[Elecraft] FS: Elecraft KPA1500 amplifier
I offer for sale my KPA1500 amplifier in excellent cosmetic and operational condition. Given the amount of nonsense I see on a lot of boards with respect to high end gear sales, I would welcome the serious buyer come to the shack for a first hand personal check out of the amp so the new owner can be 100% satisfied of it's condition. For those otherwise trusting buyers who don't associate my callsign with that of a scoundrel, I would be willing to do some driving for a meet up & hand off as part of the deal. QTH here is about 30 minutes south of Kansas City, KS, in the lovely center of the propagation black hole here in the great USA. $5400 OBO. Those interested - kindly contact me off list to jeff at ac0c dot com Happy Thanksgiving and this year it looks like we will have some extra propagation on the CQ WPX CW contest this weekend as well to be thankful for. 73/jeff/ac0c alpha-charlie-zero-charlie www.ac0c.com __ 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: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] KPA-1500 failing on 160...AGAIN!
It's from my head. I have a BVT - it's DC so the 4K is a DC claim. I BVT cables used here in the shack as a fast way to ensure I don't have some microscopic wire or filing or whatever down in a connector - stuff like that is a nightmare to troubleshoot. At one point I tried to use a PL259 for a HV run but it arced from time to time at 4.2KV. So at least in this shack, a PL259/SO239 is rated for well under 4KV. 73/jeff/ac0c alpha-charlie-zero-charlie www.ac0c.com On 9/27/19 3:14 PM, Walter Underwood wrote: Few of us can guarantee dry air for our antenna connections. Where is this data from? For the question “Has anyone tested them?”, I expect that Amphenol tests to the published specs. Those tests would be over the entire temperature range in the data sheet. If you visit the data sheets I linked for the UHF and type N connectors, you might notice that type N has spect for many more attributes than UHF. wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) On Sep 27, 2019, at 11:04 AM, Jeff Blaine wrote: PL259/SO239 BDV is around 4KV in dry air. 73/jeff/ac0c alpha-charlie-zero-charlie www.ac0c.com On 9/27/19 1:01 PM, j...@kk9a.com wrote: 5000 watts is 500 volts rms with a perfect antenna system. I suspect that PL-259 connectors really can withstand much more than 500 volts. Has anyone tested them? My station has a mixture of UHF, N and DIN connectors and all have worked perfectly for 1500 watts HF. If PL-259s are failing they are either poor quality connectors or there are serious antenna issues causing excessive voltage. John KK9A Walter Underwood K6WRU Messages sorted by: [ date ] [ thread ] [ subject ] [ author ] From the Amphenol data sheet, UHF connectors are rated for 500 V peak, so they are marginal for use at that power level. Type N connectors are rated at 1500 V peak. wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) __ 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: http://www.qsl.net/donate.html Message delivered to keepwalking...@ac0c.com __ 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: http://www.qsl.net/donate.html Message delivered to wun...@wunderwood.org __ 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: http://www.qsl.net/donate.html Message delivered to keepwalking...@ac0c.com __ 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: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] KPA-1500 failing on 160...AGAIN!
I don't doubt the AMP connector is great but doubt this issue is due to a connector. One thing I can say from personal experience is that if you have a tall or long antenna, you definitely need a static bleed on that bad boy. Never really gave those stories much credence but a number of years back I was doing some work on an 80m full size vert one summer. Managed at one point to to reach up and touch a wire that was hanging off the vertical - and landed up on my butt from the jolt. So that static build up thing is real. Been using high value high power wire wound resistors for bleeding since. And a polyphaser to provide the discharge path in the event the voltage builds up too high from a nearby strike or whatever. The 1500 has PIN diodes for switching. Generically speaking running a PIN diode switched amp without a spark gap on the coax to clamp spikes from whatever cause seems like tempting fate one step too close. Maybe the 1500 has some internal protection - don't hear much about a lot of switching failure on the amp. But a GDT pass through like a polyphaser is cheap insurance. PS: CQ WW RTTY starts tonight!!! 73/jeff/ac0c alpha-charlie-zero-charlie www.ac0c.com On 9/27/19 1:48 PM, Jim Brown wrote: On 9/27/2019 11:01 AM, j...@kk9a.com wrote: If PL-259s are failing they are either poor quality connectors or there are serious antenna issues causing excessive voltage. YES! Only first quality connectors and adapters should be used. I run legal limit to resonant antennas fed with 50 ohm and 75 ohm coax and hard line. Amphenol 83-1SP connectors are the standard throughout my station. I use type N only on hard line for which UHF connectors are not available. I've NEVER experienced any symptoms of arcing in connectors. I HAVE seen lots problems caused by poor quality connectors and adapters, and by poorly soldered coax connectors when putting stations together for Field Day and similar operations. My rule: In North America, if the connector doesn't say Amphenol 83-1SP or have a MIL spec number stamped on it, it is JUNK. The same holds true for adapters. 73, Jim K9YC __ 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: http://www.qsl.net/donate.html Message delivered to keepwalking...@ac0c.com __ 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: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] KPA-1500 failing on 160...AGAIN!
PL259/SO239 BDV is around 4KV in dry air. 73/jeff/ac0c alpha-charlie-zero-charlie www.ac0c.com On 9/27/19 1:01 PM, j...@kk9a.com wrote: 5000 watts is 500 volts rms with a perfect antenna system. I suspect that PL-259 connectors really can withstand much more than 500 volts. Has anyone tested them? My station has a mixture of UHF, N and DIN connectors and all have worked perfectly for 1500 watts HF. If PL-259s are failing they are either poor quality connectors or there are serious antenna issues causing excessive voltage. John KK9A Walter Underwood K6WRU Messages sorted by: [ date ] [ thread ] [ subject ] [ author ] From the Amphenol data sheet, UHF connectors are rated for 500 V peak, so they are marginal for use at that power level. Type N connectors are rated at 1500 V peak. wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) __ 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: http://www.qsl.net/donate.html Message delivered to keepwalking...@ac0c.com __ 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: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] [K2] DXE Clifton Labs Z10000 Buffer Amp
Not sure about a review at DXE, but categorically anything cooked up by the late Jack Smith K8ZOA is an exceptional performer. The CLifton ports that DXE has done have been well implemented so you can expect good results. I've used the original Clifton version of the board in a number of projects and it's excellent. The huge reverse isolation ensures that the LO of the SDR does not feed back into the rig. 73/jeff/ac0c alpha-charlie-zero-charlie www.ac0c.com On 8/19/19 10:54 PM, Clark Macaulay wrote: Looking for comments about the reissue of this amp as I'm considering adding a panadapter to my venerable (and very capable) K2. There is only one review at DXE and it is not very complimentary. __ 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: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] KPA1500 fans
Is there a fan mod other than a firmware upgrade? 73/jeff/ac0c alpha-charlie-zero-charlie www.ac0c.com On 6/3/19 10:14 AM, Dan Atchison via Elecraft wrote: I have all of the KPA1500 fan mods and firmware upgrades and they make the amplifier so much quieter.?? Good job, Elecraft. What I would like to see, however, is a firmware /option /to exhibit the following tendency. Minimum fan speed at 0.?? When the amp detects a PTT, then the fan speed would increase to fan level 1 and remain that way for a period of time after PTT detection has ceased (perhaps 10 - 15 seconds?). After that delay time it would go back to fan speed 0.?? Of course, temperature sensing would increase fan speed regardless of the PTT sense. If this has been discussed before, I missed it.?? If it's currently available then I missed it again. Awaiting my K4.?? I hate waiting! 73, Dan -- N3ND __ 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: http://www.qsl.net/donate.html __ 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: http://www.qsl.net/donate.html
[Elecraft] KPA1500 FW 1.78 - no PTT response
Loaded up the beta firmware today. The PTT (key line) was dead after that. Reloading 1.64 and all was functional again. What am I overlooking? 73/jeff/ac0c alpha-charlie-zero-charlie www.ac0c.com __ 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: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] KPA1500 - temp reading drops 10C when under power
Odds are not good there. The antennas have a balun at the feedpoint, are on a tower 500 feet from the shack and the hardline runs under ground. If there is common mode involved, it's some sort of new hyper-super-ultra-infina-deluxe type never before discovered on earth. 73/jeff/ac0c alpha-charlie-zero-charlie www.ac0c.com On 18-Aug-18 7:12 AM, Bob McGraw K4TAX wrote: I'd say a bit of common mode current on the feed line. I see that from time to time with my KPA500 on certain bands/antennas. 73 Bob, K4TAX On 8/17/2018 11:45 PM, Jeff Blaine wrote: While running the KPA1500 in the SARTG tonight, I noticed that the temp reading drops about 10C when transmitting. min fan speed 1. Seems to be related to power - at 1500W it's pretty close to 10C. At lower powers, it's less of a difference. I don't recall seeing that before. Normal? 73/jeff/ac0c alpha-charlie-zero-charlie www.ac0c.com __ 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: http://www.qsl.net/donate.html Message delivered to rmcg...@blomand.net __ 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: http://www.qsl.net/donate.html Message delivered to keepwalking...@ac0c.com __ 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: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] KPA1500 - temp reading drops 10C when under power
Yea, I was on 40m also. So there's a second data point. Did not notice it before - but having watched it pretty consistently tonight, I will know what to look for on other bands. Tonight was the first night I had the chance to run it on RTTY and want to be sure the thing is ready for prime time given the CQ RTTY DX is coming up end of Sept. The good news is that the amp seemed to level off at 73C (or 63C?) and that means fan 2 was able to keep things under control. SWR is nearly 1:1 on that band and I don't know what it does on other bands but it was REALLY GREAT that fan speed 3+ was not needed. 1&2 are in a completely different sound category compared to the 3+ which sound like my company's computer server room. ha ha. 73/jeff/ac0c alpha-charlie-zero-charlie www.ac0c.com On 18-Aug-18 12:11 AM, Bill Stravinsky via Elecraft wrote: I noticed this problem shortly after getting my 1500 back in May. I only see this problem on 40 mtrs for some reason. I've never seen a 10 degree fluctuation but itis regularly 6 degrees and has approached 8 degrees. I only work cw for the most part. I see it all the time when the duty cycle goes up like when contesting and thatis when I start looking at the temp more often so that's how I noticed it to begin with.. I've learned to live with it, at least for the time being, for the following reason. I contacted Elecraft and talked with one of the engineers. Apparently this problem was addressed during early engineering but leave it to me to be the first one toexperience this. He explained that there might be a possible fix for it that would require installing a cap, most likely an SMD type. I would be more comfy with a discretecomponent, hi. But the jist of the conversation was that its just a touchy temp sending device. I downloaded some file from the utility program and I don't think thetrouble was exposed in the file for some reason after I sent it to them. Film at eleven. BillK3WJV. On Saturday, August 18, 2018, 12:49:55 AM EDT, Jeff Blaine wrote: While running the KPA1500 in the SARTG tonight, I noticed that the temp reading drops about 10C when transmitting. min fan speed 1. Seems to be related to power - at 1500W it's pretty close to 10C. At lower powers, it's less of a difference. I don't recall seeing that before. Normal? 73/jeff/ac0c alpha-charlie-zero-charlie www.ac0c.com __ 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: http://www.qsl.net/donate.html Message delivered to k3...@yahoo.com __ 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: http://www.qsl.net/donate.html Message delivered to keepwalking...@ac0c.com __ 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: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] KPA1500 - temp reading drops 10C when under power
While running the KPA1500 in the SARTG tonight, I noticed that the temp reading drops about 10C when transmitting. min fan speed 1. Seems to be related to power - at 1500W it's pretty close to 10C. At lower powers, it's less of a difference. I don't recall seeing that before. Normal? 73/jeff/ac0c alpha-charlie-zero-charlie www.ac0c.com __ 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: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] KPA-1500 Efficiency
There's no way 40W drives exactly 1500W on all bands. Here's what I get into a DL (no tuner). Power measurements based on the LP100 which was calibrated by Larry last year - not what I would call a current cal but certainly better than a generic Bird. Feed with a key-down in CW, with the data taken after about 5 seconds to get a stable reading. Dont' take the values as gospel. There is at least a 50w error range. 160 1644W 80 1466W 40 1515W 20 1436W 15 1371W 10 1414W But it's definitely unrealistic to assume that the amp should have a uniform gain vs. frequency response. The gain is going to be related to many things. There is a LPF hanging off the back and it's insertion loss is a factor - and it's going to drift a touch as it heats up. Theres the front end which likly a pad. The overall gain is be in compliance with the FCC regulation. Most SS amps native gain is such that a few watts is enough to get LL output levels and I'm sure that's the case with the LDMOS even if they have a ton of NFB in the design. Plus the effects of the combiners internally which are definitely not going to be completely flat. And there is some compression that gets to be easily measurable once you hit about the KW level. And temp. And who knows what else. 73/jeff/ac0c alpha-charlie-zero-charlie www.ac0c.com On 15-Aug-18 10:18 PM, Paul Baldock wrote: Are you saying it took exactly 40W input on each band to produce 1500W out.. I find the gain of the amp very different from band to band. For example on 80M mine takes 32W to produce 1500W into a dummy load, and 15M it takes 47W to produce 1500W in to a dummy load. That's a variation of 1.7dB, not very flat. Also as others have reported as the amp warms up the gain decreases a little (requires a bit more drive). - Paul KW7Y At 07:40 PM 8/15/2018, you wrote: Just curious what other users of the KPA-1500 see as the efficiency reported by the KPA-1500 utility app. The following efficiencies are being report by my KPA-1500 utility app by band into a dummy load running 40 watts input and 1500 watts output: 80M CW: 61% 80M SSB: 64% 40M CW: 54% 40M SSB: 59% 20M CW: 52% 20M SSB: 52% 17M CW: 55% 15M CW: 64% 15M SSB: 62% 12M CW: 68% 10M CW: 56% 10M SSB: 58% Does this compare favorably with other KPA-1500 owners? Charles K5UA __ 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: http://www.qsl.net/donate.html Message delivered to p...@paulbaldock.com __ 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: http://www.qsl.net/donate.html Message delivered to keepwalking...@ac0c.com __ 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: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] KPA1500 - adding fans
The kind of noise the amp makes is related to but a separate issue to the loudness. Last night I was doing some comparison listening while trying to find some DX on 20m and noticed that while the FAN2 setting was definitely louder than FAN1, it seems a more "pleasant" noise compared to FAN1 which tends to have some sort of a sequel-type note to the sound it makes. 73/jeff/ac0c alpha-charlie-zero-charlie www.ac0c.com On 10-Aug-18 1:26 PM, Jim Brown wrote: This is an excellent post, and I agree with all of it. I will add that acoustic considerations also STRONGLY affect the noise produced in any ventilation system, and it is science more than an art. The engineers who specialize in this field are called acoustic consultants, their formal training is in physics and mechanical engineering, and the acoustics specialization begins at the Masters Degree level. In my professional life (I'm long retired) I worked with professionals in this discipline in the design of sound systems and acoustics for large public spaces, where one of their concerns was making very good HVAC systems so quiet that they could not be heard in concert halls. The considerations there are same as in the KPA1500 -- the turbulence (or lack thereof) of air flow, the path, air speed, the fans themselves, vibration isolation. I do NOT recommend that users experiment with ventilation. I DO strongly urge Elecraft to retain the services of a good acoustic consultant to address complaints I've seen about fan noise. 73, Jim K9YC On 8/10/2018 10:52 AM, K8ZCT wrote: My KPA1500 is S/N 00059. I don't operate full power all the time. I live in a compromised antenna area, and so I will use the amp as required to make contacts that are difficult assuming I can hear the station well enough to have the QSO. I have not had problems with the weird display issue that has been reported, and also someone recently replaced their antenna tuner to solve a problem which I have not seen either yet. Thanks for this site, as it gives us a heads up if we would have similar issues with our equipment. Maybe I don't run the amp hard enough, my antenna will take 1500 watts, but I probably never push it that hard for long periods. I run FT8, but with 100 watts or less and I have made plenty of contacts. FT8 is whole another discussion. SSB is the least difficult for the amp to deal with. CW is harder and RTTY, FM,FT8 and AM are the worst. The fans on the power supply make some noise, but I have had several tube amps over the last 40 years that are louder. I haven't installed the latest software update issued in July, so I need to see if that makes any difference. I was involved with the design specification, and purchase of medium and high voltage transformers for my career. Cooling of electrical equipment is a little more complex than just installing fans. There are proper air flow requirements to look at in the design, so the air doesn't get short circuited, and actually hurt the process. So more air isn't always better if it is not properly applied. Transformers have RTD's or Thermocouples imbedded in the windings to measure transformer temperature, because that is the "hottest spot" of any transformer. The hot spot temperature is made up of the ambient air temperature normally 40 C maximum is used with a 30C average over a 24 hour period, and the temperature rise of the unit under load. Most electrical equipment design is based on a 40C maximum ambient but I didn't see in the manual what Elecraft considered for a maximum. Regardless, the ambient heat around the amplifier must be controlled and not trapped around the unit. An air conditioned space or proper ventilating for area is critical. If you don't remove the heat your unit will work harder and could make more noise than other units. Wayne or Eric can comment, but RF amplifiers must follow similar laws of physics. The heat sink temperature must be maintained or the devices primarily the LDMOS final amp units will fail. There are average and maximums I would assume are used in the Elecraft design. Ambient air must be kept at a certain maximum and air flows must not be restricted. At this time, it good to provide feedback to the vendor on operational concerns of the equipment, and I did plenty of that over the years. However, I usually realized there were some people, who did this for a living, and I was a consumer maybe a smart consumer, but still I didn't design transformers as my main employment. With all the KPA1500's still under warranty I don't think it is a good idea to modify or change anything with regards to the operation, and design of the KPA1500. Again, I am not Wayne or Eric, but I think you are doing it at your risk. I will wait for Wayne and Eric to come out with improvements, and updates based on customer and other inputs, but I will not modify the KPA1500 in anyway including external programs that change the operation without
Re: [Elecraft] KPA500 installation on side?
To clarify - by "side" i mean the side that you would call the left or right side of the case - that is what i'm considering to have down. Not the face or back. Just rotating the amp 90 deg. 73/jeff/ac0c alpha-charlie-zero-charlie www.ac0c.com On 08-Jul-18 6:22 PM, Dauer, Edward wrote: Oops. My error. I read KPA1500, not 500. Wishful thinking on my part. Move to strike prior testimony. Ted , KN1CBR On 7/8/18, 5:16 PM, "Dauer, Edward" wrote: Just last week I sent the same question to Elecraft Support. The answer I got was yes, it can be, with two caveats. First, be sure to leave the 4 inches of free air clearance next to the top (top as in standard orientation), and don't set it so that the LEDs are on the floor. The orientation isn't odd, really. If it is resting on its right side the power switch will be on the rear, but very near the top edge. That's how mine will be, when it arrives this week --- I hope.. Ted, KN1CBR -- Message: 9 Date: Sun, 8 Jul 2018 10:56:03 -0700 From: Mark Goldberg To: Elecraft Mailing List Subject: [Elecraft] KPA500 installation on side? Message-ID: Content-Type: text/plain; charset="UTF-8" Can the KPA500 be installed on it's side? There are feet there. I want to install it in an RV and there is more room for wiring and fan air movement that way. A search did not turn up any answers. 73, Mark W7MLG __ 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: http://www.qsl.net/donate.html Message delivered to keepwalking...@ac0c.com __ 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: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] KPA1500 install on side
Can the KPA1500 and power supply be mounted on it's side? 73/jeff/ac0c alpha-charlie-zero-charlie www.ac0c.com __ 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: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] WTB: K3 for neighbor SWL - damaged TX preferred
My neighbor is a SWL and when I'm on the radio it pretty much crushes his little table top RX. As a way to preserve neighboorhood harmony, I'm looking for a radio with a tough front end that would alievate his problem to an extent. So I was thinking a great solution would be an old K3 that works OK on RX but has an inoperative TX. I guess the ideal config would be the AM filter, general coverage RX and a broken TX section. If you have something like that on your shelf and it needs a new home, please contact me directly (off the reflector). 73/jeff/ac0c alpha-charlie-zero-charlie www.ac0c.com __ 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: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
