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

[JF]

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
>
>
> Alexander N. Gerli, Sr.
> 548 Allred Mill Road
> Mount Airy, NC 27030-2202
>
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