[Amps] R. MEASURES PRAYERS ANSWERED

k7fm k7fm at teleport.com
Thu Jun 1 23:18:04 EDT 2006


"I have had dozens of Sb-220 amps in my almost 40 years as a ham.  Most  of
the parasitic suppressors I have changed had their carbon resistors change
value enough to make them not as effective as suppressors should be.  Most 
of the
time a change of resistors will tame a quirky Sb-220."

Let us follow this statement with basic logic.

1.  The SB-220 becomes unstable when the carbon resistor changes value.
2.  When that happens, ham A changes out the parasitic suppressor by 
installing Rich's nichrome suppressor kit, which just happens to include an 
excellent and stable replacement resistor for the aged carbon resistor.
3.  Ham A installs the kit, complete with the new and stable replacement 
resistor.
4.  The SB-220 is stable again.
5.  Grateful ham A exclaims to the world that it is Rich's marvelous 
suppressor fixed the problem.

It seems the poor resistor has been neglected and is not receiving the 
credit it deserves.

I am not trying to discredit Rich's research or opinions.  I just want to 
give a little more credit to the resistor.  It seems under appreciated in 
this whole affair.

Colin  K7FM



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