[Heathkit] SB-101 vs 102

[Glen Zook]

The SB-102 uses a solid-state LMO that most of which were not manufactured by TRW (manufacturer of the tube-type LMOs) and there is a definite problem with calibration.  The vast majority of solid-state non-TRW LMOs are "on" at the 100 kHz points but can vary as much as over 5 kHz "off" in between.  The tube-type LMOs are always (unless someone has "fooled with" them) well within 1 kHz over the entire 500 kHz that the LMO covers.

There is a good chance, if your particular LMO "tracks" properly, that it was one of the relative few that were made by TRW and furnished with the SB-102.  Most of the TRW solid-state LMOs were used in the SB-303 receivers.  The non-TRW LMOs can be made to track properly.  However, it usually takes a number of hours to accomplish this and therefore doing so is a "labor of love".

Glen, K9STH

Website:  http://k9sth.com


--- On Sun, 10/25/09, Paul Kraemer <elespe at lisco.com> wrote:

After watching prices on ebay for SB-101 and SB-102 transceivers it appears to me that the SB-101 sells higher than the SB-102. Is that a correct observation or just my limited experience? Why would a newer, cleaner SB-102 be worth less than the older SB-101? Models are supposed to improve after time. I have an SB-102, a very nice, exceptionally clean, low hour model (ssb and cw filters) bought out of curiousity. It appears to perform exactly as specified, or better. The horror stories I've read about the newer lmo seem to me to be unfounded (in my example anyway). Is there some other difference I am missing? I'd seriously consider selling the SB-102---too many radios---not enough hours, but it appears that using ebay prices of late it would be more like giving it away. It is a little (actually a lot) too good for that. I would sincerely welcome opinions of the list members


      

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