Alexey, The R2 that is referred to by DK3RED is on the Front Panel - it is the power control pot.
There will be no change to any of the alignment procedures with the change in the T4 winding ratio. Please put a sticker inside your K2 stating that the T4 winding ratio is intentionally changed to optimize efficiency at 5 watts. I have worked on several K2s where this change was made, then forgotten about (or the K2 subsequently sold), and then the KSB2 and/or KPA100 was added, and the owner wondered why it did not operate correctly. 73, Don W3FPR Alexey Kats wrote: > Sorry, I managed to press the wrong key and sent it before I finished it. > > Anyway... I know that older version of K2 manual refers to changing > winding of T4 transformer to 2:2 (instead of original 2:3) in order to > increase efficiency of CW performance on 5W or less. Is it still > applicable to the current version of K2? I am not interested in SSB > mode at all, so limiting max power to 5W is acceptable. I simply want > to know whether the rest of tuning instructions will be the same if I > change T4 winding according to those directions from rev C manual? > (25-30% decrease in current drain is quite important when operating > from batteries.) In any case, I am going to add 6.8k resistor to the > R2 (of course it depends on the total resistance of R2 in the current > kit) on control board according to DK3RED mod (which will limit max > power to about 5W anyway), and I want to limit current consumption as > well if I can. > > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
