> -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Ron > D'Eau Claire > Sent: Sunday, July 09, 2006 1:52 AM > To: elecraft@mailman.qth.net > Subject: RE: [Elecraft] Optimising the PA stages > > There is an optimizing mod to one toroid for the K2 IF you > are going to work at 5 watts or less, maximum. It'll reduce > the xmit current a bit to help those using he QRP K2 with > internal batteries. The flip side is that the rig is less > efficient at higher levels. > > It's on the Elecraft web site (www.elecraft.com) under > Builder's Resources.
Ron Thanks, I already found that one. It actually mentions it in the schematic in the manual but applies only to T4 turns ratio I think. At the moment its working quite well, its in my nature to be curious though ;-) I am going to have plenty fun with it either way. All best John > > Ron AC7AC > > -----Original Message----- > Hi All > > Ser Nr 5544 is now alive and kicking. > > When doing the Align/Test P III with the referenced power > level setting of 10.0W I find the current level hovering > around the upper limit of the recommended range at 2.0 amps > although I did not see any Hi Current warnings. > > All the RX/TX alignment also seems OK. Is there any published > tables on typical performance variance across the bands > regarding signal level in for say S9 or MDS? or typical power > levels out? > > This leads me to believe that some optimising can possibly be > done, or I have some stages slightly off the intended specs. > > I was sure I seen some posts previously on alternate winding > of the transformers in the TX chain from T1 onwards but I am > getting way to may hits from the 11k messages I have archived > from this list to be able to filter them down easily. > > Any information appreciated. > > John > > > _______________________________________________ > Elecraft mailing list > Post to: Elecraft@mailman.qth.net > You must be a subscriber to post to the list. > Subscriber Info (Addr. Change, sub, unsub etc.): > http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/subscribers.htm > Elecraft web page: http://www.elecraft.com > _______________________________________________ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
