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[AMPS] Blown TL922A... What to do?

To: <amps@contesting.com>
Subject: [AMPS] Blown TL922A... What to do?
From: wy6k@yahoo.com (michael watts)
Date: Wed, 6 Sep 2000 16:15:38 -0700 (PDT)
It is an interesting question.  Why do some amps have
suppressors and some don't?

--- measures <2@vc.net> wrote:
> 
> >
> >> Tom- it does NOT take an EE to detect the bias.
> My professional specialty
> >> was Rocket motors, with only enough electronics
> exposure to 'appliance
> >> operate' good instruments, but my second
> specialty (used professionally,
> >> too) was the detection and analysis of verbal BS.
> You and I both know of
> >> another prime source, but he(they) change their
> tune, and use references
> >> newer than 1935.  There is diversity there
> >
> >But then why does nearly every current-day HF
> amplifier manufacturer use
> >"1935 technology" with the inclusion of the classic
> coil turned around a
> >carbon composition resistor for the purpose of
> serving as a parasitic
> >suppressor?
> >
> >If parasitics are of little concern, who on this
> list (manufacturers
> >included) is perfectly comfortable with running (or
> manufacturing) their
> >multi-band HF amplifier without a parasitic
> suppressor?  One manufacturer we
> >know of uses an 8877 without the use of any
> suppressor, but other amplifiers
> >in their product line do.  Does this infer that
> some of their amp products
> >are prone to potentially damaging parasitics while
> others are not?
> >
> >-Paul, W9AC
> >
> good question, Paul.  During the Grate Parasitics
> Debate, six times, the 
> designer of the AL-1500 stonewalled my question
> about whether the 1500 
> uses a VHF parasitic-suppressor.  
> 
> cheers
> 
> -  Rich..., 805.386.3734, www.vcnet.com/measures.  
> end
> 
> 
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