sb-303 LMO problem

[wa1vwl]

Had a similar problem last year when I bought an SB-303 for the princely
sum of fifty bucks. Took it home, turned it on, and...same results you
got. Way back in the bowels of the SB-303 manual is a short note
addressing that problem. It seems there's supposed to be a 50 Ohm dummy
resistor plugged into the LMO OUT jack when the 303 is used by itself .
When I plugged one in, the LMO behaved. The previous owner didn't try
that, apparently. Tried to pry open the LMO with what seemed to be a can
opener. At least the results seemed to be that way. The 50 Ohm resistor
is not needed if you plan to use the 303 with the SB-400/401. Check the
transmitter manual for more precise info.

73/Gerry/W1ID

Rick Booth wrote:
>
> I have a sb-303 with a LMO that appears to have gone goofy.  It works ok for about the
> first 25 KHz, gets severly distorted for about the next 25 KHz and then gives up entirely.
>
> I need a schematic if that is possible.  That will save me the hassle of tracing out
> whatever is lurking in that dang box.
>
> Thanks in advance.
> Rick
> w6nzk
>
> Sponsored by the City of Tempe
>
> Listserver Submissions:  heath at listserv.tempe.gov
> Listserver Subscription: listserv at listserv.tempe.gov - "subscribe heath 'name' 'call'"
> Listserver Unsubscribe: listserv at listserv.tempe.gov - -"signoff heath"

Sponsored by the City of Tempe 

Listserver Submissions:  heath at listserv.tempe.gov
Listserver Subscription: listserv at listserv.tempe.gov - "subscribe heath 'name' 'call'"
Listserver Unsubscribe: listserv at listserv.tempe.gov - -"signoff heath"