Bob, what are the TX IMD3 specs on the KPA1500 if you know please? The SPE uses a switchmode PSU, so voltage switching is simpler to provide A current draw higher in lower power ( current value 25 -3
Thanks Bob, The PSU seems perhaps heavier then than the inbult SPE unit then. The SPE total weight is 24 lbs. I would think the better IMD3 performance would be at the higher voltage in the SPE, at t
Jim, Sorry see now you have stated "using my K3/P3 with the added SVGA output" that answers below,, that you used that on both amps. regards Adrian Fewster Jim, when you did the IMD3 comparison betwe
The problem also with that is the temperature at the LDMOS source material (mount flange) is usually much hotter than where the sensor is located. In the SPE anyway, on which I have measured (infra r
Watercooled. This is a great watch ; https://www.youtube.com/watch?v=2d_rkfj05mI LOUD! Jim _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contestin
Bill thanks for the link. I see 'Elecraft K4' highly emphasized in font size, reflects perhaps your waiting time ? What do you think, does the K4 meet expectation's ? The amp probably uses a better
i see sense in your comments here Rob, but am curious on why the IMD spec would be worse ? Apart from correct biasing and build quality, I was always under the impression that more voltage and less c
Is this useful ? https://www.opweb.de/english/company/Amp_Supply/downloads/Amp_Supply--LK800--service_and_user--ID4282.pdf vk4tux On 7/12/21 09:51, Tom Hellem wrote: Amp Supply LK800C _______________
It is interesting to see the various opinions on Neutral and electrical safety. In Australia we have world best regulation on Electrical standards and I am an A class licenced Electrician. Here we ha
Jim, regarding below, I was referring to the opinions seen in this thread by list members regarding appliance connections, and not opinions by Electrical standard regulators. Misguided opinions are a
Has anyone tried the Eimac YU-100 replacing the 3-500z ? Thankyou vk4tux _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/list
Is the power meter on the AT1500CV PEP or AVG reading ? Can't find anything in the manual or online, I feel it is avg ? Thankyou 73 vk4tux _______________________________________________ Amps mailing
Alek, Did you try increasing Q of the input to ~c 2 to produce a better flywheel effect, which becomes a more stable input impedance through a wider drive level range ? More capacitance, less induct
Pull it all out, as has been well documented there is no need for a soft start mod for th SB-220, it is built into the transformer. You are only protecting the switch and an outlet strip will do that
From: Aleksandar Petkovic<vk6apk@bigpond.com> To: Mark Bitterlich<markbitterlich@embarqmail.com>, David Gow <6146guy@gmail.com> Cc:amps@contesting.com Subject: Re: [Amps] Harbach SB-220 Soft Start Re
I use the warc bands all the time on my pristine SB-220. Mostly 12m, however ; I did not have an issue with 30m apart from input tuning. I added capacitance and reduced L on my inputs to raise Q for