[AMPS] ALC from SB-200 reduces FT-900 power on CW

[km1h@juno.com]

On Thu, 24 Sep 1998 11:53:55 -0700 (PDT) david wintheiser
<w0opw@yahoo.com> writes:
>
> Thanks to all that replied to my query.  I was quite surprised that
>the ALC line would inhibit CW operation
>on the FT-900.  From the responses I see that there is no reason to
>use the ALC line so one less cable to mess with !
> 
> To Carl: I'm glad to see you specializing in SB-200's 
>and SB-220's.  I wasn't aware of the quality that was built into these
>until I undertook the task of trying to get an old Dentron
>'Dog'(160-10L) fired up this Spring. What the SB-200 has that the
>Dentron doesn't:
> 1). Grid current monitoring
> 2). Output current monitoring
> 3). Swr  monitoring
> 4). Tuned input circuit
> 5). Isolation of input and output circuits
> 6). A quality manual and circuit diagram
>
> My intent is to use the Dentron on 160m only but after making 18
>fixes and changes, it still doesn't work.


Pat,
The 10-160L is a bit of a dog but it should work fairly well on 160. Just
think of it as the ancestor to the Clipperton L !
What sort of problems, fixes and changes did you have and make?
The primary problems in the output of that amp are bandswitches and
loading caps.


> 
> I am now so impressed with quality that went into the SB-200 that I
>have to consider these old amps as 'Best Buy' values.


I buy 2-3 a week to convert to 6M. They are indeed a bargain considering
what you get and 1000% easier to work on than the Yaesu FL2100 wannabe
clone.
Plus parts are readily available.

73   Carl   KM1H






>
> Thanks again to everyone.
>      Pat W0OPW
>
>
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