Hi Don, thanks for the reply. >check the green winding, it is easy to pull the leads too >much and end up with a badly tinned lead. Absolutely correct - that was the problem, RF gain now restored.
73 Trevor G0KTN -------- Original Message -------- Trevor, An RF Gain with severely limited range is normally an indication that there is something wrong with T2 - check the toroid leads for good tinning. If you cannot see a bit of tinned lead on the toroid side of the board, it probably was not tinned close enough to the core - especially check the green winding, it is easy to pull the leads too much and end up with a badly tinned lead. 73, Don W3FPR Trevor Smithers wrote: > I've just completed part 1 of the 3080 build and re-done the alignment. All > appears well, > 40/20 rx working as expected. > However I've noticed that the rf gain control (R1) appears to now have very > limited range > in fact it hardly seems to make any difference at all - is this because the > rest of the build > has yet to be completed or does it indicate a possible problem. When I did > the > resistance check of R1 I got around 900 ohms. > > 73 to all > Trevor G0KTN > > _______________________________________________ Elecraft mailing list Post to: [email protected] 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
