[Heath] SB-104 which has been "A'd...

[ChrisIwata at aol.com]

KE5ZB is right, and yes the flickering last digit was annoying. Even when  
not tuning, if the last digit
was say '4' but close to '5' it will change back and forth rapidly. 
 
There was a mod out there as I recall that slowed the update rate of the  
digital display so that
the flicker was less. Modern frequency counters have logic added to  
minimize this last digit jitter.
 
Chris, KL7DM
 
In a message dated 6/1/13 3:01:57 P.M. Pacific Daylight Time,  
lhouseparker at livingston.net writes:

Not a  typo - on the original SB-104 the 100 Hz button turned off the last  
 frequency display digit, after the decimal point. Evidently the design 
people  at Heathkit at first thought that some hams would be bothered by 
watching that  digit rapidly change while tuning. I seem to recall that the field 
104A  upgrade kit, among other things, converted that button to select the 
optional  400 Hz CW filter, and the last display digit was left turned on all 
the  time.

73
John   KE5ZB


On 5/31/2013 7:29 AM,  Alexander N. Gerli wrote:  
 
Hello, gang!


My '104A started out as a  104 and had the A mods done. There's something 
on the front panel that may  be a typo?


There's a button next to  the NB button which is labeled "100Hz". Not 
400Hz. I don't operate CW, so I  haven't ever tried this option. Is this where 
the CW Filter's supposed to  be? What's with this "100Hz"? My radio came with 
104A Manuals, so that only  shows a 400Hz label.


Typo or what?


-- 

 
 
 
 
 
 
73
,


Sandy  AC1Y













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