Jim and all, I have worked on about 5 K2s since I acquired my XG1, and I can state that the gain of a properly aligned K2 from the antenna through the IF amplifier is very close from one K2 to another. Filter alignment will account for huge variations.
Also, since I have been experimenting with my fixed audio output board for the K2, I have found that the audio level at the volume control (VOL1 and VOL2) is also close across the board - but some do sound louder than others to my ears (given a similar AF gain setting). I have long wondered what the difference may be and am at the point of concluding that it is due to differences in the LM380-N audio amplifier gain (but the parts should sufficiently consistent from batch to batch than the differences I hear - and my own SN 00020 is one of the 'weak' ones. I am not inclined to blame it on speaker differences because I have tried several speakers in my K2 and all produce about the same level. One of these days, I might investigate further, but it is not really important enough to persue at the moment - more a curiosity than anything else. 73, Don W3FPR Life is what happens when you are making other plans ----- Original Message ----- > One point: > > We need to distinguish between "volume" and "gain". > > I've never noticed any K2 being short of "volume" - meaning the ability to > deliver room-filling audio without unacceptable distortion, *given a big enough > signal*. > > But some K2s have more gain than others, meaning total overall amplification > from the antenna terminal to the speaker or headphones. > _______________________________________________ Elecraft mailing list Post to: [email protected] http://mailman.qth.net/mailman/listinfo/elecraft You must subscribe to post. Subscriber Info (Addr. Change, Unsub etc): http://mailman.qth.net/subscribers.htm Elecraft page: http://www.elecraft.com
