HW-101 Elmer needed

[Clark, John]

I am attempting to 
bring up a HW-101 that was built but never operated.


 

To date I have 
completed the initial check out and the Receiver Alignment.


 

I have stopped 
here.


 

The Receiver appears 
to work well but...


 

"Proper receiver 
operation will be indicated by minimum calibrator signals of S9 +20 dB
at 
3700

and decreasing to S3 
at 29.2"


 

I can only get S5 at 
3700 and S3 at 29.2


 

The resistance 
values at V17 look correct per the chart on figure 1-22.

The voltage values 
on figure 1-21 look OK around V17 except that the 70v mark reads 
77.


 

I tried to set the 
crystal calibrator to 100K but the meter I have causes a change in the
tone I 
hear in the speaker.

And from a previous 
thread here, I can only get down to 101,200 Hz.

Anyone have a junker 
with a good 100K crystal?


 

I checked the output 
on the C218 side of CR201 I see about 10V PP, but not much on the other
side of 
CR201.

It look like the 
front end pulls this signal down when loaded.


 

I also tried to set 
the frequency using the procedure on page  124 using a TenTec set at 10 
Meg.

I can only get it 
down to a 200 Hz tone, and when I do the oscillator will not restart
after I 
switch to VOX.


 

Am I looking in the 
right place?


 


 


73


John


N0URE

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