[Boatanchors] KWS-1 Puzzle

[Gary Franklin]

This KWS-1 puzzler was way too easy! I had four resonses and all four were 
correct! This resonse sums it up:

My guess is that the external coax relay contacts that take pin 11 of J102 
to ground  on SSB (pin 13) is no longer making contact. On CW and using the 
Test Key switch that function is keyed solid on as I recall. I have had the 
same trouble and it took me many days to figure it out but that was because 
mine wasn't a working unit to begin with! Clean or inspect the contacts and 
associated wiring and I'll bet it will be cured.


Exactly right!  I had pulled the transmitter out to work on another problem. 
In the process not realizing the significance of leaveing the antenna relay 
hooked up I diconnected it, hense yet another problem. So now I am now back 
to ground zero, where I started, thats better than being in the hole! Don't 
you just hate it when while working on one problem another shows up!

I am now working on a flakey output problem. I get anything from 100 watts 
to the correct 600 watts just depending on the position of the moon and the 
alignment of the earths magnetic flux lines. I have noticed that the PA grid 
current fluctuates in the CAL mode and is slow to respond when I increase 
the carrier control in the CAL mode. The RF output fluctuates just as I see 
PA grid current fluctuate in the CAL mode. I have put a VTVM with RF probe 
on all the following test ports,  250 KC injection, VFO injection, XTAL 
injection and VIF. I see nice steady voltages at the proper values until I 
reach the VIF port. This port is the grid of V204 which is the second mixer. 
At this point the voltage fluctuates and gets flaky. So I think my problem 
is related to either the 1st mixer, 1st amplifier, or 2nd amplifier. In 
other words somewhere between the input (grid of V201) of the first mixer 
and the input of V204 the second mixer.  I have checked/replaced tubes in 
that string with no improvement. Any thoughts??

Thanks

Gary   K8BKB