Re: [Elecraft] KPA1500 PSU fan mod - Need resistor
They originally sent me a load resistor that looks like a TO220 style transistor. That connects to PSU 50 volt output to have some load on PSU when in standby, this reducing birdies on 80 meters. They are sending me another parts (resistor?) to lower PSU fan speed which when idle PSU fans are loudest thing in shack 73 Dave wo2x Sent from my waxed string and tin cans. > On May 31, 2020, at 6:00 PM, Eric Norris wrote: > > > I am still a bit confused by this, as I thought I was installing both--it > consisted of two parts. Please share what you hear from Support. > > 73 Eric WD6DBM > >> On Thu, May 28, 2020, 1:21 PM Dave wrote: >> Hi Lou >> >> I think the PS minimum load kit is different than the resistor change to >> slow down the PSU fans. I have already done the minimum load resistor which >> helps to reduce the birdies on 80 meters. >> >> What I am referring to is a resistor change done in production which slows >> down the PSU fans when the amp is idle in standby. I have not had >> confirmation back from support on this yet. Support is sending me something >> today but I believe it is the load resistor which I have already done. >> >> Dave wo2x >> >> >> Sent from my waxed string and tin cans. >> >> > On May 28, 2020, at 1:15 PM, Lou W0FK wrote: >> > >> > It’s E850824, KPA1500 PS Minimum Load Kit >> > >> > __ 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 PSU fan mod - Need resistor
I am still a bit confused by this, as I thought I was installing both--it consisted of two parts. Please share what you hear from Support. 73 Eric WD6DBM On Thu, May 28, 2020, 1:21 PM Dave wrote: > Hi Lou > > I think the PS minimum load kit is different than the resistor change to > slow down the PSU fans. I have already done the minimum load resistor which > helps to reduce the birdies on 80 meters. > > What I am referring to is a resistor change done in production which slows > down the PSU fans when the amp is idle in standby. I have not had > confirmation back from support on this yet. Support is sending me something > today but I believe it is the load resistor which I have already done. > > Dave wo2x > > > Sent from my waxed string and tin cans. > > > On May 28, 2020, at 1:15 PM, Lou W0FK wrote: > > > > It’s E850824, KPA1500 PS Minimum Load Kit > > > > > __ 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 PSU fan mod - Need resistor
Hi Lou I think the PS minimum load kit is different than the resistor change to slow down the PSU fans. I have already done the minimum load resistor which helps to reduce the birdies on 80 meters. What I am referring to is a resistor change done in production which slows down the PSU fans when the amp is idle in standby. I have not had confirmation back from support on this yet. Support is sending me something today but I believe it is the load resistor which I have already done. Dave wo2x Sent from my waxed string and tin cans. > On May 28, 2020, at 1:15 PM, Lou W0FK wrote: > > It’s E850824, KPA1500 PS Minimum Load Kit > > > Email Bruce, N7TY, he has an extra one and listed it on here for sale last > week > > 73, Lou W0FK > > > > -- > Sent from: http://elecraft.365791.n2.nabble.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 rocke...@gmail.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 PSU fan mod - Need resistor
It’s E850824, KPA1500 PS Minimum Load Kit Email Bruce, N7TY, he has an extra one and listed it on here for sale last week 73, Lou W0FK -- Sent from: http://elecraft.365791.n2.nabble.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 PSU fan mod - Need resistor
It is not on their site or I would have done it already. From what was posted on this reflector a few days ago the resistor value was changed at some point in production. Dave wo2x Sent from my waxed string and tin cans. > On May 28, 2020, at 9:57 AM, ex...@comcast.net wrote: > > So where in the world is this modification described? Can't find anything on > the Elecraft web site. > > Mike > K7PI > > -Original Message- > From: elecraft-boun...@mailman.qth.net On > Behalf Of rocke...@gmail.com > Sent: Thursday, May 28, 2020 06:12 > To: elecraft@mailman.qth.net > Subject: [Elecraft] KPA1500 PSU fan mod - Need resistor > > Hi > > > > I emailed support over the weekend and have not heard back. Not sure if they > received the email or are backlogged in response due to COVID-19, so posting > here. > > > > Looking for the resistor needed for mod to lower PSU fan speed on KPA1500 > s/n 423 > > > > 73 > > Dave wo2x > > > > __ > 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 ex...@comcast.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 arch...@mail-archive.com
Re: [Elecraft] KPA1500 PSU fan mod - Need resistor
So where in the world is this modification described? Can't find anything on the Elecraft web site. Mike K7PI -Original Message- From: elecraft-boun...@mailman.qth.net On Behalf Of rocke...@gmail.com Sent: Thursday, May 28, 2020 06:12 To: elecraft@mailman.qth.net Subject: [Elecraft] KPA1500 PSU fan mod - Need resistor Hi I emailed support over the weekend and have not heard back. Not sure if they received the email or are backlogged in response due to COVID-19, so posting here. Looking for the resistor needed for mod to lower PSU fan speed on KPA1500 s/n 423 73 Dave wo2x __ 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 ex...@comcast.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 arch...@mail-archive.com
[Elecraft] KPA1500 PSU fan mod - Need resistor
Hi I emailed support over the weekend and have not heard back. Not sure if they received the email or are backlogged in response due to COVID-19, so posting here. Looking for the resistor needed for mod to lower PSU fan speed on KPA1500 s/n 423 73 Dave wo2x __ 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
