[TenTec] Low Output, Corsair II

[ultrafixedwing@juno.com]

 Try the obvious first. Make sure all the boards are in tight. Take 'em
out and put 'em back in.
Paul
> 
> 
> >From: "Jim Reid" <jimr.reid@verizon.net>
> >To: <tentec@contesting.com>
> >Subject: [TenTec] Low Output,  Corsair II
> 
> >
> >Wonder what now.  Was sailing along on 40 CW at around
> >85 watts out;  then it was down to 17 watts!?
> >
> >Now,  best Pout on 40 CW,  into a Bird dummy load is about
> >30 watts.  Drive knob fully CW;  ALC knob also full CW. However,
> >the ALC light goes OUT after the ALC knob turns much past
> >the 2:30 position or so?  Occasionally the Pout will get up to
> >37 watts.  Ic on the CII meter reads 10A at 33 watts into the
> >load.
> >
> >Best Pout on the other bands into the load: 160, 22W;
> >80, 22W; 40, 33W; 24W; 20, 24W; 17, 22W; 15, 15W,
> >12, 22W; 10, 6W.  For whatever use that info might be.
> >
> >Just 13 months ago I had this unit(561) at TT for check out for low
> >Pout.  Note which came back with the rig was that they had
> >resoldered the low level driver board connections,  reset the
> >AKC and tested all bands as OK.  And this was after the unit
> >had been at TT just the month before that when it was completely
> >dead!  List of fixes came back with the first service;  not clear
> >which particular one actually brought the 561 back to life.
> >
> >I suspect the age and the shipping across 5000 miles has had
> >something to do with those early problems after I bought the rig
> >and had it shipped out here from the East Coast.  But don't
> >understand how the power can be just fine,  and a few minutes
> >later be cut more than in half with no movement of the unit on
> >the bench.
> >
> >Oh, oh.  That line just gave me an idea;  why not slap this
> >unit and see what happens.  Just did that----and the  Pout
> >just jumped back up to 78 watts on 40!!  So,  bopped it again,
> >just with my outstretched fingers -- Pout jumps up a bit more
> >to 83 watts??  And the Ic is up to about 14 amps.
> >
> >Obviously something is loose, not quite right inside,  hi.
> >
> >I would prefer NOT to ship this entire unit back to Tennessee
> >again,  but maybe just the right boards
> >
> >Any thoughts,  suggestion?  My vision is not so good,  so no way
> >I can get in there and resolder any connections,  hi!  But my
> >xyl can  if I knew where to aim her!
> >
> >73,  Jim  KH7M
> >
> >
> >
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> 
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