:50 AM, Dirk Handzic wrote:
> Does anyone use a KX3 + internal 2m transverter with an external amplifier? My neighbor W6GJB and I both have K3s with Elecraft 2m transverters. His is internal, mine is external (I've owned it for more than ten years). Several years ago, we searched for and acquired vintage (30 year old) brick amps that drive with either 2W or 10W for an output of about 150W. They have built-in preamps. These vintage amps were made during the 70s and 80s with the Mirage and RF Concepts name, and were built in Northern California. They also made versions of these amps that required higher drive levels -- 30W and 50W, I think, and they also made versions for 440 MHz. I own some of those too, which I use with the FM rig in my shack. The Mirage name was later bought by MFJ. We found four of these vintage amps in good condition in a few days simply by asking on two local club reflectors. I don't remember what we paid, but I do know that we considered them a bargain. :) Those older amps are a great fit to an Elecraft rig with an Elecraft transverter. We use the version that drives with 2W so that we can run the transverter at the lowest possible power, thus reducing heat. 73, Jim K9YC ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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In reply to this post by Dirk Handzic
I've used mine with the Mirage B-320-G quite a lot. It works great, both
FM and SSB with no issues. I've also used it with a little Tokyo Hi-Power 35 watt amp and had no issues, either. There really isn't anything complicated about getting the KX3 2m going with any amplifier - just make sure the one you choose will deliver the power you're looking for with 3 watts or less input. Tim AE6LX On Thu, Jul 28, 2016 at 9:50 AM, Dirk Handzic <[hidden email]> wrote: > Does anyone use a KX3 + internal 2m transverter with an external amplifier? > I am looking for any recommendations. I have looked at RM Italy LA-144 > and Mirage B-34-G. My intention is to use it with both FM and SSB. Does > anyone have experience with one of these amplifiers? > -- > 73, Dirk SA4DHT > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to [hidden email] > -- Owner, worldwidedx.com AE6LX, Amateur Radio ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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In reply to this post by Jim Brown-10
I need one of those... Adding 2m as soon as I can.
Can you give me some better info on that low drive unit, Jim? Bet one of the guys around here has one they aren't using... ______________________ Clay Autery, KY5G MONTAC Enterprises (318) 518-1389 On 7/28/2016 12:09 PM, Jim Brown wrote: > On Thu,7/28/2016 9:50 AM, Dirk Handzic wrote: >> Does anyone use a KX3 + internal 2m transverter with an external >> amplifier? > > My neighbor W6GJB and I both have K3s with Elecraft 2m transverters. > His is internal, mine is external (I've owned it for more than ten > years). Several years ago, we searched for and acquired vintage (30 > year old) brick amps that drive with either 2W or 10W for an output of > about 150W. They have built-in preamps. These vintage amps were made > during the 70s and 80s with the Mirage and RF Concepts name, and were > built in Northern California. They also made versions of these amps > that required higher drive levels -- 30W and 50W, I think, and they > also made versions for 440 MHz. I own some of those too, which I use > with the FM rig in my shack. The Mirage name was later bought by MFJ. > We found four of these vintage amps in good condition in a few days > simply by asking on two local club reflectors. I don't remember what > we paid, but I do know that we considered them a bargain. :) > > Those older amps are a great fit to an Elecraft rig with an Elecraft > transverter. We use the version that drives with 2W so that we can run > the transverter at the lowest possible power, thus reducing heat. > > 73, Jim K9YC > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to [hidden email] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
Re: KX3 2m external amplifier
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Any of the older ones rated at less than 10 watt in and a linear version not Class C will be fine. I have used the KLM, Mirage and TPL units with success on two meters with various rigs both FM and SSB. There are quite a few on the used market, just make sure it still works as advertised for rated output.
Good luck. Mel, K6KBE One of the founders of KLM Electronics From: Clay Autery <[hidden email]> To: [hidden email] Sent: Thursday, July 28, 2016 11:20 AM Subject: Re: [Elecraft] KX3 2m external amplifier I need one of those... Adding 2m as soon as I can. Can you give me some better info on that low drive unit, Jim? Bet one of the guys around here has one they aren't using... ______________________ Clay Autery, KY5G MONTAC Enterprises (318) 518-1389 On 7/28/2016 12:09 PM, Jim Brown wrote: > On Thu,7/28/2016 9:50 AM, Dirk Handzic wrote: >> Does anyone use a KX3 + internal 2m transverter with an external >> amplifier? > > My neighbor W6GJB and I both have K3s with Elecraft 2m transverters. > His is internal, mine is external (I've owned it for more than ten > years). Several years ago, we searched for and acquired vintage (30 > year old) brick amps that drive with either 2W or 10W for an output of > about 150W. They have built-in preamps. These vintage amps were made > during the 70s and 80s with the Mirage and RF Concepts name, and were > built in Northern California. They also made versions of these amps > that required higher drive levels -- 30W and 50W, I think, and they > also made versions for 440 MHz. I own some of those too, which I use > with the FM rig in my shack. The Mirage name was later bought by MFJ. > We found four of these vintage amps in good condition in a few days > simply by asking on two local club reflectors. I don't remember what > we paid, but I do know that we considered them a bargain. :) > > Those older amps are a great fit to an Elecraft rig with an Elecraft > transverter. We use the version that drives with 2W so that we can run > the transverter at the lowest possible power, thus reducing heat. > > 73, Jim K9YC > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to [hidden email] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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In reply to this post by Jim Brown-10
I've been very happy with a vintage RF Concepts 2-417. It's rated for
170W out with 45W drive. However, I used it very successfully driving it from my TH-F6A 5W HT. I never measured the output with that drive, but it was clearly considerable. Also, the preamp is quite good. These are readily available used, best guess is price around $175-250 for one in good condx. 73, Josh W6XU ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
Re: KX3 2m external amplifier
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My TE Systems 1452G amp puts out a tad under 400 watts with 4 watts drive.
AND it is biased for linear service. 73, Charlie k3ICH -----Original Message----- From: Elecraft [mailto:[hidden email]] On Behalf Of Josh Fiden Sent: Thursday, July 28, 2016 3:34 PM To: [hidden email] Subject: Re: [Elecraft] KX3 2m external amplifier I've been very happy with a vintage RF Concepts 2-417. It's rated for 170W out with 45W drive. However, I used it very successfully driving it from my TH-F6A 5W HT. I never measured the output with that drive, but it was clearly considerable. Also, the preamp is quite good. These are readily available used, best guess is price around $175-250 for one in good condx. 73, Josh W6XU ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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In reply to this post by Dirk Handzic
I have a 2M amp about 80 watts from Edward R Cole, KL6UW. I
drive it with my 5W HT. It seems to work well, although I just got it working a month or so ago and have been away most of the time since. Note that Ed will set it up for the drive level you need. Pluses: Solidly built. Automatic T/R switching, or by control wire. Minuses: Little/no protective circuity. Class A so it draws a lot of power with no input. I built mine as a kit and it was a fun build. Since I was an early adopter, I asked Ed a lot of questions and got very useful support throughout the process. 73 Bill AE6JV On 7/28/16 at 9:50 AM, [hidden email] (Dirk Handzic) wrote: >Does anyone use a KX3 + internal 2m transverter with an external amplifier? >I am looking for any recommendations. I have looked at RM Italy LA-144 >and Mirage B-34-G. My intention is to use it with both FM and SSB. Does >anyone have experience with one of these amplifiers? ----------------------------------------------------------------------- Bill Frantz | "The only thing we have to | Periwinkle (408)356-8506 | fear is fear itself." - FDR | 16345 Englewood Ave www.pwpconsult.com | Inaugural address, 3/4/1933 | Los Gatos, CA 95032 ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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In reply to this post by Elecraft mailing list
K6PF on the CADXA Yahoo group is advertising (among other things) .
TE Systems 1410-G for 2m. Xlnt condx. 10W in / 160W out. Will drive above 8877 HPA to legal limit pwr output with abt 7W. Has built-in preamp. Includes manual & schematic. Asking $225. On 7/28/2016 12:08 PM, Mel Farrer via Elecraft wrote: > Any of the older ones rated at less than 10 watt in and a linear version not Class C will be fine. I have used the KLM, Mirage and TPL units with success on two meters with various rigs both FM and SSB. There are quite a few on the used market, just make sure it still works as advertised for rated output. > > Good luck. > Mel, K6KBE > One of the founders of KLM Electronics ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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In reply to this post by Charlie T, K3ICH
Difficult to power, need a stiff supply that does 60A. Great amp but know what you're getting into.
73, Josh W6XU Sent from my mobile device > On Jul 28, 2016, at 12:58 PM, Charlie T, K3ICH <[hidden email]> wrote: > > My TE Systems 1452G amp puts out a tad under 400 watts with 4 watts drive. > AND it is biased for linear service. > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
Re: KX3 2m external amplifier
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In reply to this post by Dirk Handzic
Ed, KL7UW, built me a nice 80w 2m amp for less than $400.
http://www.kl7uw.com Mike In a message dated 7/28/2016 12:54:12 P.M. Eastern Daylight Time, [hidden email] writes: Does anyone use a KX3 + internal 2m transverter with an external amplifier? I am looking for any recommendations. I have looked at RM Italy LA-144 and Mirage B-34-G. My intention is to use it with both FM and SSB. Does anyone have experience with one of these amplifiers? -- 73, Dirk SA4DHT ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
Re: KX3 2m external amplifier
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Get a Gemini SSPA http://www.linamp.co.uk/gemini_2.html
Robin G1MHU ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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In reply to this post by Josh Fiden
Not difficult to power, at all. Just buy two of these 50 amp units and run
them in parallel. I've personally tested these in my shack and they work great. No RF hash visible on the panadapter on any band that I run. And they're made right here in California: http://www.12voltpowersupplies.us/ On Thu, Jul 28, 2016 at 2:12 PM, Josh <[hidden email]> wrote: > Difficult to power, need a stiff supply that does 60A. Great amp but know > what you're getting into. > > 73, > Josh W6XU > > Sent from my mobile device > > > On Jul 28, 2016, at 12:58 PM, Charlie T, K3ICH <[hidden email]> wrote: > > > > My TE Systems 1452G amp puts out a tad under 400 watts with 4 watts > drive. > > AND it is biased for linear service. > > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to [hidden email] > -- Owner, worldwidedx.com AE6LX, Amateur Radio ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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On the recommendation of someone on this list, about a year ago I bought
one of the 350-12 units. It came with no documentation, and no certification of compliance with anything. It is VERY NOISY, and nothing I have tried has been able to make a dent in the noise. Multiple chokes on AC, multiple chokes on DC, and bypass caps on both AC and DC. It's currently sitting on the shelf in my store room. 73, Jim K9YC On Thu,7/28/2016 5:00 PM, Tim Tucker wrote: > Not difficult to power, at all. Just buy two of these 50 amp units and run > them in parallel. I've personally tested these in my shack and they work > great. No RF hash visible on the panadapter on any band that I run. And > they're made right here in California: > > http://www.12voltpowersupplies.us/ ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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Thanks Jim... I was going to try one of those to test the claims
made... Even had someone offer to pay me my cost +$10 if I decided I didn't want it after testing... The business owner claims they are "quiet" and says there are "counterfeits" being passed off as "his" power supplies. Really would be nice to have a SMPS that was quiet, modular, and able to be put in parallel for more power out... ______________________ Clay Autery, KY5G MONTAC Enterprises (318) 518-1389 On 7/28/2016 7:34 PM, Jim Brown wrote: > On the recommendation of someone on this list, about a year ago I > bought one of the 350-12 units. It came with no documentation, and no > certification of compliance with anything. It is VERY NOISY, and > nothing I have tried has been able to make a dent in the noise. > Multiple chokes on AC, multiple chokes on DC, and bypass caps on both > AC and DC. It's currently sitting on the shelf in my store room. > > 73, Jim K9YC > > On Thu,7/28/2016 5:00 PM, Tim Tucker wrote: >> Not difficult to power, at all. Just buy two of these 50 amp units >> and run >> them in parallel. I've personally tested these in my shack and they >> work >> great. No RF hash visible on the panadapter on any band that I run. >> And >> they're made right here in California: >> >> http://www.12voltpowersupplies.us/ > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to [hidden email] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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In reply to this post by Tim Tucker
While I don't doubt that you're successfully using these, I previously
looked into these supplies and find the claim that they are made in California to be highly questionable. At the least, I don't see where the products are marked "Made in USA" nor does it say this anywhere that I can find on their web site. They refer to copies as "offshore clones" and so on, but no where do they refer to their own supplies as made here. Selling 30A supplies for $50 full of hand inserted through hole components, it seems frankly impossible that they are manufactured using California labor. If you have information to the contrary, please post as I'd love to be wrong. Since we all own Elecraft gear, I'm guessing that many have the same strong preference for USA made products that I do. 73, Josh W6XU On 7/28/2016 5:00 PM, Tim Tucker wrote: > Not difficult to power, at all. Just buy two of these 50 amp units and run > them in parallel. I've personally tested these in my shack and they work > great. No RF hash visible on the panadapter on any band that I run. And > they're made right here in California: > > http://www.12voltpowersupplies.us/ > > > > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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In reply to this post by Jim Brown-10
Thanks Jim for the information. I certainly don’t want one of them in my
shack. Have used Astron PS for many years with excellent results, power and RFI wise.. 73s Jim K4JAF -----Original Message----- From: Jim Brown Sent: Thursday, July 28, 2016 7:34 PM To: [hidden email] Subject: Re: [Elecraft] KX3 2m external amplifier On the recommendation of someone on this list, about a year ago I bought one of the 350-12 units. It came with no documentation, and no certification of compliance with anything. It is VERY NOISY, and nothing I have tried has been able to make a dent in the noise. Multiple chokes on AC, multiple chokes on DC, and bypass caps on both AC and DC. It's currently sitting on the shelf in my store room. 73, Jim K9YC On Thu,7/28/2016 5:00 PM, Tim Tucker wrote: > Not difficult to power, at all. Just buy two of these 50 amp units and > run > them in parallel. I've personally tested these in my shack and they work > great. No RF hash visible on the panadapter on any band that I run. And > they're made right here in California: > > http://www.12voltpowersupplies.us/ ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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In reply to this post by Josh Fiden
You can call the owner and talk to him yourself and make your own
determination on where they're made. He has his name, address, and email address right there - email and ask for his phone number. I know quite a few people (including myself) that have purchased several of those power supplies direct from him and have not had any problem with RFI. I have also purchased one of the chinese versions that look the same and threw it out almost immediately because it was so bad. If you bought one direct from him that was noisy, I'd call him up and send it back for him to replace to test out his advertised 2 year warranty. On Thu, Jul 28, 2016 at 5:44 PM, Josh Fiden <[hidden email]> wrote: > While I don't doubt that you're successfully using these, I previously > looked into these supplies and find the claim that they are made in > California to be highly questionable. At the least, I don't see where the > products are marked "Made in USA" nor does it say this anywhere that I can > find on their web site. They refer to copies as "offshore clones" and so > on, but no where do they refer to their own supplies as made here. Selling > 30A supplies for $50 full of hand inserted through hole components, it > seems frankly impossible that they are manufactured using California labor. > > If you have information to the contrary, please post as I'd love to be > wrong. Since we all own Elecraft gear, I'm guessing that many have the same > strong preference for USA made products that I do. > > 73, > Josh W6XU > > On 7/28/2016 5:00 PM, Tim Tucker wrote: > >> Not difficult to power, at all. Just buy two of these 50 amp units and >> run >> them in parallel. I've personally tested these in my shack and they work >> great. No RF hash visible on the panadapter on any band that I run. And >> they're made right here in California: >> >> http://www.12voltpowersupplies.us/ >> >> >> >> >> > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to [hidden email] > -- Owner, worldwidedx.com AE6LX, Amateur Radio ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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In reply to this post by Dirk Handzic
Thanks to Mike and Bill for buying my 2M80 amps (assembled or partial
kit). I built twelve amps so far and most were to be driven by KX3's with 2M module. I set nearly all amps to be driven by 1.5-2.0w so the KX3-2M would not have to run full power. The 80w RF module that is used is not in production so now limited quantities available (from RFParts). I have identified a replacement power module which should run 60-70w. But there are quite few surplus 2m linear amps available. Mirage, TE Systems, and RFConcepts. I have a RFC 2-23 linear which runs 2w/30w and RFC 3-17 linear which runs 40w/170w. I have three 2m sources: an old FT736R (30w), DEMI 28-144 HP (50w) and the KX3-2M which not up to stuff running only 1.5w. I use either the RFC 2-23 or a surplus MOT amp that runs 1w/60w (FM) with my KX3-2M. I am not taking orders for a couple months as I am working on some of my own projects while summer wx is still here: 6m 1kW amp and possibly building a new 18x26 foot ham shack which will require running all new cables to my four towers and dish. Take a look at the amps here: http://www.kl7uw.com/kits.htm 73, Ed -------------------------------------- Ed, KL7UW, built me a nice 80w 2m amp for less than $400. http://www.kl7uw.com Mike In a message dated 7/28/2016 12:54:12 P.M. Eastern Daylight Time, [hidden email] writes: Does anyone use a KX3 + internal 2m transverter with an external amplifier? I am looking for any recommendations. I have looked at RM Italy LA-144 and Mirage B-34-G. My intention is to use it with both FM and SSB. Does anyone have experience with one of these amplifiers? -- 73, Dirk SA4DHT 73, Ed - KL7UW http://www.kl7uw.com "Kits made by KL7UW" Dubus Mag business: [hidden email] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
Re: KX3 2m external amplifier
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In reply to this post by Jim Brown-10
All of the Mirage amplifiers called linear were just that. Only special order FM repeater amplifiers could be Class C.
Mel, K6KBE From: Ron D'Eau Claire <[hidden email]> To: [hidden email] Sent: Friday, July 29, 2016 10:31 AM Subject: Re: [Elecraft] KX3 2m external amplifier Are those capable of linear operation for SSB as the poster asked? The ones I had back then were non-linear (class C) strictly for FM/CW only. 73, Ron AC7AC -----Original Message----- Several years ago, we searched for and acquired vintage (30 year old) brick amps that drive with either 2W or 10W for an output of about 150W. They have built-in preamps. These vintage amps were made during the 70s and 80s with the Mirage and RF Concepts name, and were built in Northern California. They also made versions of these amps that required higher drive levels -- 30W and 50W, I think, and they also made versions for 440 MHz. I own some of those too, which I use with the FM rig in my shack. The Mirage name was later bought by MFJ. We found four of these vintage amps in good condition in a few days simply by asking on two local club reflectors. I don't remember what we paid, but I do know that we considered them a bargain. :) Those older amps are a great fit to an Elecraft rig with an Elecraft transverter. We use the version that drives with 2W so that we can run the transverter at the lowest possible power, thus reducing heat. 73, Jim K9YC ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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