Re: [Elecraft] K2/100 overheating?

2017-05-23 Thread Don Wilhelm
73, Ken N4KS k2/100 On Fri, 5/19/17, Don Wilhelm <donw...@embarqmail.com <mailto:donw...@embarqmail.com>> wrote: Subject: Re: [Elecraft] K2/100 overheating? To: "N4KS" <stuberkenn...@yahoo.com <mailto:stuberkenn...@yahoo.com>>, &quo

Re: [Elecraft] K2/100 overheating?

2017-05-23 Thread N4KS via Elecraft
helm <donw...@embarqmail.com> wrote: Subject: Re: [Elecraft] K2/100 overheating? To: "N4KS" <stuberkenn...@yahoo.com>, "elecraft@mailman.qth.net" <elecraft@mailman.qth.net> Date: Friday, May 19, 2017, 6:02 PM Ken, Did you set the bias properly?  What is

Re: [Elecraft] K2/100 overheating?

2017-05-21 Thread Don Wilhelm
was apart! 73, Ron AC7AC -Original Message- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Don Wilhelm Sent: Sunday, May 21, 2017 6:19 PM To: George Winship, NC5G; elecraft@mailman.qth.net Subject: Re: [Elecraft] K2/100 overheating? George, I will check the fa

Re: [Elecraft] K2/100 overheating?

2017-05-21 Thread Ron D'Eau Claire
To: George Winship, NC5G; elecraft@mailman.qth.net Subject: Re: [Elecraft] K2/100 overheating? George, I will check the fan air flow direction tomorrow because I am uncertain. If you have the label out and the wires on the correct holes, yours is likely OK. There are 2 philosophies about the fan

Re: [Elecraft] K2/100 overheating?

2017-05-21 Thread Don Wilhelm
George, I will check the fan air flow direction tomorrow because I am uncertain. If you have the label out and the wires on the correct holes, yours is likely OK. There are 2 philosophies about the fan direction. One is that you should exhaust the heat and let the assembly draw cool air

Re: [Elecraft] K2/100 overheating?

2017-05-21 Thread George Winship, NC5G
Interesting. I built my K2/100 about 17 years ago and the fan has always drawn air into the cabinet and exhausted over the heatsink. So, I rechecked the manual and disassembled my rig to check for proper assembly. Fan label is facing out and wires are soldered to the right pads(red=+, black=-).

Re: [Elecraft] K2/100 overheating?

2017-05-19 Thread Don Wilhelm
Ken, Did you set the bias properly? What is the current draw at 12 watts? Did you properly balance and calibrate the wattmeter? Are all the diodes oriented properly? Check against the parts layout near the back of the manual. Make certain the fan is mounted with the label out and that the

Re: [Elecraft] K2/100 overheating?

2017-05-19 Thread Ron D'Eau Claire
...@mailman.qth.net] On Behalf Of N4KS via Elecraft Sent: Friday, May 19, 2017 5:01 AM To: elecraft@mailman.qth.net Subject: [Elecraft] K2/100 overheating? I recently added the KPA100 to my K2. The heat sink gets VERY hot at any power level above 11 watts (that's when the amp kicks in). The fan

Re: [Elecraft] K2/100 overheating?

2017-05-19 Thread Ken Wagner K3IU
That is the KPA100 manual. Sorry for possible misdirection. 73, Ken K3IU On 5/19/2017 8:29 AM, Ken Wagner K3IU wrote: Have you done the temp calibration? Check manual about page 49 or so. 73, Ken K3IU ~~ On 5/19/2017 8:01 AM, N4KS via Elecraft wrote: I

Re: [Elecraft] K2/100 overheating?

2017-05-19 Thread Ken Wagner K3IU
Have you done the temp calibration? Check manual about page 49 or so. 73, Ken K3IU ~~ On 5/19/2017 8:01 AM, N4KS via Elecraft wrote: I recently added the KPA100 to my K2. The heat sink gets VERY hot at any power level above 11 watts (that's when the amp kicks

[Elecraft] K2/100 overheating?

2017-05-19 Thread N4KS via Elecraft
I recently added the KPA100 to my K2. The heat sink gets VERY hot at any power level above 11 watts (that's when the amp kicks in). The fan is running at high speed and pulling air OUT of the box. Just wondering if this is normal. Ken/N4KS