SB-102 - more troubles

Guy Giacopuzzi gggdds at JS-NET.COM
Thu Jul 16 02:40:04 EDT 2009


Is a "recalibration" ever really necessary on the 102's LMO?  Or does a 
relube solve the majority of the troubles?  I guess I'm really asking, 
how can a device like the LMO actually /get out of calibration/?  Are 
there any components in it that can drift in value?  I understand the 
problems with the grease and  contacts changing value, but can anything 
else in the unit "drift" over the years?

Guy

Glen Zook wrote:
> The problems that I have seen in the solid-state LMO in the SB-102 is not stability.  They seem to be as stable as the tube-types.  However, it has been my experience that the company that manufactured the solid-state LMOs did not perform the close calibration that TRW did on the tube-type.  In every SB-102 that I have worked on the LMOs were pretty much "spot on" at the 100 kHz points.  But, in between I have seen them as much as 5 kHz off from the dial reading.
>
> I understand that there is an amateur radio operator somewhere down in Florida who will work on getting the calibration of the solid-state LMOs just as good as the tube-type.  From what I have heard this is basically a "labor of love" because what he charges is very small when considering all the work that is required.  Unfortunately, his name and call escape me right now!
>
> Glen, K9STH
>
> Website:  http://k9sth.com
>
>
> --- On Tue, 7/14/09, Kenneth G. Gordon <kgordon2006 at VERIZON.NET> wrote:
>
> Some folks think that the earlier LMOs are more stable than the solid-state version in the SB-102, but I think that idea grew because of the same problem that Brian is having.
>  
> My SB-102 LMO is much more stable than any of my SB rigs with the tube-based LMO in them.
>
>
>       
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