>
>
>> >Rich wrote:
>
>
>> ? Most of the people I knew in CA, NV and AZ who initially purchased
>> one-tube and two-tube Viewstar amplifiers experienced intermittent
>> output-bandswitch arcing problems and returned the ampifiers to dealers
>> for repair. Within months, no dealer in CA, NV and AZ was carrying
>> Viewstar amplifiers. It is my opinion that reports of bandswitch arcing
>> can not be overcome by marketing. . . Since the output bandswitch had
>> a breakdown potential much greater than the anode supply V, there should
>> have been no arcing problems from the HF potential present.
>> . Not long after "Parasitics Revisited" appeared in the September and
>> October, 1990 issues of *QST* magazine, I received a telephone call from
>> QST-staffer James "Rus" Healy. Rus told me that he had just received a
>> telephone call from one of the designers who had been involved with the
>> Viewstar amplifier. Rus said that this designer described mysterious
>> problems with an under-development amplifier that sounded to Rus like the
>> problems might be VHF-related. Rus said he recommended that this person
>> telephone me - which he eventually did. We talked, however, my guess,
>> based on subsequent events, is that he balked. .
>> - Free, unsolicited advice from yours truly: When a tube manufacturer
>> gives ratings for Amplifier or Oscillator Service, it's nothing to sneeze
>> at.
>> - cheers
>
>
>Truly a classic case of a "for the lack of a half-penny worth of tar the
>ship sank". Why are some designers so obstinate?
>
? Because I'm just a dumb schmuck in the land of fruits and nuts who got
tossed out of college after three years, who does not have enough sense
to kow-tow to every "expert"? . Another possibility:
- "I know that most men, including those who are at ease with problems
of the greatest complexity, can seldom accept even the simplest and most
obvious truth if it be such as would oblige them to admit the falsity of
conclusions which they had delighted in explaining to colleagues, which
they had proudly taught to others, and which they had woven, thread by
thread, into the fabric of their lives." Lev Tolstoy
> Everyone can learn from others experience.
? "This ship is really and truly unsinkable."
- cheers, John
Rich...
R. L. Measures, 805-386-3734, AG6K, www.vcnet.com/measures
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